![]() They will also seek out other hornworms to feed upon and kill. The wasps will kill the hornworms when they emerge from their cocoons. Such “host” hornworms should be left in the garden in order to conserve the beneficial parasites. Larvae that hatch from the wasp’s eggs, which are laid on the hornworm, feed on the inside of the hornworm until the wasp is ready to pupate. The white projections are the larvae of the braconid wasp, Cotesia congregatus. However, if the worm has white ovals on its body, you should take no action at all. Worms should be picked from plants, and dealt with as your conscience permits. It can devour an entire plant in a matter of days. This Manduca quinquemaculata feeds on the leaves and stems of tomato plants, as well as other plants in the Nightshade family, like eggplant and potatoes. What this worm is, why it has white projections on its body, and why - if you ever see such a thing in your own garden - you should leave it alone:Ī quick Google search revealed the odd fellow is the Tomato Hornworm. RECENTLY, while pruning a row of paste tomatoes, I noticed a strange-looking worm ( above click to enlarge) on one of the plants.
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