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UK growers' experiences of a ToBRFV outbreak

AHDB commissioned Dave Kaye to carry out three case studies with UK growers who have had a ToBRFV outbreak on their sites, to explore their first-hand experience, including how the virus was found and reported, the symptoms that were observed, the pattern of spread, and how the outbreak was managed. The…

Tomato brown rugose fruit virus emerges in Hungary

Tomato brown rugose fruit virus (ToBRFV) has been detected in Hungary, national food safety authority Nébih said on Monday, according to state news wire MTI. ToBRFV was…

Photo by Kevin Gutting

Five College Farms handle plant pests

All farmers constantly manage pests and diseases that impact the health of their crops and the profitability of their businesses. From one perspective, these are purely a nuisance that ought to be written out of the story. But both the plants we like and the pests we don’t are all central characters in a…

Five new ToBRFV infections in the Netherlands

The Netherlands currently has 26 cultivation locations officially infected with the Tomato Brown Rugose Fruit Virus. Since March, 5 new infections have been reported. The…

Biological solution against green shield bug in development

Koppert Biological Systems is developing a biological method to combat the southern green shield bug (Nezara viridula). Koppert is working hard to make this product commercially available in 2022. Over the course of the previous decade, the southern green shield bug has ravaged unheated pepper, aubergine, and cucumber greenhouses…

UK: biological features of the leafminers, Tuta absoluta and Liriomyza spp.

There are two types of leaf-mining insects that may be found in UK tomato crops: the moth, Tuta absoluta, and the flies, Liriomyza spp. The most common fly is Liriomyza bryoniae but growers should also be aware of two non-indigenous fly species, L. huidobrensis and L. trifolii, which are notifiable in…

Predatory mite important trump card in spider mite control

As a cultivation adviser for strawberries, soft fruits, and greenhouse-grown vegetables, Paul van de Ven knows only too well that spider mites constitute a huge problem. ‘This pest is an important point of concern at the companies that I visit. This is because spider mites can be considerably detrimental…

New perspectives needed to boost success of biological pest control

A CABI-led study has revealed that the success of Classical Biological Control (CBC) in Europe, North Africa, and the Middle East is only rarely dependent on the released biological control agent, but more often on other factors, such as the target pest, its host plant, or the circumstances of the…

Identify, monitor, manage the destructive pepper weevil

The pepper weevil (Anthonomus eugenii Cano) is a destructive invasive insect pest of cultivated peppers in the southeastern United States. Adult pepper weevils feed on fruit and leaf buds and lay eggs on flowers, buds, and fruits. Larvae also feed inside the fruit, causing premature fruit-drop and often…

"Trianum successfully controls Fusarium in lettuce"

Guidizzolo in Northern Italy is an important location for the production of leafy crops. Almost 400ha are dedicated to the production of lettuce in open fields and tunnels. Here, as in other important areas for leafy crop production, Fusarium oxysporum f. sp. lactucae is considered to be one of the main…

Intensified pest control in Eastern Africa

As part of a broad-based initiative to address the plant protection needs of the Eastern Africa nations, a practical training program on Pest Risk Analysis (PRA) was delivered…

Study on thrips diversity and Frankliniella occidentalis trends on three melon cultivars

Globally, thrip pests of agro-ecosystems are well studied. Nevertheless, in Algeria, this insect group remains poorly known. The research was conducted to determine thrips…

The environmental risks of crop protections need to be revised

Small streams in agricultural ecosystems are heavily polluted with chemicals

Crop protections safeguard agricultural yields by controlling harmful insects, fungi, and weeds. However, they also enter neighboring streams and damage the aquatic…

Vitabeam

Supercharging light provides plants with energy cocktail to fight pathogens and thrive

CEA facilities boast the most extreme, sophisticated systems of the agricultural industry. Whether it is a vertical farm, a single-tier cannabis indoor cultivation, or a gigantic tomato greenhouse, growers have to deal with extremely complex systems. Even though one might be taking all the precautions,…

