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Prevention TreeHelp Bug Band Gypsy Moth Trap Control BTK Biological Insecticide

Identification

	Gypsy Moth Pupae
	Male Gypsy Moth
	Female Gypsy Moth
Images courtesy of the USDA Forest Service

Egg masses appear as 1.5 inch (4 cm) tan or buff-coloured hairs on tree trunks, outdoor furniture or the sides buildings.

Gypsy moth caterpillars change appearance as they grow.  Young caterpillars are black or brown and about ¼ inch (.6 cm) in length.  As they grow, bumps develop along their backs along with coarse, black hairs.  Each of the 11 sections of a developed caterpillar will have two coloured spots, the first five pairs, blue, and the last six, red.  Mature caterpillars can be as long as 2 ½ inches (6.35 cm).

Gypsy moths are seen only in mid-summer.  Males are grayish brown and can fly; females are larger, whitish with black marks and cannot fly.

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