Chemical Control of Cotton Thrips

Cotton thrips

Polyphagous and very widely distributed. Occurs at all stages of crop growth starting from seedling stage. Also attack soybean, tobacco and some flower crops.

Appearance:

Chemical Control of Spotted Bollworm in Cotton

• Use neem based insecticides like 5% neem seed kernel extract (NSKE) and commercial neem based formulations @ 500-600 ml/ha, starting from 45 days age of the crop.

     Mechanical Control of Spotted Bollworm in Cotton

• Collection and destruction of infested bolls.

• Collection and destruction of plant debris and trash before sowing.

      Cultural Control of Spotted Bollworm

• Plough deeply to expose resting pupae to hot sun.
• Avoid use of nitrogen fertilizers at the reproductive stage.

Spotted Bollworm in Cotton

Present in many Old World cotton growing areas. In India Earias insulana is noticed in northern part of the country whereas E. vitella is a common pest in southern region. The pest feeds on alternative host plants like Hibiscus, Holyhock, Sunhemp, China rose, bhendi, pundi, Abutilon indicum etc.

Chemical Control of Tobacco Caterpillar in Cotton

 Tobacco Caterpillar in  cotton

Cosmopolitan and Polyphagous pest attacking rice, tobacco, tomato, maize, citrus, castor, groundnut, legumes and many other vegetables.

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Chemical Control of Semilooper in Cotton

• Spray acephate 75 SP @ 1 g/l or Profenophos 50 EC @ 2 ml/l

Cotton Semilooper

It is a sporadic pest and sometimes causes serious damage to the crop.

Appearance: