安徽竹柳病虫害调查及其相关因子分析

Relationship between Diseases and Insect Pests and Cultivation Measures of Introduced‘Zhuliu’in Anhui Province

摘要:

摘要：通过对安徽省涡阳、蚌埠、滁州和芜湖调查发现，竹柳病害危害最重的为水泡型溃疡病，病原为聚生小穴壳菌，平均发病率24.63%；竹柳虫害主要有5类：天牛类、柳蓝叶甲、膜肩网蝽、刺皮瘿螨和大青叶蝉，其中天牛类发生最为严重，平均虫株率46.13%。竹柳密度和病害发生率呈负相关关系，但林龄等与病虫害均无较强关系。通过对竹柳进行不同施肥处理，得出L4-4处理下的竹柳胸径最大，为10.26 cm，病虫害与对照相比明显减轻。

Abstract:

Abstract:Pest occurrence on‘Zhuliu’3rd in Guoyang, Bengbu,Chuzhou and Wuhu in Anhui Province were investigated,and the most serious disease was the blister canker which was caused by Dothiorella gregaria Sacc.And the average incidence in above four areas was 24.63%.Five major pests endangering‘Zhuliu’3rd were as follows:Cerambycidae,Plagiodera versicolora,Hegesidemus habrus, Aculops niphocladae and Cicadella viridis, and Cerambycidae took place most severely and the average infestation rate was 46.13%.‘Zhuliu’3rd stand density was negatively correlated with disease incidence, and there is no strong relationship between stand age and disease and pest.By the fertilization of‘Zhuliu’3rd, DBH under L4-4 treatment was maximum, which reached 10.26 cm, and pest occurrence was significantly reduced.