摘要
初冬深翻林下土壤，可明显降低松阿扁叶蜂越冬虫密度，控制其危害。每年4月份成虫羽化出蛰期地面喷8％的绿色威雷300倍液，防效达92％以上；1～2龄幼虫期郁闭度大于0．7的林分采用DDV和林丹烟剂防治效果达85％以上。5月上中旬，树冠喷40％氧化乐果乳油l200倍液、25％灭幼虫脲Ⅲ号胶悬剂1500倍液、2．5％敌杀死乳油4000倍液、3％高渗苯氧威4000倍液、1．2％苦·烟乳油1200倍液进行树冠喷药，其防效达92％以上，最高达96％。提出了油松幼林营造油松栎类混交林；中龄林适当增加林窗密度促进形成针阔混交林；大面积油松营造防虫林带的营林防治措施，以控制松阿扁叶蜂的危害。
Acantholyda posticalis Matsumura in Shangluo caused serious damage to Chinese pine （Pinus tabuliformis Carriere）. Tilling soil can significantly reduce pest density over winter. During April eclosion, use o~ ground spray 8% Luseweilei 300 times liquid could reach control effect above 92%. For forest with crown density over 0.7, larvae of 1-2 instars could be treated with DDV and LinDan fumicants, control effect reaching more than 85%. In mid of May or over, spray of 40% Omethoate EC 1200 times, 25% larvae exterminating urea No. 3 rubber suspension agent 1500 times, 2.5% Deltamethrin 2.5 EC 4000 times, 3% fenoxycarb 4000 times, or 1.2% tobacco tar EC 1200 times could have the control effect above 92%, with maximum effect at 96%. The control measures like pine-oak mixed plantation establishment, canopy gap increase in the middle-age forest to promote the formation of needle and broad-leaved mixed forest; pest control belt establishment for large area of Pinus tabulaeformis plantation proved to be effective to block the damage by Acantholyda posticalis.
出处
《陕西林业科技》
2015年第4期100-103,共4页
Shaanxi Forest Science and Technology
关键词
松阿扁叶蜂
生物学
防治技术
Acantholyda posticalis
biology
control technology
