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进行甜菜夜蛾性信息素(诱芯)防治甜菜夜蛾田间试验研究,结果表明:载体为橡皮塞的甜菜夜蛾性信息素诱蛾量比20 W黑光灯高48.96%~83.18%,平均66.07%;设置诱盆密度15个/hm2的诱杀区卵块量平均比对照区下降42.11%,卵量减少59.96%,卵孵化率比不施用性信息素的对照区降低29.4个百分点,防治效果明显。 相似文献
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斜纹夜蛾性引诱剂在测报和防治上的应用研究 总被引：6，自引：0，他引：6
利用黑光灯和性引诱剂诱测斜纹夜蛾,探讨其在测报上的应用,并在花生大田开展了应用斜纹夜蛾性引诱剂诱杀成虫的试验,取得了良好的效果. 相似文献
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通过黑光灯诱测、性引诱剂诱测、大田系统调查、室内养虫观测等方法调查总结了粤北山区斜纹夜蛾发生规律,并提出其治理对策,以期为该地区斜纹夜蛾的防治提供参考。 相似文献
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二点委夜蛾是2005年发生并被中国动物研究所鉴定的玉米新害虫。由于该害虫易与黄地老虎在形态上混淆，因此目前的发生范围尚未澄清，且很易延误防治。今年各地加强了对二点委夜蛾的监测和研究，根据黑光灯诱测，6月10日各地蛾量骤增，进入第一代蛾高峰， 相似文献
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《现代农业科技》2019,(8)
为了探明邵阳烟区斜纹夜蛾的危害规律及影响诱蛾效果的关键气象因子,2015—2017年在湖南省邵阳县利用性诱剂对斜纹夜蛾进行了3年的诱捕监测,并对诱蛾量与气象因子进行了相关性分析。结果表明,邵阳烟区斜纹夜蛾发生高峰为5月上旬至7月下旬,6月中下旬达到最大值。诱蛾量与气象因子相关性分析表明,斜纹夜蛾诱蛾量与日平均气温、日最高气温、日最低气温成极显著相关,即斜纹夜蛾诱蛾量随气温的升高而增多。因此,邵阳烟区斜纹夜蛾的防治最佳时期为5—7月,其间如遇干旱高温天气,斜纹夜蛾繁殖、生长速度加快,群体数量增加,此时应当加强对斜纹夜蛾的防治力度,一方面增加性诱剂安置密度,另一方面科学地使用化学农药,从而达到防治目的。 相似文献
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为探明邵阳烟区斜纹夜蛾的为害规律及影响诱蛾效果的关键气象因子,2015~2017 年在湖南省邵阳县利用性诱剂对斜纹夜蛾进行了三年的诱捕监测,并对诱蛾量与气象因子进行了相关性分析。结果表明,在邵阳烟区斜纹夜蛾发生高峰为5月上旬至7月下旬,6月中下旬达到最大值。诱蛾量与气象因子相关因子分析表明,斜纹夜蛾诱蛾量与日平均气温、日最高气温、日最低气温极显著相关,即斜纹夜蛾诱蛾量随气温的升高而增多。因此,在邵阳烟区斜纹夜蛾的防治最佳时期在5至7月,在此期间如遇干旱高温天气,斜纹夜蛾繁殖生长速度将加快,群体数量将增加,应当加强对斜纹夜蛾的防治力度,一方面增加性诱剂安置密度,另一方面科学的使用化学农药,从而达到防治目的。 相似文献
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本文比较了3种配方性诱剂和3种形状诱捕器对沙蒿木蠹蛾的诱捕效果,结果表明,性诱剂顺-5-十二碳烯乙酸酯的诱芯具有很高的诱蛾活性;船形诱捕器的诱捕效果最好;诱捕器放置高度为1.6～2.0 m的诱集效果最佳;晴天诱捕数量最多。3种性诱剂(器)的诱蛾时间动态表明：性诱剂Z5-12:Ac、船形诱捕器、放置高度为1.6～2.0 m、晴天诱捕为最佳组合,效果优于单项防治措施,该结果可为合理利用性诱剂对沙蒿木蠹蛾进行种群动态监测和有效防治提供理论依据。 相似文献
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性信息素防治技术一直是我国防治亚洲玉米螟的重要方式之一。为测试不同干式性诱捕器与不同浓度性诱芯对亚洲玉米螟雄蛾的诱捕效果，开展了捕虫室固定或摇摆、进蛾口口径、不同诱捕器类型对田间玉米螟雄蛾的诱捕试验，并对搭配4种性诱芯的桶状诱捕器在不同试验田诱捕玉米螟雄蛾的效果进行研究。结果表明：①捕虫室固定的诱捕器比摇摆的诱捕器诱捕玉米螟雄蛾效果更好；②不同口径的塑料诱捕器中，外口直径14 cm诱捕器诱捕雄蛾效果较好，且对于相同口径诱捕器，橡皮性诱芯诱捕雄蛾效果优于牙签性诱芯；③比较桶状诱捕器、塑料诱捕器和三角板诱捕器，桶状诱捕器的诱捕雄蛾效果最好；④在玉米田、水稻田中，搭配2.6∶1-XP性诱芯的诱捕器诱捕雄蛾数量较多；在大豆田，搭配1∶1性诱芯的诱捕器诱捕雄蛾数量较多。综上所述，捕虫室固定、诱捕器进蛾口越大，诱捕玉米螟雄蛾效果越好；相同诱捕器，配置橡皮性诱芯诱捕雄蛾效果更好，不同作物田地的最佳性诱芯不同。结果为合理使用性诱捕器及性诱芯防治亚洲玉米螟提供理论依据。 相似文献
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沙棘木蠹蛾性信息素林间诱蛾活性试验 总被引：6，自引：0，他引：6
为比较沙棘木蠹蛾性信息素不同配方的诱集效果,该文利用人工合成的性信息素组分顺7-十四碳烯乙酸酯(Z7-14:Ac)、反3-十四碳烯乙酸酯(E3-14:Ac) 和反7-十四碳烯乙酸酯(E7-14:Ac)按照不同比例配置的4种配方进行了野外诱集试验.结果表明:4组不同配方的性信息素均具有较强的诱集效果,其中平均诱蛾量最高的达17头/诱捕器,日诱蛾量最高的为11头/d,持效期达26 d,不同配方的有效诱捕距离分别达100和150 m.通过比较两种不同诱捕器的野外诱集效果发现:沙棘木蠹蛾实用新型诱捕器的诱蛾效果稍差于三角形诱捕器,但其具有使用方便、易于操作、可长时间使用等特点,诱捕器的最佳悬挂高度为1 m.用性信息素诱杀害虫作为一种高效、无毒、无污染的新方法为沙棘木蠹蛾的综合防治提供了一条崭新的途径. 相似文献
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《农业科学学报》2016,(7)
