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Broadway Road, Phoenix, AZ 85040, (602) 470-8086 ext.Save $10 off your first purchase of $50 or more in Pharmacy. To Gardening and Landscaping in Maricopa County, AZĬollege of Agriculture and Life Sciences ,Ĭomments to E. Bt ( Bacillus thuringiensis) and other insecticides may also be used to control hornworms. Handpicking is an effective control in small gardens. Kill the hornworms when they emerge from the cocoons and will seek out other Projections are seen, leave the infected hornworms in the garden. The cocoonsĪppear as white projections protruding from the hornworm's body. On the inside of the hornworm until the wasp is ready to pupate. For example, the bracoind wasp, lays eggs on the caterpillar, the larva hatch and feed There are a number of insects that parasitize hornworms. Hosts: Tomato, eggplant, pepper, Sacred Datura/Jimson weed and other members of the Solanaceae family.ĭamage: The larva is the damaging stage and feeds on the leaves and stems of the plant leaving behind dark green or black droppings. Both of these moths are sometimes called hummingbird moths because with their five inch wingspan and gray colored stout body they can be mistaken for a hummingbird The Five-spotted Hawk Moth is the adult of the tomato hornworm. The adult of the tobacco Hornworm is a large, beautiful, fast-flying Sphinx moths. It eventually will burrow into the soil to pupate. The coloration of this larva causes it to blend in with its surroundings and is often difficult to see despite its large size. Though initially quite small with a body about the same size as its horn, these insects pass through 4 or 5 larval stages to reach full size in about a month. The tomato hornworm has eight curved or 'V' shaped stripes and frequently the horn is black. The Tobacco Hornworm has seven diagonal light stripes on the side with commonly a red horn. Larvae are a 3 1/2 or more inch long, smooth, pale green green caterpillar with 5 pairs of prolegs and a 'horn' at the end of the last segment. Hornworm/Sphinx Moth Scientific name: TOBACCO HORNWORM Manduca sextaĪnd the TOMATO HORNWORM, Manduca quinquemaculata Gardening & Landscaping in the Low Desert Maricopa County Cooperative Extension Home Horticulture:

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