云南河口香蕉褐足角胸叶甲的为害动态分布研究  

Dynamic Harm Distribution of Banana Basilepta fulvipes in Hekou, Yunnan

作　　者：陈伟强 邓成菊 张建春 李芹 刘学敏 赵素梅 胡原鸿 杨绍琼 王晓燕 黄绍忠 何旭 谢艺贤[4] 

机构地区：[1]云南省红河热带农业科学研究所,云南河口661300 [2]河口瑶族自治县农业局水果站,云南河口661300 [3]河口瑶族自治县科学技术局,云南河口661300 [4]中国热带农业科学院环境与植物保护研究所,海南儋州571737

出　　处：《热带农业科学》2015年第3期54-61,共8页Chinese Journal of Tropical Agriculture

基　　金：云南省科研院所技术开发专项(No.2014DC025);农业部热带作物种质资源保护财政专项(No.14RZZY-40);云南省科技富民强县计划(No.2011EB10301);农业部热带农林有害生物入侵监测与防控控重点开放实验室基金(No.MACKL1008)

摘　　要：采用大棚饲养及连续2年定点监测、分级调查等研究方法对云南河口香蕉褐足角胸叶甲进行动态分布规律研究。结果表明：香蕉受褐足角胸叶甲危害的高低与温度、湿度密切相关,与发生危害的田间消长规律成正比;12月至翌年3月份的温度、湿度为每年当中的最低值,其危害率、危害指数最低,仅为0-3.08%及0-0.77;5-9月份尽管温度都很高,但仅5-6及8-9月降雨量最多,出现了2次高峰值,危害率、危害指数达到28.67-57.22%、7.17-14.61及31.56-32.78%、7.58-8.22;大棚饲养年发生3代,世代重叠,5-6月、8月上旬及11月成虫出土,尤以5-6月高峰值最大,大棚饲养成虫消长与田间消长呈现正相关性;热量、降雨的高低差异使得不同地区的危害及种群动态分布差异十分明显,河口东部地区香蕉褐足角胸叶甲发生危害〉河口西部地区〉河口中南部地区;排除山地逆温现象最为普遍的河口中南部地区,在正常年份的降雨条件下,海拔越低温度越高,其种群繁育数量越多,危害越重。Greenhouse feeding, Fixed-poi nt monitoring of two years and classification survey were used for studying dynamic distribution of banana Basilepta fulvipes in hekou. the results show that harm of banana Basilepta fulvipes closely associated with humidity, temperature, and in proportion to the field growth and decline regularity which harm was happened. The humidity and temperature during December to March next year is lowest in a year, its harm rate and pest index is lowest ,it is only between 0-3.08%and 0-0.77. the temperature was very high in May to September, but the rainfall only in May to June and August to September are most, which appeared twice peak, harm rate and pest index reached two peeks. The harm rate were 28.67-57.22% and 31.56-32.78% .The pest index were 7.17-14.61 and 7.58-8.22. The Basilepta fulvipes has three generations, generations overlap, adult emergence in May, June, August and early November, the maximum peak between the May and June. The adult＆#39;s occurrence regularity are positive correlation between the greenhouse and the field.The distribution difference of heat and rainfall are obviously which affect the population dynamics distribution and harm of Basilepta fulvipes in different areas. the harm degree of the banana Basilepta fulvipes from serious to slight is east, west then south central. In addition tohe occurrence of mountain temperature inversion mostly appears in south central, the higher the altitude, the lower temperature, the more number of species breeding, the heavier harm under the condition of normal rainfall. .

关 键 词：云南河口 褐足角胸叶甲 动态分布规律 危害率 虫情指数 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治]