摘要
为了探讨杨梅褐斑病发生流行规律与防控技术,在黄山市屯溪区占川杨梅园进行田间试验。结果表明:5月初,病菌借助风、雨水传播,主要侵染杨梅春梢萌发的新叶,该时期为病害侵染的高峰期。7-8月高温干旱,病菌进入潜育期。9-10月病害症状明显,病叶枯死脱落,杨梅春梢的叶片发病较重,夏稍叶片发病较轻。该病害1年发生1次,无再侵染。防治试验结果表明:不同杨梅褐斑病害防治措施的效果有所差异,其中定期施肥并清除枯枝落叶+1:2:200的波尔多液+60%唑醚·代森联水分散粒剂的方法对病害的相对防效达到90.71%,防治效果最好。对杨梅褐斑病采用农业防治与药剂防治的综合防治措施,在该病害防治中具有良好的推广应用价值。
To popular rule and prevention and control technology,this study was to evaluate the leaf spot of Mycosphaerella myricae in Tunxi area that adopts the method of field experiment study.The results showed that the pathogen spread by wind and rain in early May,mainly infected the new leaves of spring shoot germination of bayberry,and this period was the peak of infection.In July and August,high temperature and drought caused the pathogen to enter the gley stage.The disease symptoms were obvious from September to October,and the diseased leaves died and fell off.The disease was more serious in the spring tip leaves and less severe in the summer leaves.The disease occurs once a year without reinfection.The control test results showed that the control effects of different control measures on Mycosphaerella myricae were different,and the relative control effect of regular fertilization and removal of dead leaves+1:2:200 Bordeaux solution+60%Azole ether,polyram water dispersible granule reached 90.71%,and the control effect was the best.The comprehensive control measures of agricultural control and chemical control on Mycosphaerella myricae have good value of popularization and application in the control of this disease.
作者
郑志
俞惠林
黄玉芬
苏胜荣
ZHENG Zhi;YU Huilin;HUANG Yufen;SU Shengrong(Life and Environmental Sciences College,Huangshan University,Huangshan Anhui 245041;Tunxi Forestry Bureau of Anhui province,Huangshan Anhui 245000)
出处
《山东林业科技》
2021年第3期61-64,共4页
Journal of Shandong Forestry Science and Technology
基金
大学生创新训练项目(201810375069,201810375082)。
关键词
杨梅褐斑病
发病规律
气象因子
防治技术
Mycosphaerella myricae
occurrence regularity
meteorological factors
prevention technique
