Time to act:
Jun, Jul, Aug, Mar, Apr, May, Sep, Oct, Nov
Turn over a leaf and you'll see 2mm long white flies. With a life cycle of just three weeks, whitefly breed very fast. Both adults and offspring are sap feeders and a severe attack will weaken a plant. They excrete the sticky excess, called honeydew, onto lower leaves where it encourages black sooty mould to grow. If left, this weakens the growth of the plant.
When you brush past your plants in the greenhouse clouds of tiny white flies fill the air.
Find it on
tomatoes, cucumbers, fuchsias, other greenhouse plants