共查询到19条相似文献,搜索用时 93 毫秒
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为筛选出防治黄栌Cotinus coggygria枯萎病的高效低毒杀菌剂,选择4种不同生物杀菌剂分别进行盆栽苗防治与田间防治试验。结果表明:枯草芽孢杆菌Bacillus subtilis菌剂和哈茨木霉Trichoderma harzianum菌剂对黄栌枯萎病有一定的防效,并且可以在一定程度上促进植株的生长。盆栽苗中,枯草芽孢杆菌菌剂500倍稀释液防效最好,达到了77.85%;田间防效中,枯草芽孢杆菌菌剂和哈茨木霉菌剂500倍稀释液防效最好,分别为59.15%,55.00%。选择生物杀菌剂防治黄栌枯萎病时,优先选择枯草芽孢杆菌菌剂。 相似文献
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《内蒙古林业调查设计》2021,(4)
文章采用中生菌素、噻霉酮、氟啶胺和春雷霉素4种杀菌剂,进行田间药效试验,旨在有效防治核桃黑斑病的发生,探讨4种杀菌剂的田间药效,筛选出防效较好的杀菌剂。结果显示,4种杀菌剂对核桃黑斑病有较好防效,显著高于对照处理,除春雷霉素防效略差外,其他3种杀菌剂对核桃黑斑病均有较好的防效。中生菌素对果实和叶片黑斑病的防治效果分别为82.24%和83.27%;噻霉酮对果实和叶片黑斑病的防治效果分别为81.18%和81.74%;氟啶胺对果实和叶片黑斑病的防治效果分别为78.82%和79.08%。中生菌素、噻霉酮、氟啶胺可作为防治核桃黑斑病的理想药剂。 相似文献
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对洒金东瀛珊瑚菌核性根腐病症状、发生原因及发病规律进行了研究,并进行了五种杀菌剂的室内抑菌试验、田间药剂防治试验,结果表明:多霉威可湿性粉剂1000倍液防治效果最好、其次为咪鲜氨乳油1000倍液和三唑酮乳油1000倍液。 相似文献
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10种杀菌剂防治骏枣褐斑病田间试验 总被引:1,自引:0,他引:1
为筛选防治骏枣褐斑病的有效药剂,选用10种杀菌剂进行田间防治试验。结果表明:5%吡唑醚菌酯.55%代森联、10%苯醚甲环唑和48%波尔多液.30%代森锰锌有明显防治效果,考虑防效和使用成本,5%吡唑醚菌酯.55%代森联是比较经济适用的。田间试验表明混配成分杀菌剂可以避免红枣褐斑病病原菌的耐药性,建议作为常备杀菌剂使用;干旱情况下要适度增加喷药次数以提高药效。 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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South Africa has c. 110 000 ha planted to Acacia mearnsii (black wattle) with 85% of the revenue from the species obtained from the timber and 15% from the bark. From 2012/13 a wattle rust disease has spread throughout the black wattle plantation area in KwaZulu-Natal and from 2015 it was recorded in southern Mpumalanga. The pathogen affects trees of all age classes, causing a reduction in growth, as well as mortality with severe infection. No fungicides are currently registered in South Africa for the control of wattle rust. In October/November 2014, three black wattle trials were initiated in the KwaZulu-Natal Midlands and south-eastern Mpumulanga where fungicides were tested at varying rates for the control of wattle rust. The same trial design was used for all three trials and consisted of a 3 × 3 factorial with one additional control, replicated three times and laid out as a randomised complete block design. The factorial combination consisted of three fungicides (azoxystrobin + difenoconazole; azoxystrobin + cyproconazole; azoxystrobin) applied