Author： BOITEAU G. BRADLEY J. R. DUYN J. W. VAN
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.72, Iss.2, 1979-03, pp. : 298-302
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Abstract
Trapping studies showed that 50% of the bean leaf beetles, Cerotoma trifurcata (Forster), caught below 3.0 m were less than 1 m from the ground. This pattern, independent of plant stage, was constant throughout the season in fields of flat topography which characterize the Tideland area. Bean leaf beetles are daytime fliers whose peak period of flight activity starts before 1200 h and ends by 1430–1500 h. Data collected by trap and sweepnet sampling showed 3 seasonal periods of flight: a field colonization flight by overwintered beetles and a combination of trivial and overwintering flights by both the F1 and F2 beetles.
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