新疆如今细须螨发生及为害规律研究  

Study on the Occurrence and Damage of Now Spidermites in Xinjiang

作　　者：阿布都克尤木.卡德尔 朱晓锋[1] 徐兵强[1] 吐尔逊娜依.图拉克 杨森[1] 

机构地区：[1]新疆农业科学院植物保护研究所,乌鲁木齐830091 [2]喀什地区疏勒县农业推广中心,新疆喀什844200

出　　处：《新疆农业科学》2010年第7期1376-1380,F0003,共6页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区重点攻关项目(200631102)

摘　　要：【目的】研究石榴优势种害螨如今细须螨(Tenuipalpus hornotinus Chaudhri,1971)发生,为害规律、分布型和防治关键时期,为综合防治须螨提供科学依据。【方法】在调查区,按棋盘式取样法,选取20棵树,定树定枝观察如今细须螨发生、为害规律及树体分布状况,并选取几种中低毒杀螨剂,采用不同浓度进行药效试验,记录害螨死亡率。【结果】如今细须螨在喀什地区1年发生4代,以雌成螨越冬。8月初到9月初是为害高峰期,完成1代约需23～25d。以若螨和成螨聚集叶背部的叶脉、叶柄附近,取食汁液,使叶片色泽褪绿发黄或呈暗红,提前脱落,致树势衰弱影响果实发育。如今细须螨在石榴树中多分布于南和东面。秋季清园、深翻、刮除粗老翘皮、保护天敌和化学防治等方法控制如今细须螨种群效果最佳。【结论】如今细须螨6月初第1代卵孵化高峰期是防治的关键时期。[Objective]In order to study guava now spidermites（Tenuipalpus hornotinus Chaudhri,1971）regularities of occurrence and damage of roomage distribution,master prevention linchpin date to put forward synthetical prevention measures in investigative section.[Method]According to tessellated samplinglaw,20 trees were selected,fix arbor and fix twig to observe now spidermite’s occurrence regularity and damage regularity.[Result]It has 4 generations annually,its female adult now spiodermites overwinter.Its damage peak period began from the early August and September.The accomplishment of one generation requires about 23-25 d.Its damage regularity was follows：the nymphs and adult mites were collected on the backside of leaf to absorb juice from the leaf to make the leaf to be changeed from green to yellow or dull red,which felt off and influened the development of fruit.Majority of now spidermites were distributed in the south and east of the orchard.The synthtical control technics were as follows：cheaning fruit orchard in autumn,turning up the soil,disloging the old tree bark,preventing natural enemies and chemical prevention were conducted to control now spidermites.[Conclusion]The first generation of now spidermites in the first ten-day period of June was the key period for controlling it.

关 键 词：如今细须螨 鉴别特征 发生 为害 规律 分布型 综合防治技术 

分 类 号：S436.65[农业科学—农业昆虫与害虫防治]