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Onion maggot is a very small white colored insect and it causes a lot of damage to onion tubers.
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In large tubers, 9 to 10 maggots attack simultaneously and make it hollow. Due to this, onion bulb rots completely.
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Symptoms of its infestation appear as wilting and yellowing of leaves, after which the leaves start falling. Leaves may rot and plants may die as infestations progress.
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Onion plants are most vulnerable during the seedling stage, and seedlings can be killed by larval feeding.
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These insects can cause damage to the onion crop throughout the crop cycle, although they are widely known to frequently infect the crop during the vegetative stage.
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If the attack of this pest occurs in the last stage of the crop, then due to this the possibility of storage rot problem increases.
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To control maggots in Onion, use Caldan 4G (Cartap Hydrochloride) @ 7.5 kg/acre or Fax GR (Fipronil 00.30% GR) 8.0 kg/acre.
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