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作 者:李伟群[1] 贤振华[1] 邓国荣[1] 曾东强[1] 黄大兴[1] 杨皇红[1]
出 处:《广西农业生物科学》2002年第2期92-97,共6页Journal of Guangxi Agricultural and Biological Science
基 金:世界银行贷款中国广西第二期红壤开发项目部分内容 (第 1 6号 )
摘 要:龙眼亥麦蛾 Hypitima longanae Yang et Chen在南宁年发生 5~ 6代。其对龙眼石硖品种及春梢、花穗、二次秋梢蛀害较严重。龙眼结果母枝或花梗受蛀害可减产 60 %以上。此虫蛀害龙眼新梢与龙眼鬼帚症状无因果关系。采用修剪及疏花疏果时结合剪除虫枝 ,合理施肥 ,促进新梢抽发整齐 ;在顶芽萌动期及新梢小叶平展率达 80 %左右时 ,各喷一次高效灭百可或巴丹与乐果混合剂等药剂保梢的综合防治措施 ,防治效果达 90 .2 0 %。It was found that Hypitima longanae Yang et Chen,an important pest damaged longan shoot,occured 5~6 generations each year in Nanning.The injured level of longan shoot existed observably difference in different varieties and seasons.The longan variety Shixia and the spring shoot,late autumn shoot and the pedicel were more serious injured by the pest.It would reduce about 60% of yield if the fruit-bearing shoot and pedicel of longan were injured.The results showed that the pest mined shoot did not cause longan witches broom.The control effect reached to 90 20% by adopting integrated measure included to remove the infected shoots by pruning ,sprout trimly by fertilizing and to protect shoots by spraying Alpha cypmethrin or Padan mixed with Dimethoate when sprouting and the foliole unfolded about 80%,respectively.
分 类 号:S436.67[农业科学—农业昆虫与害虫防治]
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