Allotment Growing Shop

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. They can be 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 - Encarsia formosa 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. Whitefly Control will be most effective when temperatures are at least 18 degrees C during the day and 14 degrees C at night. Each application of encarsia is supplied on 25 hanging cards with between 60 pupae on each card - a total of 1,500 pupae.

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.

How to Apply Your Whitefly Control

• Open box in greenhouse
• Always handle cards by top to prevent damaging scales in circle
• When using in tomato and cucumber crops, hang the cards in a shady position among the foliage around 1m below the top of the plant - and space the cards evenly
• For pot plants, again evenly place the cards in a shady position level with the lower leaves but not in contact with the soil
• Use within 18 hours of receipt or keep outer box in cool place (between 5-10 degrees C)
• Never leave box, or place cards, in direct sunlight