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03
Aug

Rice armyworm

1. Army worm (Spodoptera mauritia) is a sporadic pest on rice and severely occurs in Umraiang valley of Jowai district in Meghalaya, valley land of Manipur and Tripura. 2. Caterpillars feed on leaves and in severe infestation entire seedbeds and fields are destroyed and the fields appear as if it has been grazed by animals/cattle. 3. The larvae feed voraciously in the night and hide in the cracks and crevices of the soil during daytime.

03
Aug

Rice caseworm

1. Case worm (Nymphula depunctalis) is one of the serious pests in many areas of the NE region. 2. Adults of case worm are 6 mm long with wingspan of 15 mm. Slender green coloured caterpillars cut leaf blades into length of about 1.25 cm out of which they make tubular cases with which they feed and float while moving plant to plant. During heavy damage, leaves are skeletonised and appear whitish i

03
Aug

Rice leaf roller

1. Leafroller or leaf folder (Cnaphalocrocis medinalisi is a common pest on upland and lowland rice. 2. The larva rolls the leaf blade by fastening the edges and feed within by scraping mesophyll or the green matter. 3. Feeding reduces productive leaf area that affects plant growth. High infestation often gives a sickly appearance to the field with white patches. 4. If the infestation continues u

03
Aug

Rice Stem borer

1. The stem borer (Scirpophaga incertulus) is a major pest of rice and distributed throughout the region. The female moth has bright yellowish brown fore wings with a black spot on each and an anal tuft of yellowish hairs. 2. The males do not have the black spot on the fore wings. Eggs are laid near the tip of the leaves covered with buff coloured hairs. Each egg mass contain 20-25 eggs and a fema
03
Aug

Important Pests of assam

The economically important insects causing considerable damage to rice crop in this region are 1. Stem borer 2. Leafroller 3. Caseworm 4. Armyworm 5. Thrips 6. GalI midge 7. Rice hispa 8. Rice ear cutting caterpillar 9. Rice green semilooper 10. Gundhibug 11. Root aphids 12. Horned caterpillar 13. Skipper 14. Slug caterpillar
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