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1. Grasshoppers can damage rice at all stages of crop growth.
2. Both nymphs and adults feed on leaves by cutting the edges of leaves at all the growth stages of the rice crop.
3. Damage is found more on the margins of the field.
4. They sometimes cut the plants similar to cut worms.
5. When the grasshoppers are in greater numbers they can even feed on the midribs and total leaves and cause extensive defoliation.
Punjab Agricultural University, Ludhiana