Robots may eventually help kill weeds that impede strawberry yield

Think of University of Florida scientists Nathan Boyd and Arnold Schumann a bit like surgeons. Except, in this case, their operating room is a strawberry field. With their research, Boyd and Schumann hope to eventually help growers unleash surgical strikes on weeds – without vanquishing their fruit.…

Results show gap between city and countryside

Swiss vote down ban on chemical crop protection

Chemical crop protection products will not be banned in Switzerland, nor for consumers nor for growers. Neither will it be prohibited to import produce and products made using them. That's the result from yesterday's referendum. Also the drinking water initiative, which wouldn't totally ban chemical crop…

Seeds of change grant to help farmers face climate challenges

Farmers around the world face unique challenges in their effort to provide abundant, safe, and flavorful food. One often overlooked issue for farmers is climate change. “The environment has a huge impact on plant health and reproduction,” said Alfred Huo, UF/IFAS assistant professor of plant breeding.…

More resilient cucumber crop starts with healthy roots

Now that we are heading towards summer, second cucumber crops are starting to be planted in greenhouses. Now is the time to take a close look at biological control, according to Biobest advisor - Marvin Koot. “The second crop starts on less clean mats – with increased Pythium pressure”, he says.  “We’re seeing…

Robots may be suited to help kill weeds in strawberry fields

Through new research, University of Florida scientists Boyd and Schumann hope to eventually help strawberry growers combat weeds. Additionally, robots may replace tractors as…

US: Addressing resistance-breaking strain of tomato spotted wilt virus

The tomato industry is continuing to look for a solution to address the issues created by the resistance-breaking strain of tomato spotted wilt virus. The SW5 gene had been a significant breakthrough for the industry. Producers quickly adopted new cultivars with the gene that was shown to be resistant to…

US: Southern bacterial wilt causing problem in vegetables

Weeks of wet weather in Louisiana and SE Texas has led to damage from one of the most serious diseases of crops such as tomatoes, eggplant, and bell peppers. LSU AgCenter…

Learning plants' feelings helps scientists improve crop production

Scientists have spent a lot of time and effort trying to correlate the genotype, genetic composition, plant with its phenotype, or visible qualities. Plant scientists can forecast how a plant will function in the real world by studying its genome, which can be valuable for breeding crop types that generate high yields…

UK: study on first detection, symptoms and management of Southern Tomato Virus

In May 2018, tomato leaves exhibiting symptoms of necrotic patches were collected from a glasshouse in Southern England. It was suspected that the samples were infected with Tomato chlorosis virus (ToCV), genus Crinivirus, as ToCV had been detected in a different variety on the same holding. Analysis was…

Swiss to vote on whether to become first European nation to ban synthetic pesticides

"Romantic image of farming threatens food security"

Switzerland could become the first European country to ban artificial pesticides in a June 13 referendum which backers of the initiative hope will trigger similar prohibitions…

Tomatoes seized at US border for ToBRFV protection

U.S. Customs and Border Protection Officers and CBP Agriculture Specialists working at El Paso area ports of entry made 10 agriculture seizures during the previous week.…

Kenya News

Kenyan government announces measures to tame increasing pest threat

Kenya has over the last few years been experiencing increased pest threat invasion. This has been occasioned by the increased movement of plants, plant material and articles that harbour pests across its borders. Speaking during a national validation workshop for the Plant Protection Bill 2021 in…

Beer waste creates safer crop protection against nematodes

A new study looks at organic byproducts from beer production as well as manure generated by farmlands as a potential strategy in disinfesting soils, while also preserving healthy soil with microorganisms, and eventually increase crop yields. This marks the latest attempt to both reduce waste from…

Florida News Time

France’s insect greenhouse eliminates growers' need for crop protection

Farmers in western France are focusing on rare crops, breeding millions of small predatory insects and wasps to protect tomato plants without relying on chemical crop protection. “This is in one of the insect greenhouses called Macrolovs,” says Pierre Eve Jestin, with a cloud of pale green insects…

US: Cucurbit downy mildew forecasting website up and running for 2021

For cucurbit growers who have been using the CDMpipe website the past few years to track the progress of cucurbit downy mildew in the US, a new website was relaunched for the 2020 growing season. Anyone can visit the new website by clicking here. Please take the quick survey to help our colleagues out.…

