JOURNAL OF LIAONING TECHNICAL UNIVERSITY

(NATURAL SCIENCE EDITION)

LIAONING GONGCHENG JISHU DAXUE XUEBAO (ZIRAN KEXUE BAN)

辽宁工程技术大学学报(自然科学版)


ECO-FRIENDLY MANAGEMENT OF CABBAGE BUTTERFLY LARVAE (P. brassicae) AND ITS EFFECT ON YIELD

Shahir Yar, Atif Ali, Aqil Hussain, Assadullah Habib, Zafar Ullah, Sami Ullah, Munir Ahmad Rind, Sindhu Abbasi, Sakhawat Ali, Muhammad Kamran, Zarnosh Habib


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Abstract:

Cabbage (Brassica oleracea) is a vital crop globally, both economically and nutritionally, providing income for farmers and serving as a dietary staple. Many insects’ pests attack on cabbage crop but cabbage butterfly larvae (Pieris brassicae) is one of the most destructive insects. The experiment was conducted in farmer field during 2023, aimed to assess the effectiveness of botanical extracts viz, Tobacco fresh leaves, Chinaberry leaves, Parthenium leaves, and Green Chili extract against cabbage butterfly larvae and their influence on cabbage yield.  The experiment was randomized complete block design (RCBD) with three replications and a total of two sprays was applied at 14 days interval. The results showed that Green Chili Extract was the most effective, achieving (83.70%) reduction in larval populations, followed by Chinaberry Leaves Extract (77.50%) reduction, while lowest was recorded in Tobacco Fresh Leaf Extract (69.54%) and Parthenium Leaves Extract (65.12%) had mean percent reduction respectively which was statistically non-significant. The highest yield was observed in plot treated with Green Chili Extract (784.67 kgha-1), followed by Chinaberry Leaves Extract (631.67 kgha-1), statistically significant, while Tobacco Fresh Leaf Extract (568.67 kgha-1) and Parthenium Leaves Extract (573.33 kgha-1) was statistically non-significant. Lowest yield was observed in control plot (433.67 kgha-1). The highest CBR was recorded in plot treated with Green Chili Extract (5.11), followed by Chinaberry (3.01), Tobacco extracts (2.95), while lowest was recorded in plot treated with Parthenium leaves (2.12). It is concluded from the study that all the botanical extracts were most effective against cabbage butterfly larvae management. It is recommended that the green chili extract showed best results among all botanical extracts. Further research is needed to explore these botanical extracts for used against different insect pests of other crops.

Keywords: Cabbage butterfly, Botanical extracts, Yield and CBR

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