V. Zumr et P. Stary, MONITORING OF SEASONAL OCCURRENCE OF HYLOBIUS-ABIETIS (L) (COL, CURCULIONIDAE) IN DIFFERENT FOREST ENVIRONMENTS OF A MODEL AREA, Journal of applied entomology, 118(4-5), 1994, pp. 361-364
Simultaneous monitoring by baited pitfall traps (with alpha-pinene, et
hanol and water as baits) of crawling Hylobius abietis (L.) beetles in
five different but neighbouring environments in a model managed fores
t area (South Bohemia) manifested the same population patterns, in spi
te of high seasonal migrations. An over-all population management is h
ence presumed to be hardly feasible and activities ought to be concent
rated on clearings.