Abstract

The effect of a traditional stored chickpea protection method on occurrence of Adzuki bean beetle and its natural enemies was studied using cultivars Natoli and Arerti. Quncho, a white-seed tef, was admixed with chickpea grain on replacement basis at the rate of 0% (10 kg chickpea grain), 5%, 10%, 15%, 20%, 25%, and 30%. Each treatment was replicated three times and arranged in two factors nested design. None of the chickpea–tef mixture treatments did affect the occurrence of Adzuki bean beetle and its natural enemies; while chickpea cultivar significantly affected all studied variables. Thus, there were lower numbers of grains with eggs; eggs per grain; grains with holes; holes per grain; Adzuki bean beetle emergence holes per grain; and natural enemy emergence holes per grain on grains of Arerti than on grains of Natoli. But percentage parasitism was markedly greater on Arerti than Natoli. Anisopteromalus calandrae and Dinarmus basalis were the natural enemies of Adzuki bean beetle found in chickpea–tef mixture and together they caused up to 98% larval parasitism in grains of Arerti and 56% in Natoli.

摘要

使用品种 Natoli 和 Arerti 研究了传统储存鹰嘴豆保护方法对红小豆甲虫及其天敌发生的影响。Quncho 是一种白籽 TEF，在替代基础上与鹰嘴豆籽粒混合，比例为 0%（10 千克鹰嘴豆籽粒）、5%、10%、15%、20%、25% 和 30%。每个处理重复3次，并按两因素嵌套设计排列。鹰嘴豆-tef 混合物处理均未影响小豆甲虫及其天敌的发生；而鹰嘴豆品种显着影响所有研究变量。因此，含鸡蛋的谷物数量较少；每粒鸡蛋；有孔的颗粒；每粒有孔；红豆甲虫每粒羽化孔数；Arerti 籽粒的天敌出现孔数高于 Natoli 籽粒。Anisopteromalus calandrae和Dinarmus basalis是鹰嘴豆-tef 混合物中发现的红小豆甲虫的天敌，它们共同导致 Arerti 籽粒中高达 98% 的幼虫寄生，而 Natoli 籽粒中高达 56% 的幼虫寄生。