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Biology of Rice swarming caterpillar

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1. Egg: Eggs are spherical and creamy in colour, which are laid in a group covered over with grey hairs.

2. Larva: The caterpillars are light green with yellowish white lateral and dorsal stripes in the early stages and later become dark brown or grayish green in colour with a crescent (semi-circular) shaped black spot on the side of each segment (Fig. 10).

3. Pupa: They pupate inside the soil in earthen cocoons. Pupa is dark brown and measures 16-17 mm long.

4. Adult: The adult moth is medium sized, stout built dark brown with a conspicuous triangular black spot on the forewings. Hind wings are brownish white with thin black margins.

File Courtesy: 
BAU Ranchi
Photo Courtesy: 
BAU Ranchi
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