吡唑酰胺类化合物ZJ10520杀菌活性研究

Bioactivity of pyrazolamide compound ZJ10520

ZJ10520{3-(二氟甲基)-5-氟-1-甲基-N-[2-(2-氯-4-三氟甲基-苯氧基)苯基]吡唑-4-甲酰胺}是浙江省化工研究院有限公司创制的一种新型吡唑酰胺类杀菌剂。为了了解其生物活性和内吸性,进行了温室和田间试验。温室试验表明:该化合物在50~100 mg/L剂量下,对水稻稻瘟病和黄瓜白粉病的防效均在85%以上,对水稻稻瘟病的孢子萌发抑制率达100%;该化合物在植株叶片之间内吸输导性较差。田间试验结果表明,ZJ10520在90~108 g/hm2剂量下对水稻纹枯病有良好的防效,对水稻安全。ZJ10520具有广谱杀菌活性,较好的防治效果,可进行进一步的研究开发。

ZJ10520(3-(difluoromethyl)-5-fluoro-1-methyl-N-[2-(2-chloro-4-trifluoromethyl-phenoxy)phenyl]pyrazol-4-formamide)is a novel type of pyrazolamide fungicide developed by Zhejiang Chemical Research Institute Co.,Ltd..In order to know more about the bioactivity of ZJ10250,greenhouse and field tests were conducted.Greenhouse experiments showed that the control effect of this compound at 50~100 mg/L against rice blast and cucumber white powder were more than 85%.In addition,this compound at 50~100 mg/L was able to completely inhibit spore germination of rice blast pathogen.However,the permeability of this compound among plant leaves was poor.Field experiments showed that ZJ10520 at doses of 90 to 108 g/hm2 was good effective against rice blight,and was safe for rice growth.ZJ10520 has a broad control spectrum and good control effect for crop diseases,and should be researched and developed further.