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VARIATION IN SOUTHERN PINE BEETLE ATTACK HEIGHT ASSOCIATED WITH PHORETIC UROPODID MITES1

Published online by Cambridge University Press:  31 May 2012

D. N. Kinn  and
J. J. Witcosky
D. N. Kinn
Affiliation:
Southern Forest Experiment Station, Forest Service-USDA, Pineville, Louisiana 71360
J. J. Witcosky
Affiliation:
Southern Forest Experiment Station, Forest Service-USDA, Pineville, Louisiana 71360
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Abstract

Southern pine beetles (Dendroctonus frontalis) carrying phoretic Trichouropoda australis deutonymphs were caught in bucket traps baited with frontalin-alpha pinene at heights of 3, 6, and 9 m on the boles of loblolly pines. Of 8475 beetles collected, 36.3% carried uropodids or their pedicels. Beetles trapped at 3 m carried more pedicels than those trapped at 6 or 9 m, indicating that the flight of beetles is influenced by the presence of phoretic mites. Re-emerging parent beetles can be differentiated from brood adults by the color of the mite pedicels.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 3 , 01 March 1978 , pp. 249 - 251
Copyright
Copyright © Entomological Society of Canada 1978

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