Redhumped Caterpillar

Pest: Redhumped caterpillar (Schizura concinna)

Pest Type: Insect Pest

redhumped caterpillar 2

Major Identifying Features: Striking appearance, main body is yellow with longitudinal reddish and white stripes, head is bright red, fourth abdominal segment is red and enlarged

Life Cycle: Redhumped caterpillars pass the winter as full-grown larvae in cocoons on the ground, in early summer, moths lay eggs in masses on the underside of leaves, there are at least 3 generations each year in Northern California

Pest Rating: Minor

Management Rating: Easy

Host/Season/Outbreak Information: spring, can be a pest of apricot orchards in the Central Valley

Damage Information: Redhumped caterpillars generally skeletonize leaves, leaving behind only leaf veins, they do not web leaves

Management Options: Biological control with parasitic wasps, spiders, lacewings, bigeyed bugs, and damsel bugs, and cultural control by pruning is often enough to manage the pest, sprays of Bacillus thuringiensis



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