3种性引诱剂对刺梨非靶标昆虫的诱集效果研究OA

[Objective]The trapping effect of sexual attractants on non-target insects was explored to provide the technological basis for scientific control of non-target insects in Rosa roxburghii.[Method]The trapping effect of three sexual attractants on non-target insects was studied by the sexual attractant monitoring method.The diversity and trapping effect of non-target insects in traps were analyzed by Margalef index,Pielou index,Shannon Weiner index and Simpson index.[Result]Total 6 982 non-target insects were trapped by three sexual attractants and the trapped insects belonged to 44 species,10 orders including Lepidoptera,Coleoptera,Diptera,Hymenoptera,Blattaria,Dermaptera,Orthoptera,Hemiptera,Odonata and Mantotea.The species number in Lepidoptera was the highest,accounting for 25.00%.The insect individual number in Diptera was the highest,accounting for 74.81%and Mycetophilid was the dominant species.Within the same time,there was a difference in the captured number of insect species and individuals among three sexual attractants.The species number of non-target insects captured by Grapholitha molesta and Conogethes punctiferalis lure reached 29(the highest)and the individual number of non-target insects captured by C.punctiferalis lure was up to 3 491.There was a difference in diversity distribution characteristics of captured non-target insects among three sexual attractants and at different times in R.roxburghii.[Conclusion]Three sexual attractants(G.molesta,C.molesta and C.punctiferalis)all have the better trapping effects on non-target insects in R.roxburghii.The injurious insects can be scientifically controlled by establishing an accurate forecasting system and using the sexual lure trapping technology combining with sweet and sour trapping liquor and biogenic pesticides according to the occurrence dynamic regulation of trapped injurious insects in R.roxburghii planting bases.The non-target insects have no influence on trapping effect of sexual attractants to target insects because there was a significant difference in morphology between non-target insects and target insects.