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Unicorn caterpillar.

Caterpillars in Your Yard and Garden, Page 47

Reviewed

Unicorn caterpillars (Schizura unicornis) are present from summer to fall. They produce one generation per year.

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Garden webworm caterpillar.

Caterpillars in Your Yard and Garden, Page 18

Reviewed

Garden webworm caterpillars (Achyra rantalis) are present from late spring to fall. They produce two to three generations per year.

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Viceroy caterpillar.

Caterpillars in Your Yard and Garden, Page 50

Reviewed

Viceroy caterpillars (Limenitis archippus) are present from early summer to fall. They produce two generations per year.

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Cover art for publication IPM1019

Caterpillars in Your Yard and Garden

Reviewed

Caterpillars are some of the most easily observed insects in backyards and gardens. Learn to identify them so you will know what type of butterflies or moths they will turn into.

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Greenstriped mapleworm caterpillars.

Caterpillars in Your Yard and Garden, Page 21

Reviewed

Greenstriped mapleworm caterpillars (Dryocampa rubicunda) are present from late spring to late fall. They produce one to two generations per year.

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Tussock moth caterpillar.

Caterpillars in Your Yard and Garden, Page 53

Reviewed

Whitemarked tussock moth caterpillars (Orgyia leucostigma) are present from May to October. They produce two generations per year.

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Hickory horned devil caterpillar.

Caterpillars in Your Yard and Garden, Page 24

Reviewed

Hickory horned devil caterpillars (Citheronia regalis) are present from July to October. They produce two generations per year.

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Zebra swallowtail caterpillar.

Caterpillars in Your Yard and Garden, Page 56

Reviewed

Zebra swallowtail caterpillars (Graphium marcellus) are present from May to November. They produce two to three generations per year.

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Io moth caterpillar.

Caterpillars in Your Yard and Garden, Page 27

Reviewed

Io moth caterpillars (Automeris io) are present from July to October. They produce two generations per year.

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Orangedog catterpillar.

Caterpillars in Your Yard and Garden, Page 30

Reviewed

Orangedog caterpillars (Papilio cresphontes) are present from July to October. They produce two generations per year. They are considered a pest to citrus trees.

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Spider mite.

Least-Toxic Control Methods to Manage Indoor Plant Pests

Reviewed

This publication discusses some of the least-toxic control options you can use for pests of houseplants, home greenhouses and interior plantscapes.

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Pickleworm caterpillar.

Caterpillars in Your Yard and Garden, Page 33

Reviewed

Pickleworm caterpillars (Diaphania nitidalis) are present from summer to fall. They produce two to three generations per year.

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Cover art for publication G7276

Twig Girdler and Twig Pruner

Reviewed

Twig Girdler and Twig Pruner are long-horned beetle species that attack numerous types of valuable trees. Visit our website to learn more.

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Cover art for publication G6030

Home Fruit Production: Peach and Nectarine Culture

Revised

Peach and nectarine trees require considerable care, so cultivars must be carefully selected. Get tips for growing these fruits — including how many trees to plant, how to train and prune them, and how much to water them — in this guide.

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Bagworm caterpillar bag hanging from a branch.

Caterpillars in Your Yard and Garden, Page 04

Reviewed

Bagworm caterpillars (Thyridopteryx ephemeraeformis) are present from early June to August. They produce one generation per year.

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Red-spotted purple caterpillar.

Caterpillars in Your Yard and Garden, Page 36

Reviewed

Red-spotted purple caterpillars (Limenitis arthemis) are present from early summer to fall. They produce two generations per year.

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Cover art for publication G7360

Boxelder Bug

Reviewed

Richard Houseman
State entomology extension specialist

Bruce Barrett
State entomology extension specialist

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Cabbage looper caterpillar.

Caterpillars in Your Yard and Garden, Page 07

Reviewed

Cabbage looper caterpillars (Trichoplusia ni) are present from late spring to fall. They produce two to three generations per year.

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Smalleyed sphinx caterpillars.

Caterpillars in Your Yard and Garden, Page 39

Reviewed

Smalleyed sphinx caterpillars (Paonias myops) are present from May through September. They produce multiple generations per year.

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Clearwinged sphinx caterpillar.

Caterpillars in Your Yard and Garden, Page 10

Reviewed

Clearwinged sphinx caterpillars (Hemaris diffinis) are present from April to September. They produce two generations per year.

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Stalk borer caterpillar.

Caterpillars in Your Yard and Garden, Page 42

Reviewed

Stalk borer caterpillars (Papaipema nebris) are present from May to August. They produce one generation per year.

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Eastern tent caterpillars.

Caterpillars in Your Yard and Garden, Page 13

Reviewed

Eastern tent caterpillars (Malacosoma americanum) are present from early spring to June. They produce one generation per year.

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Tobacco hornworm caterpillar.

Caterpillars in Your Yard and Garden, Page 45

Reviewed

Tobacco hornworm caterpillars (Manduca sexta), left, and tomato hornworm caterpillars (Manduca quinquemaculata), below, are present from June through September. They produce two or more generations per year.

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European pine sawfly caterpillars.

Caterpillars in Your Yard and Garden, Page 16

Reviewed

European pine sawfly caterpillars (Neodiprion sertifer) are present in spring and summer. They produce one generation per year.

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Variegated cutworm caterpillar.

Caterpillars in Your Yard and Garden, Page 48

Reviewed

Variegated cutworm caterpillars (Peridroma saucia) are present from late spring to early summer. They produce two to four generations per year.

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