New Orondis Plus for mildew protection in lettuce

The launch of new Orondis Plus will give lettuce growers a valuable new tool to add to fungicide programs this season. The inherently high potency of the active, oxathiapiprolin (OXTP), in Orondis Plus, used in combination with Amistar, has proven highly effective in preventing key diseases in both…

Organic multitasking: from human food additive to crop protection

Scientists from the Agricultural Research Service (ARS) are working to understand how something can be equally effective as both a government-approved food additive and as a chemical crop protection. Methyl benzoate is a naturally occurring compound produced by plants. The U.S. Food and Drug…

Finland launches study on how climate change impacts on plant pests

Finland, as the driving force behind the International Year of Plant Health 2020, has also been crucially involved in the production of one of its key legacy accomplishments – the development of a scientific review study “Climate-change impacts on plant pests: a global challenge to prevent and mitigate…

Women in agtech: Fatma Kaplan

"Farmers needed a solution to control plant-specific nematodes”

Fatma Kaplan’s advice to her younger self is fairly straightforward. “Skip the postdoc and start a company,” she says matter-of-factly. Kaplan’s journey from scientist to business entrepreneur was unplanned, but if she were to do it again, she says she’d focus on commercializing products rather than…

Agri-food chain organizations join forces in open letter

Future availability of crop protection tools

Agri-food chain organizations joint their forces to write an open letter about the future availability and use of crop protection tools in the framework of the EU Farm to Fork…

Seed companies respond to threat of new downy mildew variety

Bremia lactucae, the causal agent of downy mildew in lettuce, is genetically very variable. Even within one lettuce production field, several races may be present. The IBEB-EU…

Case study for control of the tomato moth Tuta absoluta

Accelerating the discovery of new biocontrol agents

Ecologists study how populations are regulated, while scientists studying biological pest control apply population regulation processes to reduce numbers of harmful organisms: an organism (a natural enemy) is used to reduce the population density of another organism (a pest). Finding an effective…

"Our lettuce varieties have resistance against new downy mildew race BI:37EU"

Downy mildew is a major threat in lettuce. The fungus can damage the lettuce leaves in both protected and open-field crops, resulting in a loss of yield. Last year the European Commission of the International Bremia Evaluation Board (IBEB-EU) identified a widely occurring new variant of downy mildew in…

Aphidoletes-System: "as efficient as it is effective at controlling aphids"

The fight against aphids is in full swing again. If growers had to choose one control agent they would not want to be without, most would select Aphidoletes-System. While displaying excellent searching behavior, this gall midge plays a key role minimizes hotspots from developing. About 3mm in size and…

US closes border to Canadian exports of boxwood, euonymus, and holly

Effective immediately, the United States Department of Agriculture's Animal and Plant Health Inspection Service (APHIS) is amending entry requirements for the importation of…

"When in doubt, get advice from a lab"

First aid with ToBRFV

First aid with ToBRFV was the title of last week’s webinar organized by DCM for tomato growers from Belgium and the Netherlands. A variety of specialists were given time to speak. Moderator Thijs De Langhe introduced Christine Vos of Scientia Terrae as the first speaker. Christine gave a brief review of the rapid spread of this…

Study on survival and reproduction of Harmonia axyridis under insecticides used in tomato plants

Agriculture depends on the correct use of different methods for pest control, however the cultivation methods adopted for Solanaceae demand numerous pesticide applications. These products can be either harmful or selective to beneficial organisms, such as Coccinellidae predators. The aim of this study…

US (MI): First cucurbit downy mildew spores identified in air samples in Allegan County

Cucurbit downy mildew spores have been verified in air samples using a Burkard volumetric spore trap in Allegan County, Michigan. A cucurbit downy mildew disease outbreak on cucumber plants has not been reported in Michigan at this time. While it is concerning that an influx of sporangia has been…

Agricultural pests rely on bacteria to overcome plant defenses

Insect larvae may appear harmless to humans, but many of them can be very dangerous to feeding plant species, some of which are important crops. Plants cannot escape danger like animals, but many plants have evolved creative strategies to protect themselves from herbivores. Herbivorous insect larvae…

