共查询到17条相似文献，搜索用时 312 毫秒
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COUNTER10％颗粒剂对甘蔗害虫具有良好的防治效果。3－5月份结合甘蔗松、培土，每公顷施COUNTER10％颗粒剂20、25、30kg，对蔗龟的防效达85．79％以上，对蔗螟的防效在80％左右，可作为蔗龟、蔗螟防治中的轮换用药。田间使用每公顷以20－25kg为宜。 相似文献
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30%度锐悬浮剂防治宿根蔗螟虫和绵蚜的田间药效试验 总被引：2，自引：0，他引：2
以3.6%杀虫双颗粒剂为对照药剂,研究30%度锐悬浮剂不同施用量对宿根蔗甘蔗螟虫和绵蚜的防治效果。结果表明:30%度锐悬浮剂450 m L/hm2、600 m L/hm2、750 m L/hm2处理在药后15 d、30 d、60 d对甘蔗螟虫的防治效果均高于3.6%杀虫双颗粒剂90 kg/hm2,其中以度锐750 m L/hm2处理的防治效果最高且差异显著。30%度锐600 m L/hm2处理药后30 d、60 d的防治效果与3.6%杀虫双颗粒剂的防治效果差异达显著水平。30%度锐3个不同处理,于药后130 d、160 d、190 d对宿根蔗绵蚜的防治效果均达到100%,而杀虫双的防治效果只有27.81%~8.20%,且防治效果随着时间延长递减。30%度锐3个不同处理间的甘蔗平均锤度和产量差异不显著,但与杀虫双和空白对照相比差异达显著水平。本研究说明30%度锐悬浮剂对甘蔗螟虫和绵蚜具有良好的防治效果,田间施用量建议为600~750 m L/hm2。 相似文献
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5%丁硫克百威颗粒剂防治甘蔗螟虫田间药效试验 总被引：16，自引：2，他引：16
5%丁硫克百威颗粒剂对甘蔗螟虫具有良好的防治效果。3～4月份结合甘蔗松、培土,每公顷施5%丁硫克百威颗粒剂45、60、75kg,对蔗螟的防效在80%左右,可作为甘蔗螟虫防治中的轮换用药。田间使用每公顷以45～60kg(有效成分2.25～3kg)为宜。 相似文献
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为试验筛选出高效低毒、经济环保的农药用于甘蔗赭色鸟喙象防治,开展了8个处理的大田甘蔗一年宿根药剂防治试验。结果表明,在甘蔗大培土时,每公顷施用18%氟腈·毒死蜱FS 7500 mL,对甘蔗赭色鸟喙象的防治效果最好,对成虫的防效为72.19%、对幼虫的防效为79.07%;每公顷施用40%氟·噻E 900 mL、成虫出土盛期再选用6%阿维·氯苯酰SC 600 mL喷雾防治一次,对甘蔗赭色鸟喙象的防治效果较好,对成虫的防效为67.55%、对幼虫的防效为41.86%;每公顷施用40%氟·噻E 900 mL、成虫出土盛期再选用2.5%高效氯氟氰菊酯EC 600 mL+5%虱螨脲EC 600 mL喷雾防治一次,对甘蔗赭色鸟喙象的防治效果好,对成虫的防效为44.37%、对幼虫的防效为67.44%。 相似文献
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Hkan Berg 《Crop Protection》2001,20(10):897-905
Pest management practices among rice and rice–fish farmers and their perception of problems related to pests and pesticides were surveyed in the Mekong Delta. A total number of 64 different pesticides were identified during the survey. Approximately 50% were insecticides, 25% were fungicides and 25% were herbicides. The main insecticides used were pyrethroids (42%) carbamates (23%) and cartap (19%). Non-IPM farmers used twice as many pesticides as IPM farmers. Their application frequency and the amount of active ingredient used were 2–3 times higher per crop, as compared to IPM farmers. During the last three years IPM farmers estimated that they had decreased the amount of pesticides used by approximately 65%, while non-IPM farmers said that they had increased the amount of pesticide used by 40%. Also, farmers growing fish in their rice fields used less pesticide than farmers growing only rice, as pesticides adversely affect cultures of fish. Taking a long-term perspective integrated rice–fish farming with IPM practices provides a sustainable alternative to intensive rice mono-cropping, both from an economic as well as an ecological point of view. 相似文献
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从化学防治黄曲条跳甲成虫的角度，选择20 %啶虫·哒螨灵SP(可溶性粉剂)、10 %阿维·哒螨灵EC(乳油)配方制剂在为害最为典型的菜心上进行黄曲条跳甲田间药效筛选试验。结果表明：药后5 d，3种药剂处理防治黄曲条跳甲均达到了极显著性差异(P＜0.01)，20%啶虫·哒螨灵SP(可溶性粉剂)处理和10 %阿维·哒螨灵EC(乳油)两种处理防效均极显著高于对照药剂15% 哒螨灵EC，10%阿维·哒螨灵EC500倍液在药后5 d防效达到了90.00%。该3种药剂处理区的持效期达到5 d，高于传统防治药剂2～3 相似文献
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The objective of this study is to quantify the relationship between synthetic pesticide use and agricultural intensification in the northern highlands of Thailand. We surveyed the crop management decisions of 295 farmers across 12 villages, and assessed the level of pesticide use in terms of monetary value, the active ingredients used, and using the Environmental Impact Quotient method. The results show that 77% of the farmers relied solely on synthetic pesticides for their pest management activities. The average farmer used 13.3 kg of active ingredients per hectare of agricultural land, but the variation was large. The highest levels of pesticide use were observed with the cultivation of cut flowers and greenhouse vegetables, while greater land use intensity was associated with increased usage of synthetic pesticides and a greater potential environmental impact. We found that those farmers following public certification of Good Agricultural Practices (Q-GAP), were neither able to reduce pesticide use nor its environmental impact. The findings suggest that to limit the environmental impact caused by the use of synthetic pesticides, greater priority must be given to developing and promoting non-synthetic methods of pest control together with gradually restricting the supply of highly hazardous pesticides. 相似文献