摘要
Through analysis of trap catches and fruit decay rate of different pear varieties,it was found that there were significant differences in parasitization of Grapholitha molesta（ Busck） among different pear varieties. The trap catches of Huangguan pear was the highest; the fruit decay rate of Xueqing pear was extremely higher than those of other varieties; the trap catches of early red comice were significantly lower than those of other varieties,and no injured fruits were found.
Through analysis of trap catches and fruit decay rate of different pear varieties,it was found that there were significant differences in parasitization of Grapholitha molesta（ Busck） among different pear varieties. The trap catches of Huangguan pear was the highest; the fruit decay rate of Xueqing pear was extremely higher than those of other varieties; the trap catches of early red comice were significantly lower than those of other varieties,and no injured fruits were found.
基金
Supported by Youth Fund of Hebei Academy of Agriculture and Forestry(A2015020106)