Victoria, southern NSW and South Australia: Fruit fly to hit hard come spring

Fruit fly infestations are expected to hit orchards hard this spring-summer, and fruit fly campaigners are again reminding home gardeners and growers to strip their ripe fruit…

©Pessl Instruments GmbH

BASF Digital Farming and Pessl collaborate to boost fruit and vegetable production

"We want to prevent the damage occurring in the first place"

BASF Digital Farming and Pessl Instruments have signed an agreement to collaborate globally on R&D activities to improve pest management in fruits and vegetables and thus boost production. The collaboration will pair the unique hardware and software capabilities of Pessl, specifically its automatized…

Ausveg

Parasitoid wasps: The focus of a new biocontrol program for Queensland fruit fly

A new national research project is underway that aims to develop a biocontrol strategy for managing Queensland fruit fly populations in Australia. The project focuses on the use of Australian parasitic wasps, or parasitoids, that specifically attack Queensland fruit fly. Project Lead Dr Paul Cunningham…

New, ‘broad’ type of resistance against insects found in plants

Researchers at Wageningen University & Research (WUR) and KeyGene in the Netherlands and Umeå University in Sweden have discovered that a resistance gene in thale cress (Arabidopsis thaliana) that is active against the green peach aphid also affects several other aphids and some whiteflies. That is…

Shawn Butler, NCSU PDIC

Identifying and controlling botrytis in greenhouse tomato production

Botrytis, or gray mold, caused by the fungus, Botrytis cinerea, can cause significant losses in high tunnel and greenhouse tomato production if not controlled properly. The pathogen can rapidly spread during periods when structures are closed and when relative humidity remains high for long periods of…

Identifying white mold in tomato production

White mold, or timber rot, is caused by the soil-borne fungal pathogen, Sclerotinia sclerotiorum. The photo on right shows a high tunnel tomato plant with main stem infected by white mold. Over time the entire plant will slowly collapse looking similar to a wilt or root rot pathogen as the water supply…

Energy-saving success during the rearing of natural enemies

The Energy and Water Sustainability Focus Group of Koppert is hard at work prioritizing and reducing Koppert’s consumption of natural gas, other fossil fuels and electricity. This includes using a green label greenhouse with sustainable technologies such as heat-saving screens and heat pumps. One…

Photo: Matthew Bertone

6 common greenhouse pests and how to manage them

Pest and disease outbreaks in a greenhouse are a serious pain and can get out of hand if they aren’t addressed properly. Pest and disease outbreaks in a greenhouse usually require three main factors: a susceptible host plant, the presence of a pest or disease, and the right environment for it to…

New broad type of resistance against insects found in plants

Identifying the genetic code for disease resistance in plants is normally a tricky thing. A single gene can usually only offer protection against a specific disease or parasite. But this time it’s different. Researchers at Wageningen University & Research have discovered that a resistance gene in thale…

"Regulatory reform for biological crop protection is needed"

A new article published in AgroPages today by Dr. Minshad Ansari, Chairman of the World Bioprotection Forum (WBF), argues that now is the time for reforming the regulatory…

Turkey's tomato industry threatened by ToBRFV

ToBRFV is posing a great threat to the tomato cultivation of southern Turkey's Antalya province, as it is spreading rapidly among tomato seedlings. Tomato producers in Antalya…

UK: Tackling Japanese flower thrips in protected ornamental and herb crops

Japanese flower thrips has been confirmed in the UK. Wayne Brough, Knowledge Exchange Manager Horticulture, tells AHDB how lessons from the Netherlands may provide answers on how to control this new pest that can affect ornamental and herb crops.A new thrips species has been confirmed on protected crops…

Researchers call for tools to prevent plant disease pandemics

"Plant diseases don’t stop at a nation’s borders either"

Plant diseases don’t stop at a nation’s borders and miles of oceans don’t prevent their spread, either. That’s why plant disease surveillance, improved plant disease detection systems, and predictive plant disease modeling – integrated at the global scale – are necessary to mitigate future plant disease…

New varieties with high resistance in pipeline

Additional commercial varieties with intermediate resistance to ToBRFV

Bayer announced today the commercial availability of tomato varieties bred to help growers address the challenges of the tomato brown rugose fruit virus (ToBRFV). These include a grape tomato, pink beef, beefs, and Roma-type tomatoes, offering strong Intermediate Resistance (IR) to both leaf and fruit…

Koppert provides greenhouse horticulturists with Horiver® adhesive plates.

