In the evening or early morning when sunlight is less direct, the caterpillars will feed on more distal leaves. Females prefer to oviposit on young leaves near the stem of host plants, and early instar caterpillars can often be found here during the day.

Tomato hornworms are known to eat various plants from the family Solanaceae, commonly feeding on tomato, eggplant, pepper, tobacco, moonflowers and potato. The tobacco hornworm, a close relative of the tomato hornworm, tends to dominate the south while tomato hornworms are more prevalent in the northern United States. quinquemaculata is found across North America and Australia. Because of this, the plant on which the caterpillar is found does not indicate its species. This confusion arises because caterpillars of both species have similar morphologies and feed on the foliage of various plants from the family Solanaceae, so either species can be found on tobacco or tomato leaves. Tomato hornworms are closely related to (and sometimes confused with) the tobacco hornworm Manduca sexta. The caterpillar, often referred to as the tomato hornworm, can be a major pest in gardens they get their name from a dark projection on their posterior end and their use of tomatoes as host plants. Manduca quinquemaculata, the five-spotted hawkmoth, is a brown and gray hawk moth of the family Sphingidae. Protoparce quinquemaculatus wirti Schaus, 1927.'It’s pretty remarkable when they unroll it. “They tend to feed on very deep-throated flowers, although they can use it on shallow flowers, as well,” Elsner says. And their proboscis is almost as long as their wingspan. In the spring, a tomato hornworm emerges as a five-spotted hawkmoth, with a wing span as wide as six inches. They hover like hummingbirds while drinking nectar.

“I’d always take a fair share of them home and raise them, try to get some adults, since I was into moths and butterflies from a very young age,” he says. “It’s remarkable how many survive at all in this world,” says the retired MSU Extension educator.Īs a kid on his uncle’s tomato farm, Elsner would help squash hornworms but not all of them. Then they have to get back out as a moth. They pupate underground, six inches underground. Duke Elsner says that’s amazing since caterpillars aren’t really built to tunnel.

While no gardener welcomes a tomato hornworm-they eat twice their weight in leaves each day-they are impressive creatures.

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