Journal of Economic Entomology (1996) 89, 1192-1203

Andrew Liebhold, Eugene Luzader, Richard Reardon, Allan Bullard, Andrew Roberts, William Ravlin, Susan Delost and Brian Spears (1996)
Use of a geographic information system to evaluate regional treatment effects in a gypsy moth (Lepidoptera: Lymantriidae) management program
Journal of Economic Entomology 89 (5), 1192-1203
Abstract: The effectiveness of aerial applications of Bacillus thuringiensis and diflubenzon (Dimilin) in a gypsy moth, Lymantria dispar (L.), management program was evaluated using a geographic information system. System data included counts of overwintering egg mass densities, defoliation maps, and treatment block boundaries collected by the Appalachian Integrated Pest Management Program in Virginia and West Virginia from 1989 to 1992. Diflubenzuron treatments resulted in greater foliage protection and population reduction than did applications of B. thuringiensis except when egg mass densities before treatment were < 1,000 egg masses per hectare. Generally, neither treatment provided foliage protection in the year following treatment, especially when treatment blocks were small or near to defoliating populations, or both.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Andrew M. Liebhold

Research topic(s) for pests/diseases/weeds:
control - general
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
application technology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lymantria dispar		U.S.A. (NE)
Bacillus thuringiensis var. kurstaki (entomopathogen)	Lymantria dispar		U.S.A. (NE)