Chromotropic traps that catch 400% more thrips

The adhesive traps marketed by Koppert under the Horiver® brand have shown an unbeatable effectiveness in horticultural greenhouses, especially in capturing thrips and whiteflies, which are two of the most common pests in intensive agriculture in southeastern Spain. The latest tests carried out by…

Times of Malta

Malta: Tomato virus leaves farmers facing financial ruin

Farmers have expressed grave concerns about an imported virus spreading in Malta which threatens to decimate the all-important tomato sector. Ruben Montebello, a full-time farmer for the past decade who left the tourism industry to work in agriculture, lost five greenhouses’ worth of tomatoes due to…

A greenhouse chemical usage guide for vegetable growers.

Vegetable pesticide series: Can I use it in the greenhouse?

Vegetable growers often use greenhouses or hoop houses to start transplants for field production or for full-season protected culture. Certain types of pests and diseases can be reduced in these controlled settings, but the occasional outbreak may require treatment from a pesticide. Vegetable transplants…

Hoverfly Eupeodes-System delivering results against aphids

"Growers can now reduce aphid populations even more efficiently"

Last summer Biobest introduced its new weapon against aphids - Eupeodes-System. This year Biobest advisor, Bart Elseviers, is working with a number of pepper growers who have added it to their control program and are getting good results. “With the recent loss of many chemical crop protection products…

Greenhouse soil study highlights control on mustard-derived biopesticide

MustGrow announces successful greenhouse efficacy results of its patented mustard-derived biopesticide on Aphanomyces euteiches zoospores ("Aphanomyces") via an independent third party. Control in greenhouse soil was recorded across a range of economic application rates. "We will advance to larger-scale…

Firefly: A bug early warning system/precision crop health monitor

Automated detection of harmful insects while monitoring overall plant health

In large-scale CEA facilities, it is very difficult to manually inspect plants for pests and disease. If a breakout occurs - it tends to spread quickly with severe losses! Efficiency comes with scale, but the danger of catastrophic loss increases with scale - more crop at risk in a large facility demands…

UV trap prevents pest insects from eating crops

Anyone who does a search on Google on the topic of catching insects with UV light will quickly find the well-known blue insect killers as found in snack bars or butchers. This is also the case with Dutch Ardisia grower Dick van den Bos. About four years ago he suddenly suffered the presence of the…

Practices and products to control algae in greenhouses

The University of Connecticut has published a review about the biology of algae and practices and products to control it in greenhouses. Algae is one of the most common…

Inspiration from nature for new 'green crop protection products'

Pesticides are sometimes made using processes familiar from chemistry or biology. Two examples of this can be seen in the decisions of the Ctgb board meeting of 28 April. An…

NZ: Increase mental fitness at the Horticulture Conference 2021

Growers are in an industry where so much is out of their control.  For example, the weather, availability of labor, the price paid for produce, and if the tractor’s got a flat tire this morning. Jimi Hunt specializes in mental fitness and is speaking at the Horticulture Conference 2021: Resilience and Recovery.…

DNA markers that elicit resistance discovered

Code for ToBRFV-resistant tomatoes cracked in Israel

TomaTech announces a major advancement in the fight against the Tomato Brown Rugose Fruit Virus (ToBRFV), which has caused significant economic damage estimated as much as billions of USD in the last few years globally. Led by Assaf Eybishitz Ph.D., the company furthered the fight against this pandemic…

CropAid

"We applied it to apricots and sweet cherries, and at -2 C they did not suffer any damage.”

