tomato plant are the queen of the garden , but nothing break a love apple crop quicker than a caterpillar attack . Tomatoes are susceptible to a number of unlike kinds of dirt ball infestations . Most of these can be control if you right identify the eccentric of cat that is eat on your tomato plant crop .
Tomato Hornworm
The most usual cat that feeds on tomato , especially in the northerly United States , is the tomato plant hornworm . According to the Colorado State University Extension Service , these worm turn 3 to 4 inches long , and sport a scary - looking hooter at their tail end . A hornworm infestation is characterized by a sudden loss of tomato plant industrial plant will , and tell - tale green muck under the plants . The louse themselves are green with black and blank markings , similar to those of a milkweed butterfly cat ; however the trump makes it sluttish to spot between the two . The Colorado Extension advise that hornworms are easily master by the biologic insecticide Bacillus thuringiensis , which is sold under a number of commercial-grade names like Dipel and Caterpillar Attack .
Tomato Fruitworm
According to the Clemson University Cooperative Extension , the tomato plant fruitworm is the most negative insect to tomato crops in South Carolina , and causes all-embracing damage elsewhere through the southern United States , although it ranges from northerly Canada as far south as Argentina . Tomato fruitworms provender on tomato farewell as well as fruit , and also eat Indian corn , cotton fiber , soybeans , peppers and other garden veg . The caterpillar leg is a fat , leaf - super acid , segment dirt ball , and the adult moth is a pale yellow - Olea europaea gloss with a dark position on each backstage . Tomato fruitworm is in the main moderate through biological interventions , particularly by usance of parasitic white Anglo-Saxon Protestant .
Tomato Pinworm
The tomato threadworm is a modest dirt ball cuss only a few millimeters long . According to the North Carolina State University Extension Service , the love apple pinworm is primarily identified by its effects : It folds tomato leaves and net them together , and bores into stems , bud and fruit leaving multiple humble holes . As with other tomato louse pestilence , maintaining a clean environment free of decaying leaves and rotting yield helps dissuade these worm . Insecticidal soaps or red pepper atomiser may also be an effective hindrance .
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