An Extension Authorisation of Minor Use (EAMU) has been granted for Karma (MAPP 16363) to control powdery mildew in tomato, pepper, chilli and aubergine crops in the UK.
This follows a recent AHDB gap analysis survey, which highlighted a shortfall in crop protection products with short harvest intervals for the protected vegetable sector.
Selchuk Kurtev explains why this EAMU has come as a welcome relief for growers in the industry.
“Protected vegetables, such as tomatoes, are typically harvested almost continuously throughout the year. As a result, growers need flexible products with short harvest intervals, to allow for a quick turnaround during harvest at multiple points during the season,” explains Mr Kurtev.
“Karma (potassium hydrogen carbonate) has a one-day harvest interval, and can form an important part of anti-resistance strategies, as a result of its three-way mode of action.
“This EAMU is key for glasshouse growers, as Karma performs well in humid conditions, making it highly suitable for these situations. And, can form a successful part of well-planned IPM programmes with biological control agents.”
“We would highly recommend that growers speak to their agronomist, or to their Certis technical representative, to understand how to use the product most effectively within their crops,” says Mr Kurtev.
The EAMU reference 1299/2017, states that a maximum of 3 kg/ha should be applied in a minimum water volume of 500 L/ha with a maximum of eight treatments and one-day harvest interval. The approval is in force from 4 July 2017, and is for use on protected aubergine, pepper, chilli and tomato crops, for the control of powdery mildew.