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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (34): 187-192.doi: 10.11924/j.issn.1000-6850.casb15100048

• 植物保护 农药 • 上一篇    下一篇

枣园桃小食心虫防治阈值的研究

冯晓洁1,杨忠妍2,李靖宇1,刘福顺1,席国成1,刘春琴1,王庆雷1   

  1. (1沧州市农林科学院,河北沧州 061001；2沧州市农业信息中心,河北沧州 061001）
  • 收稿日期:2015-10-14 修回日期:2015-11-16 接受日期:2015-11-17 出版日期:2015-12-17 发布日期:2015-12-17
  • 通讯作者: 王庆雷
  • 基金资助:
    国家公益性行业（农业）科研专项“北方果树食心虫综合防控技术研究与示范推广”(201103024)。

Threshold of Carposina iponensis Walsingham Control

Feng Xiaojie1, Yang Zhongyan2, Li Jingyu1, Liu Fushun1, Xi Guocheng1, Liu Chunqin1, Wang Qinglei1   

  1. (1Cangzhou Forestry Academy of Sciences, Cangzhou Hebei 061001;2Cangzhou Agricultural Information Center, Cangzhou Hebei 061001 )
  • Received:2015-10-14 Revised:2015-11-16 Accepted:2015-11-17 Online:2015-12-17 Published:2015-12-17

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摘要： 试验旨在明确累积诱蛾量与采收期虫果率之间的关系，确定小枣园桃小食心虫防治的成虫阈值，为桃小食心虫的科学防治提供依据。非试验区随机放置诱捕器并记录成虫诱集数量；根据试验区成虫诱集数量，在不同物候期累积蛾量出现较大变动时，用细纱网套果500个左右，并在采收期调查虫果率；当诱集蛾量出现较大变动时，延后3~4天喷施1%甲维盐乳油和40%辛硫磷乳油的混合药剂进行防治，喷药后，用细纱网套果500个左右，采收期调查虫果率；用SPSS 17.0数据处理系统对结果进行分析，并用Excel 2007拟合累积诱蛾量与小枣虫果率的关系。结果表明：桃小食心虫在沧州枣园1年发生2代，于6月中下旬出土，蛾量高峰出现在7月中下旬，至9月中旬结束。枣园中桃小食心虫的累积蛾量与虫果率呈显著的正相关关系(P＜0.05)：在自然生长的枣园，综合2年数据为Y=-0.000001X2+0.008X+3.342(r2=0.874，P＜0.05)；在药剂防治条件下，综合2年数据为Y=-0.000002X2+0.006X+0.179(r2=0.890，P＜0.05)。试验证实，在小枣稳定坐果后，当累积蛾量在15头或以下时进行防治，虫果率至采收期就可控制在2%以内甚至更少。

关键词: 茶树品种, 茶树品种, 桂林, 区域试验

Abstract: The aim of our experiment is to clarify the correlation of the accumulative moths caught and the rate of fruit injury in harvesting time, and the threshold of Carposina niponensis Walsingham control, thus to provide evidence for Carposina niponensis Walsingham prevention. In the non-experiment site of jujube yard, we randomly placed 3 self-made Carposina niponensis traps and recorded the captured adult amount to analyze the occurrence dynamics of Carposina niponensis Walsingham. According to the captured adult amount, when the accumulative amount moths caught changed greatly in different phenological periods, we covered the fruit with about 500 fine gauzes and investigated the rate of fruit injury during the picking time. When we detected a big fluctuation of accumulative moths caught, we delayed the spray of 1% emamectin benzoate-chlorfenapyr EC and 40% phoxim EC for 3-4 days. After spraying, we covered the fruit with about 500 fine gauzes and investigated the rate of fruit injury. Then we analyzed the results with SPSS 17.0 data processing system, and compared the correlation of the accumulative moths caught and the rate of fruit injury by using Excel 2007. Carposina niponensis Walsingham in Cangzhou Jujube Orchard had one generation a year, born in late June, peaked in late July, and ended in the middle of September. The accumulative moths caught had a positive correlation with the rate of fruit injury (P＜0.05). In the natural growing jujube orchard, the comprehensive data for two years was Y= -0.000001X2 0.008X 3.342(r2= 0.874, P＜0.05); in the chemical control condition, the comprehensive data for two years was Y=-0.000002X2 0.006X 0.179(r2=0.890, P＜0.05). After stable fruit setting, if we carry out spraying when the number of the accumulative moths caught is no more than 15, the rate of fruit injury will be less than 2% .