Q How do I know tomato moth is attacking my plants?

A Tomato foliage and fruits may be attacked. Initially the small, young caterpillars of tomato moth tend to graze on the surface of new foliage close to the greenhouse glazing. They increase in size to 3.5cm or so, and may eat holes in the leaves or even tunnel into unripe fruits. You may find a mature brownish or greenish caterpillar within a fruit. Look out for their droppings on leaves.

It's not a common pest and may not be seen for several years, but keep an eye out for signs of attack.

Caption: Go out in the evening to find the caterpillars and pick them off

Q What can I do if tomato moth damages my plants?

A Consider spraying with a biological control nematode for caterpillars, or spray with a suitable insecticide. Alternatively pick off the caterpillars by hand. You may find they are easier to find in the evening.

Q How can I prevent tomato-moth damage?

A Check plants regularly and remove small caterpillars promptly so they can't continue to feed and cause damage.