sweet potato hornworm life cycle

This highly variable caterpillar is commonly called the Sweet Potato Hornworm and according to Bill they feed on plants in the Convolvulaceae. 8-16 2nd inst12-21 3rd inst15-26.

Sweetpotato Hornworm

Sweet potato hornworm larva Agrius convolvuli.

. Larvae live for 10-35 days before pupating. They hatch in about 4 days. The hornworm larva starts feeding immediately upon hatching and grows throughout the summer as it undergoes 5-6 instars reaching maturity within 3-4 weeks.

35 40 days in summer 5 8 generations a year 75- 90 eggsfemale Egg. Pupa of sweet potato hornworm larva Agrius convolvuli. This is mainly a neotropical species and the adults migrate north to Canada and south to Patagonia and the Falkland Islands.

The second generation of adults emerges about 2 weeks later. The pupal stage will last for 7-28 days. Sweet potato hornworm larva Agrius convolvuli.

During summer the entire life cycle is often completed in 30 days. Larvae are green with a distinct horn on the top of the tail end. The weevil required 30 and 315 days to complete its life cycle in Awassa and Nazreth respectively.

The greenish eggs which are spherical measuring 1-2 mm diameter are laid singly on the leaves and stems. Harvest times for sweet potatoes are dependent on growing degree-days and range from 76 days to more than 110 days for the same variety grown in southeast Georgia. The appearance of the larva is variable the body color ranging from light green or brown to almost black.

The larva then drops to the soil near the base of the plant burrows 4-6 inches down and pupates. The biology of sweet potato weevil was studied in Awassa and Nazreth Research Centers. Agrius cingulata Sweet Potato Hornworm Pink Spotted Hawkmoth is a species of Lepidoptera in the family sphinx moths.

This is a Hornworm in the family Sphingidae and we believe it is the caterpillar of a Pink Spotted Hawkmoth Agrias cingulata also known as the Sweet Potato Hornworm. It can also be found in the Galápagos Islands and Hawaii. They resume activity in spring and begin to deposit eggs in soil near host plants.

Egg larva pupa and adult. Sweet potato hornworm moths are present from June to September. Sweet potato weevil Cylas formicarius Fabricius Coleoptera.

They eat the leaves often right down to the leaf stalk. Life cycle The weevil has a life cycle of four stages. 5-12 days Ist inst.

Symptoms Life Cycle The caterpillars do the damage. Eggs are laid singly on the lower surface of leaves. Sweet Potato Hornworm Pink Spotted Hawkmoth.

A few days later eggs hatch. Newly emerged grubs feed for about 3 weeks before pupating in the soil. Head capsule widths are about 051018 32 and 60 mm respectively.

Frequently they are found at the shoot tip preferring young succulent leaves. Note colours range from green brown to black. Larvae feed on plants in the Convolvulaceae family especially Ipomoea batatas sweet potato and in the Solanaceae family especially Datura.

I also have a garden devoted to many native plants. Generally it is recommended to begin periodically test-digging short 50- to 100-foot sections of rows late in the season. There are five instars and the larvae attain a length of about 115 mm at maturity.

Though Bill Oehlkes very comprehensive Sphingidae of the Americas website does not have a color match to your specimen we nonetheless suspected that this was the larva of the Pink Spotted Hawkmoth Agrius cingulata. I do have container tomato plants nearby but havent seen a brown hornworm before. Duration of the larval stage is about 30-60 days depending on temperature.

They are active at night. The eggs hatch in approximately one week and larvae begin feeding on foliageThe larvae of both species feed for 3-4 weeks molt five times and may reach 4 inches in length and 12 inch in width when fully ground. Found this Hornworm on our patio this morning after a thunderstorm last night.

Sweet Potato Hornworm. After 5-14 days depending on the environmental conditions the egg will hatch. After mating the female lays its egg on the tuber or on the leaf.

It feeds during the day and the night on sweet potato Ipomoea batatas Datura species and other plants. It is known as a pest of sweet potato. The weevil spends its entire life cycle on the host plant and both larval and adult stages damage the tubers and vinesSorensen 2009.

According to the Sphingidae of the Americas website. Life Cycle Hornworms overwinter in the soil as hard-shelled brown pupae. The larvae hatch a week later and feed on foliage and fruit for three to four weeks until reaching full development.

A pale brown head. About 30 days Life cycle. Individuals can grow to 1075 mm.

Larvae feed on the foliage for about three weeks and then they burrow into the soil where they pupate. They visit flowers of papaya morning-glory papaya and Prickly Pears. Several generations per year are possible.

August 2014 Plano Texas. The wingspan of this moth can reach 12 cm. Large adult moths known as sphinx or hummingbird moths emerge in May or June and deposit spherical green eggs on the undersides of leaves of host plants.

Note colours range from green brown to black.

Pests Of Sweetpotato Nc State Extension Publications

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Sweetpotato Hornworm

My Hawaii Nature Journal Hawaii Nature Journal

Sweet Potato Hornworm Pink Spotted Hawkmoth Encyclopedia Of Life

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Pests Of Sweetpotato Nc State Extension Publications

Sweet Potato

Pests Of Sweetpotato Nc State Extension Publications

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