Articles

SAN JOSE SCALE (QUADRASPIDIOTUS PERNICIOSUS COMST.) MALE FLIGHT PATTERN MONITORING BY MEANS OF PHEROMONE TRAPS

Article number
525_59
Pages
407 – 412
Language
Abstract
The date on which the first generation of crawlers starts to migrate can be calculated as the sum of effective temperatures of 400 day degrees (dd) above 7.3° C, calculated from the date on which the first males have been found in the pheromone traps.
The date indicates the optimum period for timing of insecticide application.

Publication
Authors
F. Kocourek, J. Beránková, L. Streinz
Keywords
Full text
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