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Insect Management
Cotton Insect Management
Insect Diseases

Naturally occurring disease often substantially reduces lepidopterous larvae populations. Nomurea rileyi, a fungal disease, attacks bollworms and cabbage loopers causing them to become chalky white in appearance. Another fungal disease, entomophthora gammae, attacks loopers causing them to turn black. Polyhedrosis viruses also reduce the population of bollworms, budworms, and loopers. Warm, humid conditions are conducive to the development of these diseases.

Bollworm with Nomura rileyi

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Last Date Modified 07/15/2008
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University of Arkansas • Division of Agriculture
Cooperative Extension Service
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Little Rock, Arkansas 72204 • USA
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