Tomato hornworms are a highly destructive pest of tomato plants, but they have predators you can encourage in your garden.

As tomatoes grow tall and the yellow flowers slowly turn into small round tomatoes, another unexpected creature may appear: ...

While it can be devastating to see the tomato plants you've lovingly cultivated destroyed overnight by hornworms, there's a good reason to avoid killing them.

Several types of caterpillars damage tomato plants in Missouri, but the tomato hornworm and the tobacco hornworm usually get the most attention because of the prominent horn on the last segment of ...

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?<br ...

Injured tomato plants can induce caterpillars to become cannibals. Injured tomato plants can induce caterpillars to become cannibals. John Orrock Plants are often seen as taking a passive role in ...

Tomato plants induce this reaction to protect themselves, but in doing so, they lose great portions of energy. It takes a serious onslaught of caterpillars to provoke a response like that.

Caterpillars are known to turn on each other for sustenance when the going gets rough, and by making themselves unpalatable, the tomato plants encourage this behavior. Cannibalistic caterpillars and ...

Control caterpillars: Caterpillars will feed on the foliage and flowers of ornamentals and the foliage and fruit of vegetables. The tomato fruit worm eats holes in tomatoes. Spinosad, BT (both ...

In the caterpillar-versus-plant fight, the winner might seem obvious. One side sits motionless in the sun, while the other feasts on it. But the tomato plant has a nefarious defense strategy. In ...

By Denise Ellsworth, OSU Extension This tomato hornworm was on my tomato plants. What are the white eggs on its body? What you see on the caterpillar aren't eggs. But first a bit about this pest.

Tomato plants induce this reaction to protect themselves, but in doing so, they lose great portions of energy. It takes a serious onslaught of caterpillars to provoke a response like that.