Aphids

These small (<2 mm), soft-bodied, sucking insects cluster on growing tips or on leaves and cause wilting and yellowing. They also serve as vectors of some virus diseases affecting tomatoes.

Control
See Table 2, Tomato Insect Control.

Colorado Potato Beetle

Beetles are yellow and black striped. Larvae are reddish orange with two rows of black spots on each side. Both adults and larvae feed on the foliage. Control measures may be required in the Southern Interior. Colorado potato beetles are not known to occur at the Coast.

Control
See Table 2, Tomato Insect Control.

Cutworms

Cutworms are drab-coloured, fleshy worms up to 4 cm long which feed at night at or below ground level, or they may climb and feed on aerial portions of plants. During the day they are found in soil or under clods near attacked plants. Freshly transplanted succulent plants are especially susceptible. Heavy populations of cutworms may be expected on fields that were covered with weeds or other plant debris the previous fall.

Control
See Table 2, Tomato Insect Control.

Flea Beetles

These shiny, black jumping beetles eat holes in leaves, giving them a shot-holed appearance. Seedlings are particularly at risk of damage and death. On mixed vegetable farms and in gardens where potatoes are also grown, flea beetles on tomatoes should be controlled promptly before they spread to the potato crop.

Control
See Table 2, Tomato Insect Control.

Hornworms

These are large, (10 cm long when mature), pale-green worms with a short, red horn on the posterior end. They feed on foliage and fruit. When worms are first noticed, hand-pick and destroy them. Spot-treat if practical or under more severe conditions treat the whole field.

Control
See Table 2, Tomato Insect Control.