Versuche zur Regulierung des Apfelwicklers Cydia pomonella in Norddeutschland

Summary

The population control of the codling moth (Cydia pomonella) is of great importance in ecological fruit-growing. Given suitable climatic conditions, an increase in population density can lead to explosive growth of subsequent generations. In the work described here we attempted (1) to determine the efficacy of plant protection preparations certi-fied for ecological fruit-growing, and (2) to develop a suitable application strategy. We found that a Granulovirus (Madex3) and Neem Azal were able to provide effective control of C. pomonella. The reduced effect of Madex 3 as reported e.g. from South-ern German orchards (KIENZLE et al. 2006) could not be observed in our trials.