Light-trap Catch of the Common Cockchafer (Melolontha melolontha L.) Depending on the Atmospheric Ozone Concentration

摘要

The study deals the efficiency of light trapping ofudthe Common Cockchafer (udMelolonthaudmelolonthaudL.) (Coleoptera: Melolonthidae) in connection withudthe ozone concentration of air. Theuddata of the Hungarian forestry light trap network wudere used for the years 1997 through 2006. Weudcalculated relative catch values of from the numberudof caught insects. We assigned these to the ozoneudvalues of the respective days. For the classified dudate pairs regression equations were calculated. Weudestablished that the light trapping is most effectiudve if the ozone concentration is high. As opposed tudoudthis, low ozone concentration reduces the success oudf the catch. Our results may be utilized in plantudprotection and forest protection prognoses