at three rates (×, 2× and ½ ×). The additional control was not treated with fungicides. Wattle rust had a significant and negative impact on tree growth, irrespective of site and/or previous infection. All fungicides tested, and at all rates applied, proved effective for the control of wattle rust. The optimum rate selected, timing and frequency of application will be based on a combination of prevention of resistance as well as optimisation of growth. For the most effective control of wattle rust, fungicides should be applied as a preventative, rather than corrective, measure. However, in cases of severe infestation, a corrective application could also be used to aid the management of wattle rust. 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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6种药剂对枸杞炭疽病的防治效果及其残留量的比较 总被引:1,自引:0,他引:1
为了筛选针对枸杞炭疽病的高效低残留农药,选用戊唑醇等6种药剂,就其药效及农药残留情况进行了田间比较试验。结果表明:施药后第7天,43%戊唑醇(SC)2 000倍液、40%氟硅唑(EC)6 000倍液、50%异菌脲(WP)1 000倍液、25%嘧菌酯(SC)1 000倍液、25%苯醚甲环唑(EC)1 000倍液和50%多菌灵(WP)500倍液对枸杞炭疽病的防治效果分别为97.00%、76.67%、69.33%、59.00%、56.00%和28.67%,施药后第10天的防治效果分别为92.50%、65.55%、47.41%、45.59%、45.44%和6.44%;戊唑醇的防治效果最好,氟硅唑次之。枸杞干果中戊唑醇的残留含量为2.60 mg·kg-1,低于最大残留限量;氟硅唑的残留含量为0.16 mg·kg~(-1),高于最大残留限量。6种试验药剂中只有戊唑醇符合高效低残留农药的筛选标准,可用于采果期枸杞炭疽病的防治。 相似文献
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绿巨人褐腐病化学防治试验 总被引:2,自引:0,他引:2
用29种杀菌剂对绿巨人褐腐病病原菌进行室内毒力测定,结果显示:25%健绿宝、70%代高乐、40%百可宁、50%消菌灵、72%克露、70%百德富、25%绿乳铜和70%土菌消8种药剂对绿巨人病株叶柄病斑和根部感染具强烈抑制作用。用这些杀菌剂进一步进行室外防治试验,对绿巨人叶柄、根部接种防治试验和对自然感染防治试验结果都表明,最理想的防治药剂为健绿宝。代高乐、百德富、新万生和土菌消也有明显的抑制效果,但百德富药效不太稳定。无伤口接种病菌不能侵入,而植株一旦受到创伤,喷淋杀菌剂在24h内都不能阻止病菌的接触侵入,接种前或后喷药都不能有效根除病菌的侵染;所以防止人为创伤、虫伤、自然风雨伤是防病的重要措施。 相似文献
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选用日曹-甲基托布津70%可湿性粉剂、百菌清50%悬浮剂、云大翠丽5%己唑醇微乳剂和粉锈宁15%可湿性粉剂等4种高效低毒的农药对麻疯树白粉病进行大田药效试验,结果表明:4种药剂对麻疯树白粉病均具有显著的防治效果,其中以日曹-甲基托布津70%可湿性粉剂稀释800倍液的防治效果最好,3次施药后防治效果达88.89%,对麻疯树白粉病的防治效果显著且稳定,优于其他药剂;喷洒次数的增加可明显提高低浓度杀菌剂的防治效果,因此生产上应尽量使用低浓度药剂连续喷洒2~3次,可延缓麻疯树白粉病抗药性的产生。 相似文献
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松落针病药剂防治试验 总被引:1,自引:0,他引:1
通过测试多菌灵、百菌清、炭疽福美、福美双、代森锌、代森锰锌、甲基托布津、代森铵、苯菌灵、退菌灵、炭特灵、克菌丹等12种不同杀菌剂对松针散斑壳菌(Lophodermiumpinastri(Schrad )Cher )孢子萌发的抑制作用,认为不同杀菌剂对松针散斑壳菌作用效果不同,药剂筛选结果表明代森铵、多菌灵、百菌清和退菌特等杀菌剂对松针散斑壳菌有较好的抑制作用。对马尾松幼林的松落针病作小区和林间防治试验,结果表明,林间应用45%代森铵水剂防治效果最佳,平均防效达81 2%。 相似文献