Q: I have big caterpillars on my tomato plants. One is green and has many white seed-like things all over it. Today I saw a dead, black caterpillar with seed-like things all over it. What goes?

Feeding damage generally begins on the upper leaves of tomato plants. The caterpillars often leave dark greenish-black droppings on the foliage. Under rapid-drying conditions, spray plants with ...

Scientists sprayed tomato plants with methyl jasmonate to kick off these responses, then unleashed caterpillars on them. Compared to an untreated plant, a high-dose plant had five times as much ...

This frass is comparable to the size of the caterpillar. The bigger it gets, the bigger the black pellets of waste get.

Question: My tomato plants are producing lots of fruits but the caterpillars are eating them and the leaves. I try not to use chemicals. Will soap sprays do? Answer Maybe if you hit the ...

A platoon of caterpillars, young and hungry, descend on a defenseless tomato plant to feast, but as they begin to eat something goes terribly wrong. The leaves no longer satisfy, and they turn on each ...

Various types of caterpillars feed on virtually every part of the plant. They bore into stems and trunks (peach tree borer, squash vine borer), they eat fruit (tomato fruit worm), and they can ...

Watch for the nymphs, which have small orange bodies and black legs ... on other plants such as passionflower vine blooms, but milkweed is the only plant on the monarch caterpillars' menu.