Sod Webworm

Scientific Name: Herpetogramma licarsisalis

Order: Lepidoptera


Sod webworm is a relatively think caterpillar up to 25mm long with a pale green-brown body that is marked with characteristic dark spots along its length. When mature the adults become a slender bodied moth with a wingspan of 2.5cm. Their wings are grey with black spots and transverse dark wavy lines.

Biology and Lifecycle

Female sod webworms moths drop their non adhesive eggs onto turf while flying at night. The eggs fall into the thatch and hatch within 10 days, depending on temperature. Peak hatching occurs in early summer and continues throughout the summer months. The eggs tend to be oval or elliptical in shape with longitudinal ridges on the surface than run from pole to pole. Upon hatching most larvae burrow into the thatch and conceal themselves with particles or debris. These larvae remain concealed during the day and wander out at night to feed. By late spring or early summer the young adult moths emerge and fly just above the turf. These moths are especially active at dusk. The entire lifecycle generally takes about 6 weeks, and in most regions this pest has 2-3 generations per year.

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Products to Use Sod Webworm

Acelepryn GR (Granule)


Outstanding season long grub control just got even better Acelepryn insecticide provides unmatched, season long grub and caterpillar control in a single…

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Tempo XTRA

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Tempo XTRA is a unique dual mode of action insecticide designed to control tough pests in Turf and Ornamental situations. In Turf,…

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Spinner turf insecticide is a highly systemic insecticide providing rapid control of insect larvae and including Stem Weevil. Spinner can be used…

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Pennside containing the active constituent 240g/L Diazinon, provides effective control against Argentine Stem Weevil, African Black Beetle, Grass Eating Caterpillars and…

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Acelepryn provides safe and effective control of a wide range of turf damaging insects while also minimising the impact on the…

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