Author(s):

Hadi Husain Khan, Ashwani Kumar and Huma Naz

Abstract: Cabbage is one of the most popular winter vegetables grown in India (Cabbage Farming- Agro Farming). Pieris brassicae Linn. (Lepidoptera: Pieridae) is one of the major constraints in commercial cultivation of the crop in hill and plain areas of Uttarakhand and also it is reported in some parts of East Uttar Pradesh. Different control measures are recommended to control this pest among which chemical control is also important. Many researches applied different chemical and biological insecticides for the management of cabbage butterfly, Pieris brassicae (L.). Deshmukh and Adarsh studied the toxicity of commercial grade insecticides against larvae of Pieris brassicae. Among which, carbofuran proved to be the most toxic at LC₅₀ and LC₉₅ levels, while the other insecticides differed in their order of toxicity at the two levels. Szwejda conducted a field and laboratory studies for two years and reported that, all tested pesticides at 0.05% a.i. gave good control of Pieris brassicae.Varma reported that four different preparations of Bacillus thuringiensis were tested, each at 0.5, 1 and 1.5 g/litre, against larvae of Pieris brassicae (L.) on cauliflower leaves in petri dishes. Treated leaves were replaced with untreated ones after 48h, and mortality counts were made 2-6 days after offering the treated leaves. All the bacterial preparations and concentrations were significantly superior to control treatment and gave 100% mortality at six days after treatment. Tatchell and Payne tested a purified granulosis virus isolated from Pieris brassicae against Artogeia rapae (L.). Within 10 days of a spray application of the virus, there was a significant reduction in the mean larval population in all the treated plots as compared with untreated plots.

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