Integrated Pest Management Guide

KEY TO CATERPILLARS FOUND IN BRITISH COLUMBIA CRANBERRY BEDS

	1	Three pairs of front (thoracic) legs behind head plus two pairs of hind legs. White stripes down sides and back Winter Moth and Bruce Spanworm (larvae similar)
	-	Three pairs of front legs plus three or more pairs of hind legs 2
	2	Three pairs of hind legs. White stripes down sides and back Alfalfa Looper
	-	Five pairs of hind legs 3
	3	Five pairs of hind legs and body smooth 5
	-	Five pairs of hind legs and body fuzzy 4
	4	Blackish spines arise from blue bumps on first five segments and from red bumps elsewhere  Gypsy moth
	-	Four distinct yellowish brushes arise from caterpillar's back, two black brushes point forward like feelers Rusty tussock moth
	5	Head black 6
	-	Head not black  7
	6	Body greenish yellow  Blackheaded fireworm
	-	Body dark brown with yellow dots and pale stripe down each side  Straw-coloured tortrix
	7	White or cream-coloured stripe down each side  8
	-	Stripes down side bright yellow or absent 9
	8	Brown with white stripe in young larvae, cream stripe in mature larvae. Head brown  Ochropleura implecta
	-	Green below with white, dark green, and yellowish stripes down sides. Head red  False armyworm
	9	Two bright yellow stripes down each side  Zebra caterpillar
	-	Stripes absent 10
	10	Greasy looking, yellowish green caterpillar with sparse spines usually found in trash layer Cranberry girdler
	-	Green caterpillar with darker green plate behind head; usually found inside berries Cranberry fruitworm

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