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Agri Doctor TipAgroStar Agronomy Centre of Excellence
Castor capsule borer
Now-a-days, castor may be at the spike emergence stage. During this stage, larva of capsule borer attaches the nearby capsules with the help of silken thread and its excreta and making webs. Larvae feed the developing seeds from the developing capsules by remaining inside the web. It can also damage to the top portion of the spike. No any insecticide is recommended for the control of this pest. However, farmer can spray Bacillus thuringiensis, a bacteria base powder @ 20 g or Bouveria bassiana, a fungus base powder @ 40 g per 10 lit of water.
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