Whitefly
Trialeurodes vaporariorum
This description was machine-translated.
How to spot it
The whitefly is a heat loving sap sucker that appears above all in the greenhouse and on container plants: larvae and pupae sit on the undersides of the leaves, and when the plant is knocked the white adults fly up in a cloud. Their sticky honeydew coats leaves and fruits and is colonised by black sooty mould; badly infested plants turn yellow and struggle. They can also transmit viruses.
Prevention
Check bought in young plants before setting them out and hang yellow sticky traps above the crop to monitor the start and strength of the flight and to catch the adults. Ventilate well against heat build up and, if there is an infestation, introduce the parasitic wasp Encarsia formosa as a biological antagonist; a strong jet of water aimed at the undersides of the leaves also washes off larvae and eggs.
Affected plants
These plants in our database are especially susceptible.
Not sure what is wrong with your plant?
Take a photo and let the AI diagnosis identify diseases and pests.
Start photo diagnosis