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Pink bollworm causes failure of buds to open, fruit shedding, lint damage and seed loss. Pink bollworm is a worldwide pest of cotton and in some regions of the world, it is the key cotton pest.
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Pink bollworm eggs are deposited on or near the cotton bolls at the time of flowering.
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Young larvae emerge after 3-5 days, entering the cotton bolls shortly after emergence where they feed internally within the pod, making a small hole in the exterior to allow air to penetrate.
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Larvae usually pass through four instars. Pupation takes place in the ground, about 50 mm below the surface and adults emerge after about 9 days. Adults are nocturnal and females begin laying eggs a day or two after emergence, typically laying 200-400 eggs each.
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Control:- Profenova Super (Cypermethrin 4% + Profenophos 40% EC) @400-600 Liter/Acre, Danitol (Fenpropathrin 10% EC) 300-400 Liter/Acre.
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