共查询到19条相似文献，搜索用时 203 毫秒
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冬枣绿盲蝽成虫毒力测定与防治方法研究 总被引：1，自引：0，他引：1
通过室内和田间试验,比较了14种不同农药对冬枣绿盲蝽成虫杀伤力的差异。筛选了4种对冬枣绿盲蝽成虫具有较好杀灭作用的农药。室内试验结果表明:在14种农药中,对冬枣绿盲蝽成虫具有较好杀灭效果的有敌敌畏、氰戊菊酯、甲氰菊酯和氟虫腈。其中氟虫腈效果最好,LC50为81.57μg/g,其次为敌敌畏和氰戊菊酯,LC50分别为232.58μg/g、291.28μg/g。而大田试验,各种农药的防治效果较差。采用叶片喷雾法,5%氟虫腈乳油1000倍与20%甲氰菊酯乳油800倍防治效果最好,分别为65.94%、64.24%。土壤处理,基本无法控制成虫危害。因此必须采取多种方法才能有效控制绿盲蝽的危害。 相似文献
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黄缘阿扁叶蜂生物学特性及防治 总被引：2，自引：0，他引：2
黄缘阿扁叶蜂危害巴尾松针叶，在广西贺县一年发生１代，以老熟幼虫入筑室而以预蛹越夏，越冬，翌年１月中旬开始化蛹，２月上旬始见成虫羽化，３月初成虫开始产卵，３月中旬卵开始孵化，幼虫历期３０６天，应用９０％敌百虫或８０％敌敌畏４０００倍液喷杀３龄前幼虫效果好。 相似文献
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黄缘阿扁叶蜂ＡｃａｎｔｈｏｌｙｄａｆｌａｖｏｍａｒｇｉｎａｔａＭａａ危害马尾松针叶，在广西贺县一年发生１代，以老熟幼虫入土筑室而以预蛹越夏、越冬，翌年１月中旬开始化蛹，２月上旬始见成虫羽化，３月初成虫开始产卵，３月中旬卵开始孵化，幼虫历期３０６天。应用９０％敌百虫或８０％敌敌畏４０００倍液喷杀３龄前幼虫效果好。 相似文献
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短翅佛蝗是近年来在竹子上发现的一种害虫,在浙江一年1代,以卵在土中卵囊内越冬。5月上中旬开始孵化,雄蝗蝻4龄,雌蝗蝻5龄。7月中下旬羽化成虫,8月下旬开始产卵,10月底开始死亡。雄蝗一生取食竹叶300平方厘米,雌蝗1000平方厘米。用90％敌百虫2000倍液、80％敌敌畏乳剂、50％二溴磷乳剂3000倍液或2.5％溴氰菊酯15000倍液防治均有较好的效果。 相似文献
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《中国森林病虫》2016,(2)
采用野外定期采样和室内饲养的方法,观察悬铃木方翅网蝽Corythucha ciliata(Say)在山东济南的生活史;选择5种药剂在悬铃木方翅网蝽第1代卵高峰期开展防治试验。结果表明:悬铃木方翅网蝽在山东济南1 a可发生5代,以成虫群集于寄主开裂的树皮下或地下枯枝落叶中越冬;4月中旬越冬成虫开始上树危害,4月下旬开始产卵,5月中旬第1代卵开始孵化;自7月中旬起世代重叠较为明显,9月下旬第5代成虫陆续越冬。480 g/L毒死蜱EC 500~1000倍液、20%高氯·噻嗪酮EC 500倍液和0.7%辛硫·高氯氟EC 500倍液施药5 d后,悬铃木方翅网蝽第1代卵未孵化率均达到90%以上,是卵早期防治的可选药剂;4.2%高氯·甲维盐EC和4.5%高效氯氰菊酯EC直接杀卵效果不佳,但对初孵若虫的致死率达到100%,是卵后期施药的较好药剂。 相似文献
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试验结果表明，试验用5种农药对防治大袋蛾均有效，其中以氰戊菊酯为最好的行之有效的农药，本试验为今后进行防治庭院和行道树法相袋蛾提供依据。 相似文献
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通过采取不同类型药剂防治松毛虫效果试验,结果表明,采用化学农药溴氰菊酯防治,灭虫率达98.4%～98.3%,但大部分松毛虫的天敌亦被灭杀,翌春复查,虫口密度3～5条.株-1,林分仍存潜在威胁;使用Bt生物杀虫剂和灭幼脲防治,灭虫率达99%以上,林中有益昆虫正常活动,翌春复查,虫口密度0～1条.株-1,可以看出:采用生物杀虫剂防治松毛虫效果最好,可有效杀死和消灭松毛虫,还不污染环境,不杀伤杀死各种农林作物害虫的天敌,对人畜均不构成危害。 相似文献
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Philip D. Fanning Anthony VanWoerkom John C. Wise Rufus Isaacs 《Journal of pest science》2018,91(4):1279-1290
Chemical control of insect pests in food crops is dominated by broad-spectrum insecticides from a few classes, and there is an urgent need for alternative modes of action. We examined the efficacy of a spider venom peptide, GS-omega/kappa-Hxtx-Hv1a (hereafter, Hv1a) for control of spotted-wing Drosophila and evaluated the importance of phagostimulants and adjuvants for its efficacy. Topical and residual activity of Hv1a was low, with