10个香蕉品种对香蕉假茎象甲田间抗性的评价

Field evaluation of the resistance of 10 banana varieties to the banana pseudostem weevil Odoiporus longicollis Oliver

调查分析了10个香蕉品种上香蕉假茎象甲的发生指数和危害率。结果表明,6-8月所有品种上香蕉假茎象甲发生指数、危害率较高,12月至次年2月较低。其中,抗枯5号上香蕉假茎象甲发生指数和危害率最高,分别为0.374和70.0%;孟加拉菜蕉最低,分别为0.034和4.3%。综合分析认为5类香蕉对香蕉假茎象甲的抗性程度由高到低依次为野生蕉、大蕉、龙牙蕉、粉蕉、香牙蕉。

The population index and damage ratio of the banana pseudostem weevil Odoiporus longicoUis Oliver on 10 banana varieties were investigated in this paper. The results revealed that the population indices and damage ratios of the weevil were high during June and August, while low from December to next Februrary. Among all varieties, the population index and damage ratio of the weevil on Kangku 2 were the highest as 0.374 and 70.0%, while the least as 0.034, and 4.3% on Bangladesh vegetable banana. The resistance levels from the high to low order were wild banana, Plantain banana, Aralia banana, Musa ABB Pisang awak, and Musa AAA Group Cavendish.