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Title: First-instar western corn rootworm (Coleoptera: chrysomelidae) response to carbon dioxide

Journal Article · · Environ. Entomol.; (United States)
DOI:https://doi.org/10.1093/ee/15.4.839· OSTI ID:5117724

Responses of first-instar western corn rootworm to CO/sub 2/ and N/sub 2/ gas gradients were studied in a laboratory test arena. Number of larvae reaching the gas source, number of turns toward and away from the gas source, larval velocity, and number of turns per cm traveled were recorded. Larvae exhibited a positive chemotactic response to CO/sub 2/ but not N/sub 2/ or air. There was no indication that a kinesis of any type was involved because velocities and turning rates were not significantly different among treatments. Results indicate that newly hatched larve may use CO/sub 2/ to locate corn roots.

Research Organization:
Purdue Univ., West Lafayette, IN
OSTI ID:
5117724
Journal Information:
Environ. Entomol.; (United States), Vol. 15:4
Country of Publication:
United States
Language:
English