摘要
咖啡旋皮天牛是云南省思茅热区咖啡树的重要害虫之一 ,随着咖啡种植面积的扩大 ,其发生呈扩散和危害加重态势。该虫以幼虫主要危害定植后 2～ 3年生的幼龄咖啡树干 ,一般危害株率 10 %～ 15 % ,严重者达 70 %～ 80 %。该虫在云南思茅咖啡植区 1年发生 1代 ,跨年度完成。以老熟幼虫在土表上下基部树干表皮下或离开树干钻入潮湿土中以体裸 ,构成简易土室 ,以滞育态越冬。翌年 3月中、下旬 ,滞育越冬解除 ,继续发育。在掌握其生物生态学习性、发生危害规律基础上 ,采用综合治理 ,其中重要的是在 4月上、中旬前涂干 ;5月上、中旬至 6月上、中旬分别淋喷干 1～ 3次后 ,在云南思茅茶树林、曼歇坝二咖啡场该虫发生危害株率由原来的 10 %～ 15 %现降为 1.2‰～ 2 .1‰。
Dihammus cervinus Bates is one of the main pests of coffee tree in the tropical area of Simao.With the increasing of the planting area of coffee trees,the dispersing and the effects on the coffee trees of Dihammus cervinus are more serious than before.The pests mainly effect the young coffee trees after being planted 2 or 3 years.And usually about 10% to 15% coffee trees are effected,and in the most serious time,about 70% to 80% coffee trees are effected.In the coffee tree area of Simao,to this kind of pest,only one generation can be completed in a year but across years.The larvae of Dihammus cervinus enter the earth or the trunks of coffee trees and become pupae in the winter.According to the pests' living rhythm,we take integrated methods to control them.In the early of April,coat the trunks of coffee tree,and in the early and the middle of May and June,coat the trunks 1 to 3 times by some materials.In the Simao,the effected ratio of the coffee trees reduced from 10%～15% to 1.2‰～ 2.1‰ after the integrated control.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2002年第5期409-412,430,共5页
Journal of Southwest Agricultural University
基金
云南省和中国科学院科技合作资助项目 (YK 990 0 5)
