![European pine sawfly caterpillars.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p16-european-pine-sawfly.jpg?itok=eBwfgw4Z)
![European pine sawfly caterpillars.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p16-european-pine-sawfly.jpg?itok=eBwfgw4Z)
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.
![Variegated cutworm caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p48-variegated-cutworm.jpg?itok=xZqiEQOH)
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.
![Gray furcula caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p19-gray-furcula.jpg?itok=B29z_J3V)
Caterpillars in Your Yard and Garden, Page 19
Reviewed
Gray furcula caterpillars (Furcula cinerea) are present from spring to fall. They produce two generations per year.
![Walnut caterpillars in red phase.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p51-walnut.jpg?itok=Ol_5vAat)
Caterpillars in Your Yard and Garden, Page 51
Reviewed
Red phase and black phase walnut caterpillars (Datana integerrima) are present from early May to September. They produce one to two generations per year.
![Yellow woollybear caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p54-yellow-woollybear.jpg?itok=JcKAU8LX)
Caterpillars in Your Yard and Garden, Page 54
Reviewed
Yellow woollybear caterpillars (Spilosoma virginica) are present from spring to fall. They produce two to three generations per year.
![Hackberry emperor caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p22-hackberry-emperor.jpg?itok=LJe7A6fs)
Caterpillars in Your Yard and Garden, Page 22
Reviewed
Hackberry emperor caterpillars (Asterocampa celtis) are present from early summer to fall. They produce two generations per year.
![Imperial moth caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p25-imperial-moth.jpg?itok=aKx-LZvj)
Caterpillars in Your Yard and Garden, Page 25
Reviewed
Imperial moth caterpillars (Eacles imperialis) are present from June to August. They produce two generations per year. Common host plants include oaks, sweetgum, maple, hickory, sassafras, elm and sycamore.
![Linden looper caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p28-linden-looper.jpg?itok=7F1tWM6D)
Caterpillars in Your Yard and Garden, Page 28
Reviewed
Linden looper caterpillars (Erannis tiliaria) are present from late spring to summer. They produce one generation per year.
![Pale tussock moth caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p31-pale-tussock-moth.jpg?itok=ApIFccAJ)
Caterpillars in Your Yard and Garden, Page 31
Reviewed
Pale tussock moth caterpillars (Halysidota tessellaris) are present from early summer to fall. They produce two generations per year.
![Cover art for publication G6026](/sites/default/files/styles/large/public/images/g06026cvr.jpg?itok=4XgGBCY7)
![Achemon sphinx caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-02-achemonsphinx.jpg?itok=kiu40foN)
Caterpillars in Your Yard and Garden, Page 02
Reviewed
Achemon sphinx caterpillars (Eumorpha achemon) are present from early summer to fall. They produce one to two generations per year.
![Polyphemus moth caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p34-polyphemus-moth.jpg?itok=FNjhSi4a)
Caterpillars in Your Yard and Garden, Page 34
Reviewed
Polyphemus moth caterpillars (Antheraea polyphemus) are present from May to October. They produce multiple generations per year.
![Banded woollybear caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p05-banded-woollybear.jpg?itok=OSBKl_xc)
Caterpillars in Your Yard and Garden, Page 05
Reviewed
Banded woollybear caterpillars (Pyrrharctia isabella) are present in the spring and from late summer to late fall. They produce one to two generations per year.
![Roseslug caterpillars.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p37-roseslug.jpg?itok=aWd1Rn1b)
Caterpillars in Your Yard and Garden, Page 37
Reviewed
Roseslug caterpillars (Endelomyia aethiops) are present in summer. They produce one generation per year.
![Catalpa sphinx caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p08-catalpa-sphinx-light.jpg?itok=vOQuD_c7)
Caterpillars in Your Yard and Garden, Page 08
Reviewed
Catalpa sphinx caterpillars (Ceratomia catalpae) are present from early summer to early fall. They produce multiple generations per year.
![Spicebush swallowtail caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p40-spicebush-swallowtail.jpg?itok=14ek9d9b)
Caterpillars in Your Yard and Garden, Page 40
Reviewed
Spicebush swallowtail caterpillars (Papilio troilus) are present from May to October. They produce two to three generations per year.
![Crinkled flannel moths caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p11-crinkled-flannel-moth_0.jpg?itok=pDKxCEsU)
Caterpillars in Your Yard and Garden, Page 11
Reviewed
Crinkled flannel moths caterpillars (Lagoa crispata) are present in summer and fall. They produce two generations per year.
![Stinging rose caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p43-stinging-rose_0.jpg?itok=Mwf_Av50)
Caterpillars in Your Yard and Garden, Page 43
Reviewed
Stinging rose caterpillars (Parasa indetermina) are present in summer and fall. They produce one to two generations per year.
![Eight-spotted forester caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p14-eight-spotted-forester.jpg?itok=C2_8D4Ai)
Caterpillars in Your Yard and Garden, Page 14
Reviewed
Eight-spotted forester caterpillars (Alypia octomaculata) are present from spring to early fall. They produce one to two generations per year.
![Tomato fruitworm caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p46-tomato-fruitworm.jpg?itok=Sc9B9xZu)
Caterpillars in Your Yard and Garden, Page 46
Reviewed
Tomato fruitworm, corn earworm caterpillars (Helicoverpa zea) are present in mid-June. They produce two generations per year.
![Fall webworm caterpillars.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p17-fall-webworm.jpg?itok=zlv2PLnW)
Caterpillars in Your Yard and Garden, Page 17
Reviewed
Fall webworm caterpillars (Hyphantria cunea) are present from spring to fall. They produce two to three generations per year.
![Variegated fritillary caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p49-variegated-fritillary.jpg?itok=DgCQnEKP)
Caterpillars in Your Yard and Garden, Page 49
Reviewed
Variegated fritillary caterpillars (Euptoieta claudia) are present from June to October. They produce multiple generations per year.
![Green cloverworm caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p20-green-cloverworm.jpg?itok=YZmn4XuN)
Caterpillars in Your Yard and Garden, Page 20
Reviewed
Green cloverworm caterpillars (Hypena scabra) are present from summer to fall. They produce three generations per year.
![Whitelined sphinx caterpillar.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p52-whitelined-sphinx.jpg?itok=55OmZn3u)
Caterpillars in Your Yard and Garden, Page 52
Reviewed
Whitelined sphinx caterpillars (Hyles lineata) are present from spring to early fall. They produce one to two generations per year.
![Yellownecked caterpillars.](/sites/default/files/styles/large/public/2024-01/ipm1019cvr-p55-yellownecked-caterpillar.jpg?itok=QkEXwgdp)
Caterpillars in Your Yard and Garden, Page 55
Reviewed
Yellownecked caterpillars (Datana ministra) are present from July to September. They produce one generation per year.