【摘 要】
：
Monilia yunnanensis was recently identified as a new species causing brown rot of peach in China.Sterol 14αt-demothylase inhibitors (DMIs) continue to be important in the management of brown rot of Mo
【机 构】
：
华中农业大学植物科学技术学院,武汉430070 华中农业大学植物科学技术学院,武汉430070;湖
【出 处】
：
中国植物病理学会化学防治专业委员会第九届中国植物病害化学防治学术研讨会
论文部分内容阅读
Monilia yunnanensis was recently identified as a new species causing brown rot of peach in China.Sterol 14αt-demothylase inhibitors (DMIs) continue to be important in the management of brown rot of Monilinia spp.worldwide.Tebuconazole and triadimefon are two kinds of DMIs fungicides that may be used for brown rot control in China.To establish the baseline of M.yunnanensis to these two DMI fungicides, altogether 203 M.yunnanensis single spore isolates were collected.Measurements of sensitivity to two fungicides were based on inhibition of mycelial growth.For both fungicides, the sensitivity distribution was a unimodal curve, with a mean EC50 value of 0.000 1 ~ 0.064 4μg/mL for tebuconazole and 0.231 1 ~ 1.747 7 μg/mL for triadimefon.Since all the M.yunnanensis single spore isolates were obtained from orchards where DMI fungicides have not been used for peach brown rot control.This gives us an opportunity to establish true baselines for monitoring the resistance development in M.yunnanensis once the DMI fungicides are used to control peach brown rot.
其他文献
研究4种甲氧基丙烯酸酯类杀菌剂对香蕉保健增产效应,探索4种杀菌剂无病害压力下保健增产效应的有效起始剂量存在范围及保健增产的幅度.供试药剂共4种,每种药剂设2个浓度.通过田间试验,测定了每个处理香蕉的产量和果梳数.烯肟菌胺与烯肟菌酯对香蕉保健增产的有效起始剂量应该低于或等于133mg/L;唑菌酯对香蕉的保健增产效应的有效起始剂量应大于或等于133mg/L,且小于666.7mg/L.其中133mg/L
目的：研究4种甲氧基丙烯酸酯类杀菌剂对苹果保健增产效应,探索4种杀菌剂无病害压力下保健增产的有效起始剂量或饱和剂量存在范围及保健增产的幅度.方法：供试药剂共四种,每种药剂设2个浓度.通过田间试验,调查了每个处理苹果的产量和优质率.结果：烯肟菌胺、烯肟菌酯对苹果保健增产有效起始剂量应低于133mg/L,饱和剂量应低于666.7mg/L.烯肟菌胺与烯肟菌酯对苹果保健增产效应较为明显.其中133mg/L
SYP-9069是我国沈阳化工研究院最新创制研发的结构新颖的化合物,目前正在申请发明专利,其作用机制尚不明确.已有的田间试验结果表明,SYP-9069兼具保护与治疗活性,可有效防治黄瓜霜霉病、马铃薯晚疫病和黄瓜白粉病等多种卵菌、真菌病害,同时对蚜虫、红蜘蛛等也有较好的活性.本研究测定了SYP-9069的抑菌谱,明确了其对荔枝霜疫霉和稻瘟病菌不同发育阶段的影响,为该药剂的商品化登记和作用机制的研究提
Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic fungal pathogen with a broad host range and a worldwide distribution.Boscalid belongs to the class of succinate dehydrogenase inhibitors (SDHI
Fusarium asiaticum is the primary causal agent of Fusarium head blight (FHB) of wheat in southern China.Carbendazim has been extensively used for the control of FHB, resulting in severe carbendazim re
Resistance of Fusarium graminearum to carbendazim is caused by point mutations in the β2-tubulin gene.The point mutation at codon 167 (TTT→TAT, F167Y) occurs in more than 90% of field isolates in Chin
Bacterial leaf blight of rice (BLB), caused by Xanthomonas oryzae pv oryzae, is one of the most serious bacterial diseases in China.Presently, bismerthiazole has been the major bactericide for the con
Y5247 (development code No.), a quinone-outsider-inhibitor (QoI), is a novel fungicide with a broadspectrum of fungicidal activity against plant filamentous fungi, including B.cinerea.Compared to azox
In this study, the cytochrome b (Cyt b) amino acid sequences were analyzed in 50 organisms covering all 5 kingdoms of eukaryotes.Six conserved domains, i.e., heme bL binding sites, heme bH binding sit
Plant diseases caused primarily by bacterialpathogens are leading to severe losses for agriculture andhorticulture crop production worldwide, and constitute agreat threat to global food security.With