RED SPIDER MITE - A pale mottling can be seen on the upperside of the leaves. Tiny red mites (hence the name) can be seen on the underside. Spray thoroughly with MALATHION or derris, and keep the leaves well misted with water.
APHID - A common problem both in the greenhouse and outside. Spray with permethrin or heptenophos at the first sign of attack.
WHITEFLY - A serious problem mainly with greenhouse crops. Can cause many crops to be lost. No real control with chemicals can be achieved. Hang up several yellow Greenhouse Flycatcher cards to aid their removal.