only 17.5% of exposed adult D. suzukii dying after 72 h. In contrast, 100% adult mortality was observed after 24 h when three adjuvants were added to Hv1a. Survival of eggs of D. suzukii oviposited into blueberries was also reduced by exposure to Hv1a combined with the same adjuvants, indicating that Hv1a activity against D. suzukii in the laboratory, but requires penetration of the insect cuticle for efficacy. In a field trial in blueberries, Hv1a gave comparable control to phosmet, and significantly reduced infestation in fruit. This biopesticide adds a new mode of action to the options available for integrated pest management of this and other insect’s pests. 相似文献
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三种生物农药防治灰斑古毒蛾林间试验 总被引：4，自引：1，他引：3
利用生绿Bt杀虫剂、1.8%阿维菌素、1.2%苦.烟乳油3种生物农药对灰斑古毒蛾OrgyiaericaeGermar 2~4龄幼虫进行了林间防治试验。结果表明,生绿Bt杀虫剂525 g/hm2对灰斑古毒蛾的防治效果为82.46%,最为经济有效;1.8%阿维菌素450 mL/hm2~150 mL/hm2对灰斑古毒蛾的防治效果在80.04%~100%之间,其中1.8%阿维菌素300 mL/hm2的防治效果最好。1.2%苦.烟乳油3种浓度的防治效果均为100%。 相似文献
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《Scandinavian Journal of Forest Research》2012,27(4):355-360
Side - effects of the permethrin formulations Gori 920 and Gori 920 L, the fenvalerate formulation Sumicidin 10 FW and the emulsifier of the Gori formulations were studied in seedlings of Norway spruce [Picea abies (L.) Karst.]. Whole plant treatment with the Gori formulations in early autumn resulted in a 5-10°C poorer frost tolerance (TDI) later in the autumn. Moreover, this treatment increased mortality by 30% within 2 yrs of testing in field trials. In contrast, a basal part treatment with the Gori formulations and whole plant treatment with Sumicidin 10 FW containing 10% fenvalerate had no negative effects during 2 yrs of field testing. Late autumn treatment with Gori 920 and Gori 920 L, followed by cold storage for 6 months, revealed poorer frost tolerance (3-4°C) in the spring than that in the control. These treatments also reduced leader shoot growth in the first year and increased the frequency of seedlings lacking a dominant leader after 2 yrs by 20-40%. The detrimental agent in Gori 920 L was found to be the emulsifier, ethoxylated nonylphenol, alone and in combination with the dispersal agent, linseed oil. The linseed oil had no significant additional negative effect on frost resistance and growth after the cold storage during the winter. The investigation demonstrates the necessity of testing for possible side - effects before practical use of any commercial pesticide formulation. 相似文献