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Tomato hornworms (Manduca quinquemaculata)
Tomato HornwormTomato Hornworm
  • Identification: They can measure up to 4 inches in length. Small tomato hornworms are yellow to white in color with no markings where large hornworms develop white, "V-shaped" marks on each side. They also have a black "horns" on their last abdominal segment. Tomato hornworm caterpillars feed initially on the upper portions of the plants destroying several leaves as well as the fruit. 
  • Plan of Attack
    • Plants should be examined at least 2x per week during the summer.
    • Keep your garden as weed free as possible, to discourage egg laying on weeds.
    • Till the soil after harvest to destroy burrowing caterpillars and pupae.

    • Most effective means of managing by handpicking hornworms from infested plants. Just throw them into soapy water to kill them.

    • There are many natural enemies of the tomato hornworm such as lady beetles and green lacewings. They prey upon the egg stage and on young caterpillars.

       

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by Ray Jess

I have seen small green larva looking bugs in my tomatoes and cannot identify them; any suggestions? Secondly but not related to bugs is that my tomato plant leaves turn brown and die not allowing water to be taken up in sufficient quantities to keep the plant thriving, suggestions?