Effect of Host Species on Biology of Parasitoid, Microplitis manilae Ashmead (Hymenoptera: Braconidae)
DOI:
https://doi.org/10.14456/jare-mju.2024.24Keywords:
biological control, parasitization, fall armyworm, insect natural enemyAbstract
Microplitis manilae is an endoparasitoid that parasitizes larvae in the genus Spodoptera. In Thailand, three species of spodoptera, namely the fall armyworm (Spodoptera frugiperda), common cutworm (S. litura) and beet armyworm (S. exigua), are found in high numbers. The biological control method using parasitoids is an alternative method for reducing insecticide applications. This research investigated the biological aspects of M. manilae, focusing on its developmental period, percentage parasitism, sex ratio of offspring, longevity and fecundity when parasitizing three hosts (fall armyworm, common cutworm, and beet armyworm). Our findings revealed a significant influence of the host species on M. manilae is biology. S exigua caused the highest percentage parasitism (41.66%), a higher female to male ratio (1:0.9) and the most fecundity rate (16.70 eggs per female). While S. exigua emerged as the most suitable host for mass rearing M. manilae for augmentative biological control and followed by S. frugiperda and S. litura proved to be unsuitable.
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