In the last few weeks Europe has been hit hard by low temperatures and night frosts, this can cause large crop losses and many sleepless nights for growers. This is also a problem in many other areas around the world. UK company CropAid Int. Ltd. was established in 2005 and produces a product which…

New products from Yuksel Seeds

ToBRFV-resistant tomato varieties and short cucumbers for planting in spring and summer

The seed house Yuksel Seeds has obtained tomato varieties resistant to the rugose virus (ToBRFV), a contagious plant virus that spreads easily by mechanical transmission and makes tomatoes unmarketable. Although its incidence is not yet as devastating as in other countries, this is undoubtedly great news…

From yellowed broccoli to mushy avocados: scientists use AI to cut food waste

If you have ever brought home seemingly fresh produce from the grocery story only to find it wilted and moldering a few days later, Tie Liu feels your pain. “Everybody has this problem: Which of these vegetables or fruits should I use first? Guess wrong, and you end up throwing out the food,” said Liu, a…

Biological control for two-spotted spider mite in raspberry

Scott Raffle with AHDB  examines whether biological control methods for two-spotted spider mite can be compatible with control options for spotted wing drosophila in raspberry crops.…

NVWA

Tomato bronze in chrysanthemum is also a danger to tomato and pepper cultivation

Inspectors from the NVWA occasionally find the tomato bronze spot virus (TSWV) in chrysanthemum. People share photos of what that looks like on Twitter. Contamination means a nuisance for the grower, because the crop is severely damaged. It is important for growers to keep thrips down as a vector of the…

The tomato brown spot virus could break out in Norwegian horticulture

A new virus threatens Norwegian tomatoes

Tomato growers in several countries have in recent years had problems with this new tomato virus, which was first found in Israel in 2014. "The virus is called Tomato brown…

Which cleaning products can cause crop damage?

Many growers use cleaning and disinfecting agents such as hydrogen peroxide and chlorine bleach. The crop can come into contact with these agents. It is not yet known which of these substances causes damage and at what concentration. That is why the Greenhouse Horticulture and Flower Bulbs Business Unit…

Study on biocontrol use of Paenibacillus xylanexedens for management of hairy root disease in tomatoes

Hairy root disease (HRD) caused by rhizogenic Agrobacterium biovar 1 strains affect tomato, cucumber, eggplant, and bell pepper grown in hydroponic greenhouses and can cause…

New guide on identifying and managing devastating pest insects around the world

Technology that was first used to distinguish healthy tissues from cancerous ones in humans has been successfully used to identify insects. Every year insect pests cause…

University of Illinois / Montgomery Flack

US: Genome sequenced for pesky pumpkin pathogen

Pumpkin growers dread the tiny tan scabs that form on their fruit, each lesion a telltale sign of bacterial spot disease. The specks don’t just mar the fruit’s flesh — they provide entry points for rot-inducing fungus and other pathogens that can destroy pumpkins and other cucurbits from the inside out.…

Eurasian economic union to take measures to prevent spread of crop diseases

The heads of government of the Eurasian Economic Union (EAEU) member states have decided to take coordinated measures to prevent the introduction and spread of three crop diseases: tomato brown rugose fruit virus, Pepino mosaic virus, and tomato spotted wilt virus in the EAEU. The appropriate decision…

Mitsui & CO complete the first stage of their acquisition of Belchim Crop Protection

Mitsui has announced the completion of the first stage of its acquisition of Belchim Crop Protection from Belchim's founder, Belchim Management NV/SA), through Mitsui’s…

Syngenta expands arsenal in the global battle against a tomato virus

New ToBRFV resistant tomato variety showcased

With the introduction of a new beefsteak tomato, the Barosor, Syngenta now has two tomato varieties resistant to the highly transmittable Tomato Brown Rugose Fruit Virus (ToBRFV). The virus, which first emerged in Israel in 2014, has spread to fields and greenhouses across the Middle East, Europe,…

Bee-Coat helps optimise pollination in cooler conditions

Bumblebees are widely used in strawberry crops to boost yields and improve fruit quality. In crop cultivating in tunnels, pollination rates can dip during cooler spring periods. Now, thanks to our Bee-Coat – warm jackets for individual hives –  bumblebees can be kept warmer improving their performance. Bumblebees remain…

