防治荔枝炭疽病的药剂筛选及田间应用  

Effective Fungicides Screening and Field Application for Litchi Anthracnose

作　　者：李少卡 何凡[2] 陈哲[2] 王祥和[2] 胡福初[2] 郭利军[2] 赵亚 罗志文[2] 邓会栋 范鸿雁[2] 何舒[3] LI Shao-ka;HE Fan;CHEN Zhe;WANG Xiang-he;HU Fu-chu;GUO Li-jun;ZHAO Ya;LUO Zhi-wen;DENG Hui-dong;FAN Hong-yan;HE Shu(Institute of Plant Protection,Hainan University,Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests,Ministry of Education,Haikou 570228,China;Hainan Academy of Agricultural Sciences,Institute of Tropical Fruit Trees,Haikou Tropical Fruit Tree Scientific Observation Laboratory Station,Ministry of Agriculture,Hainan Key Laboratory of Tropical Fruit Tree Biology,Hainan Tropical Fruit Breeding Engineering Research Center,Haikou 57110,China;Hainan Academy of Agricultural Sciences,Institute of Plant Protection,Scientific Observation and Experiment Station of Crop Pests in Haikou,Ministry of Agriculture and Rural Affair,Key Laboratory of Plant Disease and Pests Control of Hainan Province,Haikou 57110,China)

机构地区：[1]海南大学植物保护学院生物灾害绿色防控教育部重点实验室,海口570228 [2]海南省农业科学院热带果树研究所,农业农村部海口热带果树科学观测实验站,海南省热带果树生物学重点实验室,海南省热带果树育种工程技术研究中心,海口571100 [3]海南省农业科学院植物保护研究所,农业农村部海口作物有害生物科学观测实验站,海南省植物病虫害防控重点实验室,海口571100

出　　处：《农药》2019年第10期773-776,共4页Agrochemicals

基　　金：国家重点研发计划(2017YFD0202100);海南省重点研发计划(ZDYF2018236);农业农村部病虫鼠害疫情监测与防治项目

摘　　要：[目的]为筛选出高效防治荔枝炭疽病的药剂及混配组合。[方法]菌丝生长速率法测定12种药剂对荔枝炭疽病菌的室内毒力活性;选择4种抑菌效果较好的药剂进行田间药效试验。[结果]20%苯甲·咪鲜胺EW、50%多菌灵WP对该菌的抑制效果最强,EC50值分别为0.0465、0.2604 mg/L,田间防效分别为80.23、77.24%;2者1∶1混用防效达84.48%;20%苯甲·咪鲜胺EW+50%多·锰锌WP防效为82.76%。[结论] 20%苯甲·咪鲜胺EW、50%多菌灵WP单施及其混用对荔枝炭疽病防治效果较好,可轮换使用进行田间防治。[Aims] This study aims to screen out effective control agents and mixtures for litchi anthracnose. [Methods] The mycelial growth rate method was used to determine the indoor toxicity of 12 fungicides against Colletotrichum gloeosporiodes, four fungicides with high bacteriostatic effect were selected for field efficacy test. [Results] The difenoconazole·prochloraz 20% EW and carbendazim 50% WP showed the strongest inhibitory effect to C. gloeosporiodes, with EC50 values of 0.0465, 0.2604 mg/L, and field control effects of 80.23, 77.24%, respectively.The combination of difenoconazole·prochloraz 20% EW and carbendazim·mancozeb 50% WP indicated 84.48% control efficacy to C. gloeosporiodes, anddifenoconazole·prochloraz 20% EW+ carbendazim 50% WP displayed 82.76% control.[Conclusions] The control effects of difenoconazole·prochloraz 20% EW, carbendazim 50% WP and their mixture on the control of litchi anthracnose were better, which could be used alternately to control litchi anthracnose in the field.

关 键 词：杀菌剂 防治 荔枝炭疽病 药剂筛选 田间应用 

分 类 号：S482.2[农业科学—农药学]