Diglyphus Isaea - Parasitic wasps - 250 per container
Type: Parasitic wasp.How it works: The wasp lays its eggs next to the Leafminer larvae, damage ceases immediately as the larvae are paralysed. The wasp parasite larvae then feed on the Leafminer larvae. Adult females kill & feed directly on small Leafminer host larvae that are too small to support a developing parasite larva.
When to use: Ideal for use from mid-February in heated crops & April in unheated crops. Establishment will only occur if the wasp is released when sufficient numbers of reasonable sized larvae are present within the crop.
Species controlled: Liriomyza (Tomato Leafminer) & Phytomyza (Chrysanthemum Leafminer).
Rates of use: 1 wasp per 1 m2 every week for 3 to 4 weeks.