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Based on many studies and experiments one can say that biologically and economically hymenopteran parasitoids are very important group of insects. Many part of economic entomologists do agree that parasitoids – along with other entomophagous organisms play crucial role in maintaining the homeostasis of biocenosis. An exact knowledge of this insect group may thus constitute a base for their applying...
In 2007–2009, studies on the number of pear sucker and its parasitization degree by the hymenopteran Sectiliclava cleone were carried out on two plots of pear orchard, differing in terms of applied protection strategy (without and with insecticide treatment). The presence of parasitoids was only recorded in case of single insect pests from the summer generations. A parasitization degree of wintering...
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