Insects (2022) 13 (7 - 661)

Seyed Ali Hemmati, Parviz Shishehbor and Lukasz L. Stelinski (2022)
Life table parameters and digestive enzyme activity of Spodoptera littoralis (Boisd) (Lepidoptera: Noctuidae) on selected legume cultivars
Insects 13 (7 - 661)
Abstract: Spodoptera littoralis (Boisd) is a highly polyphagous and destructive pest, which attacks a wide range of economically important crops throughout the world. The extensive use of conventional insecticides for management of S. littoralis has resulted in development of resistance to major classes of pesticides and can have a negative impact on the environment. It is necessary to investigate alternative pest management approaches that are more cost-effective and sustainable than conventional insecticides. The aim of this study was to identify potential sources of variation in resistance/susceptibility of legume cultivars to S. littoralis, and to describe potential interactions between cultivar traits and digestive function of this pest. We conducted life table analyses and assessed both proteolytic and amylolytic activities of S. littoralis on 11 common legume cultivars. The findings indicated that S. littoralis reared on the common bean, Arabi, displayed the highest intrinsic rate of increase, while the lowest was recorded on the cowpea, Mashhad. Developmental time of S. littoralis larvae was negatively correlated with protein content, while amylolytic activity was positively correlated with starch content of legumes. Our results revealed that the Mashhad cultivar exhibited tolerance traits against S. littoralis, which may prove useful for integrated programs that aim to reduce chemical inputs.
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Full text of article
Database assignments for author(s): Parviz Shishehbor, Lukasz Stelinski

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Spodoptera littoralis	Beans (Phaseolus)	Iran