山西农业大学学报（自然科学版）2016，Vol.36Issue(9)：654-658,5.
有益真绥螨对截型叶螨控制能力的研究
Biological control of Tetranychus truncatus by Euseius utilis
摘要
Abstract
Objective]To study the predation ability of Euseius utilis .[Methods]for using the predator to control spi-der mites,at room temperature,by changing inhabit area,different developmental stage of Tetranychus truncatus , densities of predator and interference within species on function responses analyzed the predator of Euseius utilis . [Results]The results showed that the dalily maximum number of Tetrauychus truncatus preyed theoretically by the Euseius utilis was 7.2 when the habitat area was 10 cm2. The habitat area was too smaller or too widely all restrain the ability of the predator.The female Euseius utilis like eggs,nymphs over adults of T.truncatus ,but preferred nymphs.The selection coefficients of Adult female、nymph、egg were 0.70,1.23,1.06. Intraspecific interference could strongly affect predation of Euseius utilis .The predation rate decreased accordingly with the rising of predator density and gradual decline of average amount of prey.The relationship of predation rate and predator density could be written as the equation E=1.47P-0.247 .[Conclusion]The Euseius utilis could control T.truncatus ,and it could be as a biocon-trol agent against T.truncatus .关键词
真绥螨属/有益真绥螨/截型叶螨/生境面积/捕食量/干扰反应Key words
Euseius/Euseius utilis/Tetranychus truncatus/Inhabita area/Predation number/Interference reaction分类
农业科技引用本文复制引用
马敏,杜康,李生才,范青海..有益真绥螨对截型叶螨控制能力的研究[J].山西农业大学学报（自然科学版）,2016,36(9):654-658,5.基金项目
山西省青年基金(2014021027-1),山西农业大学校创新基金(201224) （2014021027-1）