Update on the situation of tomato brown rugose fruit virus in the Netherlands

Tomato brown rugose fruit virus (Tobamovirus, ToBRFV – EPPO A2 List) was first detected in the Netherlands in October 2019 in one greenhouse on tomato (Solanum lycopersicum)…

Rijk Zwaan spinach variety scores well in Stemphylium vesicarium research

Dutch spinach makes an impression in Washington State University study

In the space of just a few years, the fungus Stemphylium – and in particular Stemphylium vesicarium – has become one of the biggest challenges for spinach growers worldwide. Rijk Zwaan’s spinach breeding programmes are focused on developing varieties that are resistant to this fungus. The initial results…

Damage to harvest carts leads grower to choose UV disinfection

Due to the pressure caused by the current pandemic, many growers want to thoroughly disinfect their harvest carts, one of whom is Brian Leenders of Van Gog Plant Nursery. However, at the start of the year, he decided things were going to be different. The reason: damage to the harvest carts. The…

Photo by Scott Isard

Innovative university platform monitors pests and predicts problems

In the fall of 2004, researchers on a soybean farm near Baton Rouge, Louisiana, were surprised to discover a multitude of soybean plants on which leaves had developed reddish-brown lesions. The culprit soon was identified as Asian soybean rust, an aggressive and destructive disease of soybean that had…

Study on rapid and sensitive detection of ToBRFV in tomato and pepper seeds

Tomato brown rugose fruit virus (ToBRFV) represents an emerging viral threat to the productivity of tomato and pepper protected cultivation worldwide. This virus has got the…

"Pay attention to the operating mechanism of products to prevent resistance”

As a grower, you would rather not have any pests in your greenhouse at all. Luckily there are products you can use in case you do have to deal with such a situation. But what if such a pest develops resistance against the product you are using? "For starters, let’s look at what causes resistance. Insects…

US: Additional nursery reported as source of Neopestalotiopsis in strawberry

As an update to the previous posts on this new disease of strawberry, there is now an additional nursery implicated in the spread of Neopestalotiopsis. This nursery, located…

US: Neopestalotiopsis now causing major damage in Georgia strawberries

What a difference a month can make. One month ago, nobody was seeing major issues with Neopestalotiopsis, the new disease of strawberries that have caused headaches for Florida strawberry production. Unfortunately, just as in Florida, the more aggressive form of Neopestalotiopsis is causing damage on…

"Beetles that pee themselves to death could be tomorrow’s pest control"

Various beetle species have gobbled through grain stores and weakened food production worldwide since ancient times. Now, researchers at the University of Copenhagen have discovered a better way of targeting and eliminating these teeny pests. Instead of using toxic pesticides that damage biodiversity,…

Denomination of two new races of downy mildew in spinach

Two new races of the downy mildew pathogen (Peronospora effusa) on spinach have been denominated by the International Working Group on Peronospora in spinach (IWGP) on the basis of a worldwide evaluation of isolates from growers fields and trap nurseries. Isolate SP1924 found in Europe, is denominated as…

"Spider mites in tomatoes no match for Phytoseiulus-System"

Two-spotted spider mite can be a challenging and persistent pest in glasshouse tomato crops – but it’s no match for our Phytoseiulus-System. “The voracious predator Phytoseiulus persimilis eats all stages of the pest, getting hotspot quickly under control," says Biobest advisor, Nick Nagels. “Now…

Walmart introduces restoring pollinator habitat program

Imagine mornings without orange juice or summer picnics without strawberries. Such a future is possible if we don’t take collective action to begin restoring pollinator…

Project seeks science-based interventions to persistent Listeria strains

Martin Wiedmann likes to compare produce facilities’ attempts to identify and manage resident strains of the foodborne pathogen, Listeria monocytogenes, as “seek and destroy”…

EFSA presents data on pesticide residues detected in food

According to the latest report published by the European Food Safety Authority (EFSA), the non-compliance rate for pesticides in foods decreased in 2019. For 2019, 96.1…

