Prevalence and Impact of the Polyphagous Caterpillar of Cabbage White Butterfly (Pieris brassicae Linnaeus, 1758) on the Marrow Stem Kale (Brassica oleracea L. var virdis)

Muzafar Riyaz and Kuppusamy Sivasankaran*

Division of Taxonomy and Biodiversity, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu, India.

*Corresponding Author's Email: ganesh_swamy2005@yahoo.com

DOI : http://dx.doi.org/10.12944/CARJ.10.1.01

Abstract:

Kale is one of the important and chiefly consumed vegetable crops of Kashmir valley. The pest infestation on the Brassica oleracea L. var virdis (Brassicales: Brassicaceae) by the polyphagous caterpillar of Pieris brassicae Linnaeus, 1758 (Lepidoptera: Pieridae) is presented in this study. The monitoring of pest infestation was assessed in the months from July-August 2021 from four different locations in the district Shopian, Kashmir, India. The present study thoroughly monitored the life stages of the polyphagous caterpillar of Pieris brassicae and its impact on the host plant. Among the larval stages of the pest, most damages was observed on the leaves by 2^nd and 3^rd instar larvae followed by the 4^th and 5^th instars respectively in non-insecticide treatment; with a higher rate of leaf damage (3.15 %) and larval incidence (1.13 %), while a lower rate of leaf damage (0.2 %) and larval incidence (0.04 %) was observed in insecticide control.

Keywords:

Caterpillar; Larval Incidence; Leaf Damage; Marrow Stem Kale; Pests; Pieris Brassicae

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