作　　者： ; ; ; ; ;

机构地区： 汕头市林业科学研究所

出　　处： 《中国森林病虫》 2005年第3期9-11,共3页

摘　　要： 橄榄锄须丛螟在广东汕头1a4代,林间世代重叠现象严重。10月中旬至12月中旬,老熟幼虫陆续下树入土在表土层1～3cm处或枯枝落叶层结茧越冬。翌年3月上旬至4月中旬化蛹,3月中旬至4月下旬成虫羽化。4月上旬出现第1代幼虫,6月上旬出现第2代幼虫,7月下旬出现第3代幼虫,9月中旬出现第4代幼虫。11—12月可结合清园进行林地除草、松土,将表土及杂草堆成堆焚烧,消灭幼虫和蛹。在成虫羽化高峰时,采用DU-Ⅱ黑光诱虫灯可诱杀大量成虫。在幼虫为害高峰时,可采用90%敌百虫原药1500倍液、2.5%溴氰菊酯乳油2000倍液、2.5%功夫乳油2000倍液、90%万灵2000倍液进行防治以及保护天敌等综合措施,达到控制害虫为害的目的。 Macalla sp.has four generations a year in Shantou of Guangdong Province and the generations overlap.It overwinters as mature larva in the soil at a depth of 1-3 cm under tree crown or in fallen leaves from October to December.It pupates from March to April the next year.Its eclosion appears from March to April.The occurrences of larvae of the 1st,2nd,3rd and 4th generations are in April,June,July and September respectively.From November to December,we may adopt weeding,loosening the soil and burning surface soil and weed while cleaning garden to eliminate larva and pupa.In the eclosion peak,DU-Ⅱ black light lamp may be used to trap and kill adult.In larva peak,measures such as spraying 90% trichlorphon ((1 500)×),2.5% deltamethrin ((2 000)×),2.5% cyhalothrin ((2 000)×) and 90% methomgl ((2 000)×) as well as protection of natural enemies should be taken to control Macalla sp..

关 键 词： 生物学特性 综合防治 橄榄锄须丛螟

领　　域： [农业科学] [农业科学]