Investigation And Diversity Of Forest Insects In Jining City, Shandong Province

In this paper, the main forest insects were studied as the research object in townships of Shandong Jining. By using methods such as field reconnaissance, sample collection, specimen preparation and system identification, the main insects species in counties cities of Jining were clarified to describe and record species, determine hazard rating and define the distribution area. Through investigation, the results are as follows:1. Through the census of insects in Jining,14325 pieces of specimens are collected, of which 11254 specimens were identified. In total there were 8 orders, 66 families and 291 species of insects, including 24 families and 177 species of the Lepidoptera, 8 families and 39 species of Coleoptera, 13 families 37 species of Hemiptera, 9 families and 18 species of Hymenoptera, 5 families and 7 species of Diptera, 3 families and 6 species of Orthoptera, 2 families and 5 species of Neuroptera, 1 families and 2 species of Mantodea respectively.2. In the survey, it is found that the insect which occur frequently should be see as the main control objects,such as Clostera anachoreta(Fabricius), Hyphantria cunea(Drury), Micromelalopha siversi(Staudinger), Apocheima cinerarius Ershoff, Drosicha corpulenta(Kuwana), Aprionaswainsoni sawyer(Hope), Semanotus bifasciatus Motschulsky and Corythucha ciliata Say. There are 32 species of natural enemy insect resources collected in the investigation, which belong to 13 families, 6 orders, including Mantodae, Carabidae, Cicindelidae, Coccinelidae, Reduviidae, Myrmeleontidae, ChrysopidaeSyrphidae Syrphidae, Asilidae, Ichneumonidae, Vespidae, Chrysididae, Chalcididae, etc.3. The occurrence area and time of eight kind of major forest pests in Jining city have been investigated preliminarily. It is found that Qufu City has the most species and number of the pests. 4. According to the insect collection of Jining City, the relative number(degree) of pest community and natural enimies community in Jining City was analyzed. Finally, the relative abundance of the species and the data of 5 indexes of 8 districts including forest incect aboudance, dominace, eveness and SHANNON diversity was obtained. Also, the Qufu City still has the highest diversty index, in which the Yutai couty has the highest dominace index.