R. Brenner, P. Koehler, R. Patterson
Oct 1, 1988
Citations
0
Influential Citations
11
Citations
Quality indicators
Journal
Journal of economic entomology
Abstract
An insect growth regulator (IGR), fenoxycarb, was used with conventional insecticides to suppress biotic potential of German cockroaches, Blattella germanica (L.), and thereby reduce population levels. Monthly applications of chlorpyrifos, fenvalerate, acephate, acephate with 0.5% synergized pyrethrins, and acephate plus fenoxycarb were compared; fenoxycarb was added to the acephate treatment every other month. Addition of the IGR resulted in cockroach populations at 80% below levels before treatment. The percentage of adults with twisted wings increased rapidly beginning 4 mo after treatment and remained at 60-90% (or the duration on the study (1 yr). When the IGR was applied less frequently than every other month, the percentage of adults with twisted wings decreased. Thus, unlike hydroprene, the first commercial IGR for cockroaches, fenoxycarb should be applied every other month to maintain a high level of sterility.