What you will see
Sticky honeydew on leaves, black sooty mould and tiny white winged insects.
The source says: it is among the crops highly susceptible to whiteflies.
When to look
Outdoors mainly in warm summers, under glass throughout the growing seasonHow to protect
- Prevention
- Inspect new plants and, if possible, quarantine them.
- Get rid of unneeded plants from the greenhouse so the whitefly has fewer hosts.
- By hand throughout the growing seasonYellow sticky traps are for monitoring, not a major control measure.
- Biological early, before a heavy infestationParasitic wasps (from a biological control supplier) attack whitefly larvae; release them early, before plants are heavily infested. Parasitised larvae turn black.























