2005•Science and Technology of Qinghai Agriculture and ForestryRequires access
Investigation on Insect Kinds and Method of Controlling in Spring Rape Field East Agri-region of Qinghai
Yang Jun-li
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Abstract
Insect kind of spring planting rape field in east agri-region of Qinghai province were investigated.There are 72 species of insects belonging to 30 families of 7 orderes.Among them,there are 50 species belonging to 21 families of 6 orderes was pest and dominant species were Flea beetles,Ceuthorrhynchusasper,Aphides,Leafminers,Meligethes aeneus,Plutella maculipennisand so on.There are 22 species belonging to 9 families of 5 orderes,they are natural enemy and primary insects are ladybirds and hover flies.Pesticide kinds of poison low and effect high would be elected use for controlling dominant pest.