Sam advises to make sure there are Bug-scan yellow sticky traps in those areas where the first whiteflies tend to be seen, for example in the vicinity of warm corners or doors. Sticky traps contain glue but are entirely free of toxic chemicals. In addition to monitoring whiteflies, they also allow to detect a number of other pests.
The tomato leafminer (Tuta absoluta) is another serious enemy. This moth is a permanent threat in tomato crops and can be monitored and caught using the Tutasan watertrap. Biobest recommends this trap in combination with pheromone dispensers to lure the insects. Sam points out that the Tutasan trap mainly attracts the males. He recommends growers to combine the use of the trap with black sticky traps. “These traps will catch both males and females,” says Sam. “The black sticky traps are most effective if placed horizontally on a white background. This increases the contrast and allows to achieve the highest number of Tuta catches.”
Finally, as for caterpillars, Sam recommends growers to use Delta traps. “These traps, which use pheromones, will attract the male moths (the adults of the caterpillars). Biobest has a broad range of specific pheromones for different caterpillar and looper species. But watch out: pheromones are host-specific, so it is important to use the pheromones corresponding with the species they expect to be present in their crops.” Sam advises to use at least two Delta traps per ha.
For more information
Biobest Belgium NV
Ilse Velden 18
2260 Westerlo - Belgium
T +32 14 25 79 80
F +32 14 25 79 82