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The bird cherry-oat aphid (Rhopalosiphum padi L.) development on primary host (Prunus padus L.) was studied in Poznan in 2007–2008. First fundatrices of R. padi were observed already on the bird cherry in March in both years. The largest condensation of population was observed in May. At the second decade of May numerous winged morphs were formed and spring migration into the secondary hosts started...
Codling moth (Cydia pomonella) is one of the most important pests occurring in apple orchards in all regions of apple tree cultivation. A number of pest generations mainly depends on climatic conditions. Increasing frequency of chemical treatments led to acquisition of pest resistance to a considerable number of recommended plant protection products. Thus, considering apple orchard protection against...
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