The parasitic wasp Encarsia formosa is a very effective way to control whitefly supplied as pupae on cards which are simply hung in a shady position throughout the crop, level with the lower leaves of the plants supplied as a repeat programme of Encarsia formosa, every two weeks over a six week period to ensure the pest is continually controlled.

Whitefly Control Programme - 3 Applications from Harrod Horticultural

The parasitic wasp Encarsia formosa is a very effective way to control whitefly supplied as pupae on cards which are simply hung in a shady position throughout the crop, level with the lower leaves of the plants supplied as a repeat programme of Encarsia formosa, every two weeks over a six week period to ensure the pest is continually controlled.

PLEASE NOTE; the pest MUST be present before introducing this predator for control to be effective - please do not order beforehand. This item will now be dispatched from March Onwards

• 3 Applications per programme 
• Each application is supplied as 25 hanging cards with 60 pupae on each card - a total of 4,500 pupae per programme