Category Archives: Natural enemies

How to check for parasitism in whitefly populations.

By admin | Published: February 22, 2010
We have fielded numerous enquiries this week from consultants who would like to assess levels of whitefly parasitism. This is achievable in the field with the use of a hand lens. Parasitism levels appear to be a little down from last year, but still good levels have been recovered. Parasitism so far has ranged from 50-90% [...]
Also posted in Silverleaf whitefly | Leave a comment

Friendly fighter conquers foe

By admin | Published: November 30, 2007
Microplitis demolitor is just one of many friendly fighters that battle to contain numbers of one of our most important pests, the corn earworm, Helicoverpa armigera. Corn earworm on grain sorghum is making its presence felt and many crops are being sprayed with Helicoverpa nucleopolyhedrovirus (NPV) to control above-threshold infestations of caterpillars. The current high value of [...]
Also posted in Sorghum | Leave a comment