Whitefly in the greenhouse. This tiny parasitic wasp lays its eggs in young whitefly, killing them & hatching to build a new population. Supplied as black pupae on cards. Apply April-August (when air temperatures are 16-20°C, night & day). Pack of 500 (to treat 50m²). Pack contains living organism, & should be kept refrigerated on arrival, & used before the expiry date, Approx. 3 to 4 weeks from date of despatch. Please note
- this Biological Pest Control product will only be delivered shortly before or during the stated application periods. Please allow 7-10 days for delivery. (Please note: This product is not available in Eire.)