摘要
柳树是西北园林的主要绿化树种之一,在栽培过程中极易受栽培条件和自然环境因素的影响而遭受病虫害侵袭。近年来,柳树丛枝病在甘肃省发生并蔓延,且发生量呈上升趋势,严重影响甘肃省的景观生态。柳树丛枝病发生的瘿瘤中存在大量瘿螨,为明确瘿螨与柳树丛枝病之间的关系,2020-2021年,调查了甘肃省柳树丛枝病主要发生地的瘿螨种群动态,并对各地瘿螨进行了形态学鉴定。结果表明,柳树丛枝中的瘿螨为张掖瘿螨,隶属瘿螨科,瘿螨属;随着调查地点由西到东的变化,瘿螨种类数量在逐渐递增,其中庆阳市柳树丛枝病瘿瘤中的瘿螨数量最多(平均为529头),酒泉市的瘿螨数量最少(平均为52头);瘿螨数量与柳树丛枝病的发病程度相关;不同地区瘿螨的发生时间不同,酒泉市瘿螨的发生时间最迟,庆阳市发生时间最早;瘿螨的发生期由西至东逐渐延长,其中酒泉市瘿螨的发生期最短(约3个月),庆阳市瘿螨的发生期最长(约5个月)。研究结果可为快速防治柳树丛枝病的发生及蔓延提供一定的理论依据。
Willow is one of the common planting tree species in northwest gardens,but it is easily affected by the cultivation conditions and natural environment factors during the whole planting process,resulted diseases and attacked by pests.In recent years,willow witches'broom disease has occurred and spread in Gansu Province,and the incidence is on the rise trend,seriously affecting the landscape ecology in Gansu Province.A large number of gall mites were found in the galls of willow witches'broom disease,in order to clarify the relationship between gall mite and the occurrence of willow witches'broom disease,this study investigated the population dynamics of gall mite in the main occurrence areas of Willow witches'broom disease in Gansu Province,and identified gall mite based on morphology characteristics.The results showed that the number of gall mites increased gradually from west to east,the number of gall mites in Qingyang was the highest(529 on average),and the number of gall mites in Jiuquan was the lowest(52 on average).The occurrence time of gall mite was various in different areas,among which the occurrence time of gall mite in Jiuquan city was the latest,and in Qingyang City was the earliest.The occurrence period of gall mite gradually increased from west to east,the occurrence period of gall mite in Jiuquan city was the shortest,about three months,and the occurrence period of gall mite in Qingyang city was the longest,about five months.There was a positive correlation between the number of gall mite and the incidence of willow witches'broom disease.The results can provide scientific reference for effective control of the occurrence and spread of willow witches'broom branch disease.
作者
牛犇
方健惠
王立祥
朱亚灵
田椰
罗婧婧
姚颖
NIU Ben;FANG Jianhui;WANG Lixiang;ZHU Yaling;TIAN Ye;LUO Jingjing;YAO Ying(Forestry Pest Control and Quarantine Station of Gansu,Lanzhou 730070,China;Major in Plant Protectionin the College of Plant Protection of Gansu Agriculture University,Lanzhou 730070,China;Institute of Landscape Science,Lanzhou 730070 China)
出处
《甘肃林业科技》
2024年第1期76-81,共6页
Journal of Gansu Forestry Science and Technology
基金
甘肃省林业和草原局2019年林业科技创新与国际合作省级财政资金项目(甘林规函[2019]418号)
兰州市科技局项目(2022-2-49)。
关键词
瘿螨
柳树丛枝病
种群动态
Gall mite
willow witches'broom disease
population dynamics
