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Disease management

Onion diseases  have always been an important factor for the loss. To combat these we need to identify the symptoms, understand the exact cause beneath and endeavour effective measures to irradicate the pathogen at the earliest as possible

 

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Pest managemntIt is important that onion Pest be recognized early in their development so that effective management strategies can be implemented. Thrips are the most important insect pests on onions. Adults are yellowish to yellowish brown with narrow wings 

 

 
 

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Onion Cut worms

Symptoms : The larvae of this insect are seen in nursery beds and newly transplanted onion fields. The tender plants are found damped at ground level during the night Young larvae feed gregariously on foliage but later segregate and enter into soil. Young larvae are yellowish grey and later on become brown, greasy to touch and coil when disturbed. They cut the seedlings at ground level during night and hide during day.

Control: Soil application of Carbofuran (1kg a.i./ha) at the time of planting is recommended. Chlorpyriphos (5ml/litre of water) also gives good control of this pest.

More Pests Thrips Head Borer Maggot Nematode Cut-worms

 

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