The tea geometrid Ectropis obliqua is one of the most serious leaf-feeding insect pests in tea(Camellia sinensis) in East Asia. Although several volatile chemicals emitted from tea plants have been reported to be attractive to E. obliqua moths, no synthetic attractants for E. obliqua moths have been developed. By measuring the behavioral responses of the moth to a series of chemicals in the lab, we found that a blend containing a ternary mixture containing(Z)-3-hexenal,(Z)-3-hexenyl hexanoate and benzyl alcohol clearly attracted to E. obliqua moths of both sex and that(Z)-3-hexenyl acetate could enhance the attractiveness of the ternary blend. Moreover, we found that the volatiles emitted from the plant-E. obliqua larva complex have the same attractiveness as: 1) the blend of volatiles containing the ternary mixture and 2) the blend containing(Z)-3-hexenyl acetate plus the ternary mixture to both male and female moths. In a field bioassay, more male moths were observed on traps that were baited with the blend containing(Z)-3-hexenyl acetate plus the ternary mixture than on control traps. Our study raises the tantalizing possibility that synthetic blends could be deployed as attractants for pests in the field. 相似文献
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GUO Pei WANG Gao-ping JIN Li-jie FAN Xing-qi HE Han-lin ZHOU Pei-wen GUO Xian-ru LI Wei-zheng YUAN Guo-hui 《农业科学学报》2018,17(7):1516-1526
The presence of adequate nectar sources along the migratory pathway is a prerequisite for moths of oriental armyworm, Mythimna separata, to reach target habitats and lay eggs. Identification of plant species and assessment of their suitability as wild nectar sources along the summer migration pathway of adult M. separata are critical steps in making effective forecasts of second-and third-generation armyworm outbreaks in North China. We explored five aspects of moth-nectar source relationships:(1) Field investigations in 2014 and 2015 showed that the florescence of chaste tree, Vitex negundo var. heterophylla, a primary nectar plant in apiculture, coincided with the summer migration of oriental armyworm moths. The flowers of chaste tree opened day and night and M. separata moths were found actively flying around and resting on tree.(2) Identification of moth-borne pollen by scanning electronic microscopy(SEM) micrographs in 2015 and 2016 revealed that 15.4% of 369 moths trapped by blacklight traps, 17.1% of 557 moths captured by vertical-pointing searchlight traps and 24.4% of 311 moths caught by pheromone traps were found with pollen attached to their proboscis. A total of 228 pollen-carrying individuals out of 1237 armyworm moths were captured by the three types of traps. The three highest percentages of pollen-bearing armyworm moths were carrying pollen of Toona sp.(59.65%), Ligustrum sp.(27.19%) and Syringa sp.(4.39%). In total, 14 types of pollen were detected where three were identified to species, 10 to genus and one as an unknown species.(3) Analysis of geographical distribution, flowering periods and relative abundances of candidate nectar plants suggested that Chinese toon, Toona sinensis, and privet, Ligustrum lucidum, were two important nectar plant species.(4) Analysis on relationship between pollen and ovarian development showed that 14, 15 and 10 females carrying pollen of T. sinensis had ovaries at developmental stages Ⅰ, Ⅱ and Ⅲ, respectively. Many T. sinensis pollen grains were present on the proboscises of female moths.(5) Comparison of trap effectiveness between blacklight and vertical-pointing searchlight traps indicated blacklight traps caught the highest proportion(35.2%) of female in ovarian stage Ⅴ, whereas vertical-pointing searchlight traps caught the highest proportion(43.5%) of female in ovarian stage I with additional proportions of decreasing percentages for stages Ⅱ, Ⅲ and Ⅳ. Integrated analysis on these five aspects suggests that T. sinensis is an important, suitable summer nectar source that potentially influences migration and reproduction of M. separata moths andthus contributes to outbreaks of this pest. The vertical-pointing searchlight trap was the most effective tool for monitoring the migratory flight of adult M. separata. Privet, Ligustrum lucidum, and clove, Syringa sp., are possible suitable summer nectar plants that need further study to elucidate their importance. The reason why field investigation results on chaste tree differed from the results of moth-borne pollen analyses was discussed. 相似文献
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红枣桃小食心虫发生规律 总被引：3，自引：1，他引：2
[目的]明确红枣桃小食心虫发生规律。[方法]采用性诱剂诱捕的方法,研究红枣桃小食心虫成虫的发生消长动态。[结果]红枣桃小食心虫在陕西延川1 a发生1~2代,其中大部分1 a发生1代,个别的发生2代;越冬代成虫在6月中下旬开始羽化;有世代重叠现象;在枣树高度1.0~2.0 m范围内诱集到的成虫数量有一定差异,2.0 m处分布最多,在运用性诱剂诱杀红枣桃小食心虫成虫时,应尽量将诱捕器放置在枣树近2.0 m高处,以达到更好的诱捕效果;成虫活动时间主要在20:00~24:00和0:00~4:00时间段,其中在0:00~2:00时段活动更频繁、更活跃。[结论]试验结果为有效测报和防治红枣桃小食心虫提供了理论依据。 相似文献
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性诱剂对花生田棉铃虫和小地老虎防治效果研究初探 总被引：2，自引：0，他引：2
2011～2012连续两年利用性诱剂开展花生田棉铃虫和地老虎的防治试验,并比较不同诱捕高度及诱捕器类型对诱捕效果的影响。结果表明:使用棉铃虫性诱剂悬挂在花生上方60 cm,使用小地老虎性诱剂悬挂在花生上方20～60cm,诱捕效果最佳;对两种靶标害虫,三角型诱捕器的日均诱蛾量均显著高于桶型诱捕器;从防治效果看,第一年小地老虎和棉铃虫幼虫虫口减退率分别为41.7%、40.0%,花生植株受害率分别降低44.4%、36.3%;连续诱捕两年后防治效果得到明显提高,幼虫虫口减退率分别为63.6%和69.6%,植株受害率分别降低60.0%和73.7%。 相似文献
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【目的】研究诱捕器颜色、悬挂高度、悬挂位置对诱蛾效果的影响,为针对番茄潜叶蛾的绿色防控提供依据。【方法】以专一性引诱剂为材料,采用行为生态学技术方法,在有机蔬菜生产温棚,对比研究性信息素诱捕器(平面式)颜色、诱捕器悬挂高度和诱捕器悬挂位置对番茄潜叶蛾诱捕效果。【结果】蓝色、绿色、黄色和白色4种颜色性信息素诱捕器均可诱捕到一定数量的番茄潜叶蛾,4种颜色诱捕器41 d平均日诱蛾量从高至低依次为蓝色65.4头、绿色59.7头、白色47.4头、黄色30.9头,逐日诱蛾量中,蓝色诱捕器最高,依次为蓝色和绿色>白色>黄色诱捕器,差异显著。不同颜色诱捕器逐日诱蛾量占比中,4种颜色的诱捕器两两比较均有显著性差异,依次为蓝色>绿色>白色>黄色。3种悬挂高度性信息素诱捕器39 d平均日诱蛾量依次为40~60 cm为125.1头、90~110 cm为96.1头、140~160 cm为65.1头,逐日诱蛾量中,40~60 cm最高,依次为40~60 cm>90~110 cm>140~160 cm,差异明显。不同悬挂高度诱捕器诱蛾量占比中,40~60 cm显著高于其他2种悬挂高度,依次为40~60 cm>90~110 cm>140~160 cm,差异明显。3种悬挂位置性信息素诱捕器35 d平均日诱蛾量依次为悬挂于通风口处为103.0头、出入口处为66.6头、远离通风口处为71.4头/诱捕器,逐日诱蛾量中,通风口处诱蛾量最高,依次为通风口>远离通风口>出入口,差异明显。不同悬挂位置诱捕器诱蛾量占比中,悬挂于通风口处的诱捕器诱蛾量显著高于其他2种悬挂位置,依次为通风口>出入口和远离通风口,差异明显。通风口>远离通风口>出入口。【结论】在设施蔬菜生产中,将蓝色性信息素诱捕器(平面式)于40~60 cm放置通风口处,对番茄潜叶蛾的诱捕效果最好。 相似文献