ToBRFV: first trial results confirm high resistance level

In 2020, Enza Zaden announced the discovery of the tomato brown rugose fruit virus (ToBRFV) High Resistance gene, a complete solution for ToBRFV. Since the announcement, we've worked hard with resistant trials material achieving excellent results. “We see no symptoms at all in the plants, while the…

NZ: ToBRFV update

Following the early detection of the unwanted virus, the tomato brown rugose fruit virus in a small tomato seed lot last year, a group of growers, GIA industry partners, and Biosecurity NZ met in…

Hoverfly Eupeodes-System boosts aphid control in organics

"One single larva can eat up to 1000 harmful aphids"

Aphid control in organic crop production at Murgiverde SCA, in Andalusia, has been significantly improved following the addition of the new Eupeodes-System to the existing control strategy. Generalist predatorIndigenous to Europe, Eupeodes corollae is a generalist predatory hoverfly feeding on all…

Standard UV dose also effective against ToBRFV in drain water

Research performed by laboratory Groen Agro Control and Van Remmen UV Technology confirms the effective killing of Tomato brown rugose fruit virus (ToBRFV) in drain water by ultraviolet (UV) light. Tomato growers usually use a UV dose of 250 mJ/cm2 for the disinfection of drain water. That dose now also…

Photo by Heidi Lindberg, MSU Extension

Greenhouse disease and insect management recommendations for 2021

Michigan State University Extension has updated their insect and disease management recommendations for the 2021 greenhouse season. There have been some changes from the previous 2020 recommendations. These recommendations are updated yearly to reflect efficacy of pesticides as MSU Extension specialists…

New Delhi resistant zucchini variety launched

At the end of 2021, HM.Clause will complement its range of products with four new varieties of zucchini “NO-ND – New Delhi resistance”. They are specially designed for the Mediterranean region and they are suitable for diverse agronomic and climate conditions. Besides this strong resistance, the “NO-ND –…

Certis Europe expands with biostimulants

Certis Europe branch in Spain has reached a distribution agreement with the French multinational Agrauxine for the commercialization of its biostimulants in Spain. Agrauxine…

France: the Savéol cooperative on all fronts

Savéol has developed a range without pesticides for its tomatoes and complied with the requirements of the Agec ban from January 1st, 2022 by creating 100% cardboard…

"Economical and better biocontrol of aphids, mealybugs and Echinothrips"

By using an earlier phase of lacewing - the natural enemy of aphids, mealybugs, and Echinothrips – growers can now tackle these harmful pests more effectively and economically. Continuous R&D by leading biocontrol innovator, Koppert Biological Systems, has resulted in a new product marketed under the…

Current status and breeding perspectives

Study on the global dimension of tomato yello leaf curl disease

Tomato yellow leaf curl disease (TYLCD) caused by tomato yellow leaf curl virus (TYLCV) and a group of related begomoviruses is an important disease which in recent years has caused serious economic problems in tomato (Solanum Lycopersicum) production worldwide. Spreading of the vectors, whiteflies of…

Two new ToBRFV-contamination in the Netherlands

There are two new tomato companies contaminated with the Tomato brown rugose fruit virus (ToBRFV) in the Netherlands, as became apparent from a new status update from the NVWA…

"Optimum protection with ‘New Delhi’-resistant cucumber varieties"

The ‘New Delhi’ virus has been a serious problem for many cucurbit growers, especially in the Mediterranean region, for numerous years. Due to its high infection pressure and rapid spread, this disease poses a severe threat to cucumber crops. Rijk Zwaan is proud to introduce a solution for cucumber…

Top Seeds International

The Galiano pepper showed its resistance to the extreme cold in Spain's January

Galiano, a pepper variety from Top Seeds International that is ideal for mid-late transplants, has successfully withstood the extreme cold weather that affected Spain in the first three weeks of January. The low temperatures wreaked havoc on agricultural companies, which saw their productions seriously…

Crop protection with a vacuum cleaner?

People need clean and healthy food and greenhouse-grown vegetables are a very good way of supplying them. This food then has to be protected against a variety of insects that damage either the fruits or the whole plants. Modern growers avoid the use of chemicals and rely on beneficial insects. Micothon…


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