球孢白僵菌可湿性粉剂对马铃薯甲虫的防治效果

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 环境修复研究室

	球孢白僵菌可湿性粉剂对马铃薯甲虫的防治效果
	邓春生 1; 张燕荣 1; 张曼曼 1; 耿兵 1; 吴伟 2; 付文君 3; 张冬梅 3
刊名	中国生物防治学报
	2012
卷号	28 期号:1 页码:62-66
关键词	马铃薯甲虫球孢白僵菌毒力可湿性粉剂
ISSN号	2095-039X
其他题名	Effect of Beauveria bassiana Wettable Powder against Leptinotarsa decemlineata (Say)
英文摘要	从受感染的马铃薯甲虫Leptinotarsa decemlineata(Say)分离出菌株1513，经鉴定为球孢白僵菌Beauveriabassiana(菌种保藏号为ACCC32222)。为了评价其对马铃薯甲虫的防治潜力，本研究测定了不同浓度白僵菌对不同龄期马铃薯甲虫幼虫的毒力作用。结果表明，在室温条件下(22~28℃)，处理9 d时1~2龄幼虫的僵虫率与孢子浓度成正比，其LC_(50)为3.09×10~7孢子mL~(-1)；处理8 d时，对3~4龄幼虫的LC_(50)为9.92×10~7孢子mL~(-1)；而孢子浓度为1×10~7孢子mL~(-1)时，虫卵未受到明显的抑制。田间施菌2250 g hm~(-2)时，在新疆新源县的防治效果较好，18 d时98.87%的虫体落地，地表僵虫率为53.91%；而在新疆尼勒克县，仅在土壤中发现僵虫，僵虫率为19.61%。; The strain 1513 isolated from infected Leptinotarsa decemlineata was purified and identified to be Beauveria bassiana and conserved in agricultural culture collection of china(ACCC) with the number of ACCC32222.To evaluate its biocontrol potential,virulence of the isolate against different instar larvae of L.decemlineata was investigated under different spore concentrations.Results showed that when the temperature was 22 28 ℃,the cadaver rate of 1st 2nd instar larvae increased with the increase of spore concentration.The LC_(50) values of 9 days after treatment on 1st 2nd instar larvae and 8 days after treatment on 3rd 4th instar larvae of L.decemlineata were 3.09×10~7 conidia mL~(-1) and 9.92×10~7 conidia mL~(-1),respectively.Eggs of L.decemlineata were not inhibited when the spore concentration was 1×10~7 conidia mL~(-1).Field trials in Xinyuan of Xinjiang demonstrated that the mortality of L.decemlineata reached 98.87% when treated with B.bassiana wettable powder at about 2250 g ha 1 after 18 days,and cadaver rate on the earth surface was 53.91%.However,cadaver was only found in the soil with cadaver rate of 19.61% in Nileke of Xinjiang.
学科主题	植物保护
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/17105]
专题	农业环境与可持续发展研究所_环境修复研究室
作者单位	1.中国农业科学院农业环境与可持续发展研究所, 北京, 100081 2.新疆新源县农业技术推广站, 新源县, 835800 3.新疆伊犁自治州农业技术推广总站, 伊犁, 835000
推荐引用方式 GB/T 7714	邓春生,张燕荣,张曼曼,等. 球孢白僵菌可湿性粉剂对马铃薯甲虫的防治效果[J]. 中国生物防治学报,2012,28(1):62-66.
APA	邓春生.,张燕荣.,张曼曼.,耿兵.,吴伟.,...&张冬梅.(2012).球孢白僵菌可湿性粉剂对马铃薯甲虫的防治效果.中国生物防治学报,28(1),62-66.
MLA	邓春生,et al."球孢白僵菌可湿性粉剂对马铃薯甲虫的防治效果".中国生物防治学报 28.1(2012):62-66.