![]() ![]() ![]() Colorado potato beetle – Yellowish-brown, oval, convex beetle up to 14 mm long with 5 black longitudinal stripes on each wing cover and several black spots on the pronotum (area behind the head) ( Figure 7) feeds on leaves and terminal growth.Cabbage looper – Green caterpillar with longitudinal white stripes body up to 30 mm long, tapers toward the head 3 pairs of legs near head 3 pairs of fleshy prolegs ( Figure 6) young larva on underside of leaf consumes tender leaf tissue leaving most veins intact.Blister beetles – Several species of slender, elongate beetles up to 19 mm long have prominent heads bodies variously colored but usually black ( Figure 5A), black with yellow margins ( Figue 5B), or black and yellow striped ( Figure 5C) stringy black excrement on heavily infested plants foliage ragged plants sometimes stunted.Chewing pests that make holes in leaves.Vegetable leafminer – Colorless to bright yellow maggot, up to 3 mm long, with pointed head makes serpentine mines in leaves each mine slightly enlarged at one end ( Figure 4).Tomato pinworm – Young yellowish-gray larva only a few millimeters long, making blotch mines in leaves older yellow, green, or gray, purple-spotted larva up to 8 mm long ( Figure 3), folding leaves and webbing them together, or boring into stems, buds, and fruit fruits with pinholes and discolored blotches.Tobacco budworm – This caterpillar is similar to the tomato fruitworm except mature worms are somewhat smaller and slightly more slender than tomato fruitworms ( Figure 2) in addition, the microscopic spines on the skin of tobacco budworms are more slender, longer, and occur closer to the setae (hairs).Tomato fruitworm – Early instars: cream colored or yellowish-green with few markings later instars: green, reddish, or brown with pale stripes and scattered black spots moderately hairy up to 44 mm long 3 pairs of legs, 5 pairs of prolegs ( Figure 1) holes are chewed in fruits and buds.Pests that mine leaves or bore into fruits and / or buds.Even in screened greenhouses, armyworms, fruitworms, and loopers may be brought into the greenhouses on plants. Occasionally moths enter through holes in screens or fans and lay eggs in the greenhouse. Tiny pests such as aphids, whiteflies, leafminers, and spider mites are more likely to infest greenhouse crops than beetles, grubs, or caterpillars. Greenhouse tomatoes have many of the same pests as field tomatoes. However, severe damage may result either from their feeding on the fruit or by spreading certain diseases. In the field, flea beetles, aphids, leafminers, stink bugs, and fruitworms cause minimal damage to the foliage. Aphids, flea beetles, leafminers, and spider mites threaten young plant-bed tomatoes. Tomatoes are subject to attack by a large number of insect pests from the time plants first emerge in the seed bed until harvest. Key to Tomato Pests Skip to Key to Tomato Pests ![]()
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