共查询到19条相似文献，搜索用时 140 毫秒
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论述了平榛白粉病的发病规律,利用不同浓度的代森铵、多菌灵、甲基托布津、三唑酮和百菌清药剂对平榛白粉病进行防治试验,比较了不同种类和不同浓度的药剂对平榛白粉病的防治效果。结果表明：平榛白粉病初期发病为5月下旬至6月初,发病高峰期为6月下旬至7月下旬;代森铵、甲基托布津、多菌灵、百菌清、三唑酮等药剂对平榛白粉病的防治均有不同程度的效果,以25%三唑酮可湿性粉剂防治效果最好,可达到80%以上。 相似文献
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用柳树根朽病的菌丝和病组织接种在含有不同药剂的培养基中,进行抑制根朽病病菌的药剂筛选试验,结果表明,供试的13种农药对该病菌均有一定的抑菌效果。试验获得的数据,经方差分析、SSR测验结果表明,各药剂间抑菌效果差异非常显著,以三福美1000倍液效果最佳,其抑菌率达100%;硫酸铜200倍液,三唑酮、百菌清、代森锌各1000倍液,其抑菌率均在95%以上;抑菌效果最差的是甲霜灵、多菌灵、甲霜灵锰锌,其抑菌率均在20%以下。 相似文献
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《内蒙古林业调查设计》2018,(6)
为筛选出对樟子松苗木猝倒病防治效果较好的药剂,本试验选择了百菌清、甲基硫菌灵、多菌灵、代森锰锌、敌克松5种药剂进行试验,测定5种药剂不同剂量处理对樟子松苗木猝倒病的防治效果。试验结果表明,在樟子松出苗后进行药剂喷施,试验的5种药剂均对樟子松苗木猝倒病表现出一定的防治效果。其中,敌克松对樟子松苗木猝倒病的防治效果最高,使用70%敌克松可溶性粉剂稀释800倍液处理后对樟子松树苗木猝倒病的防效达84.8%,多菌灵的防治效果次之,使用80%多菌灵可湿性粉剂稀释1 200倍液处理后对樟子松苗木猝倒病的防效达81.6%。百菌清、甲基硫菌灵、代森锰锌对樟子松苗木猝倒病的防治效果较低,但对樟子松苗木猝倒病也具有一定的防效。生产中建议在樟子松出苗后,使用敌克松、多菌灵喷雾进行处理防治樟子松苗木猝倒病。 相似文献
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采用最常见的5种药剂(75%百菌清、50%多菌灵、50%代森锰锌、58%瑞森霉、70%扑菌清)对油茶炭疽病进行防治的结果表明:5种药剂都有一定的防治效果,其中,以50%多菌灵和70%扑菌清处理组的防治效果最佳,但5种药剂防治效果的持续性较差,建议适时采取第3次药剂喷洒。 相似文献
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采用生长速率法和悬滴法测定了8种常用杀菌剂对赤水撑绿竹Bambusa pervariabilis×dendrocalamopsis daii根腐病病原菌尖孢镰孢菌Fusarium oxysporum Schlecht菌丝生长和孢子萌发的抑制作用,并测定了杀菌剂对尖孢镰孢菌的毒力。结果表明,各杀菌剂对菌丝生长和孢子萌发有不同程度的抑制作用,其中70%敌磺钠WP、3%广枯灵AS能很好地抑制菌丝生长,而70%敌磺钠WP、3%广枯灵AS、70%甲基硫菌灵WP、10%苯醚甲环唑WG对孢子萌发有较强的抑制作用,抑制率均在80%以上。对菌丝生长与孢子萌发均有明显作用的杀菌剂为70%敌磺钠WP、3%广枯灵AS。毒力测定结果表明,70%敌磺钠WP、3%广枯灵AS对尖孢镰孢菌的毒力最高,其EC50分别为0.072 5,0.112 6μg/mL、其次为70%甲基硫菌灵WP和10%苯醚甲环唑WG,其EC50分别为7.8216,7.318 7μg/mL。其余几种药剂的毒力较差。8种药剂的相关系数均在0.98以上,药剂浓度与抑制作用呈正相关。 相似文献
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HAN Jing HE Wei SONG Li-zhou TIAN Cheng-ming WANG Jin-liKey Laboratory for Silviculture Conservation of Ministry of Education Beijing Forestry University Beijing P.R.China Fragrant Hills Park Beijing P.R.China Forest Protection Station of Beijing Forestry Bureau Beijing P.R.China 《中国林学(英文版)》2009,(1)
We analyzed the inhibition rates of eight kinds of fungicides to the pathogen of verticillium wilt of smoke tree(Cotinus coggygria) by measuring mycelium growth.Results show that four fungicides(Weijunjing,thiophanate-methyl 70% WP(wettable powder),carbendazim 50% WP and Junxianwei) have the best antifungal effects.Three fungicides,Weijunjing,carbendazim 50% WP and Junxianwei,were selected to determine the control of verticillium wilt in potted smoke tree seedlings.We found that the relative efficacy of Wei... 相似文献
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We analyzed the inhibition rates of eight kinds of fungicides to the pathogen of verticillium wilt of smoke tree (Cotinus coggygria) by measuring mycelium growth. Results show that four fungicides (Weijunjing, thiophanate-methyl 70% WP (wettable powder),
carbendazim 50% WP and Junxianwei) have the best antifungal effects. Three fungicides, Weijunjing, carbendazim 50% WP and
Junxianwei, were selected to determine the control of verticillium wilt in potted smoke tree seedlings. We found that the
relative efficacy of Weijunjing was up to 74%. Based on the results, Weijunjing and carbendazim 50% WP were prepared for field
trials. The results indicate that the relative efficacy of Weijunjing (300 times diluted) and carbendazim 50% WP (400 times
diluted) were 66.2% and 48.9% in plot 1 and 26.4% and 31.8% in plot 2 after soil disinfection, and were 224% and 61.8% in
plot 3 without soil disinfection in 2007. The relative efficacy of Weijunjing and carbendazim 50% WP were 49.6% and 45.4%
in plot 2 in 2008. 相似文献
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Evaluation of various fungicides against needle blight disease of pine was carried out at Sheri Kashmir University of Agriculture Sciences and Technology of Kashmir(India) during the year 2008 and 2009. Application of various fungicides were evaluated in vivo at different concentrations. However in both, mist-chamber and poly-chamber, the Blue pine(Pinus wallichiana Jackson)seedlings treated with hexaconazole 5EC(@ 0.03 %) or carbendazim 50WP(@ 0.1 %) depicted significantly less disease incidence and intensity. The seedlings treated with mancozeb 75WP(@ 0.3 %) and chlorothalonil 75WP(@0.3 %) exhibited less disease incidence and intensity.Increase in relative humidity from 60 to 100 % significantly enhanced needle blight disease incidence and intensity. In field trial the fungitoxicants used either as single spray or protectant followed by systemic fungitoxicant spray significantly reduced disease incidence in Blue pine compared to check. The mean disease incidence in fungitoxicant treated plants varied from 11.82 to 25.51 %as compared to 36.03 % in control. 相似文献