Plantwise Factsheets for Farmers
Recognize the problem
grasshopper is an important pest of rice. It causes heavy damage to nurseries
and reduces yield. Adults are about the size of your little finger. The body is
a shiny greenish yellow colour with three black lines on its upper side. In the
early stages, the young are yellowish, with many reddish brown spots. They
become greenish as they grow older. Adults and their young are mostly found
near grasses, water channels, ditches and rice fields. The adults and young eat
leaves at the sides first. You can see large chunks of the leaves being damaged.
During August and September they cause heavy damage and leaf shedding may
occur. Rice grasshoppers also feed on grains, resulting in empty panicles.
Rice grasshoppers feed throughout the
year on rice, maize, millet, sugarcane and other grasses. They lay eggs from
September to November in soil at the depth of your little finger. Eggs are laid
in pods and each pod contains many eggs. It sleeps between November and March and
the eggs hatch at the end of June or in early July (during the monsoon) and
start feeding on the leaves. They can travel long distances when they come out
of the ground.
- Avoid sowing alternate host
plants near the rice crop
- Cut the soil with a spade or
rake, especially in rice field bunds & water channels to destroy the
- Spray a pesticide like fenitrothion
+ BPMC (fenobucarb) @ 400 ml/acre or dust fenitrothion + BPMC @ 12 Kg /
acre when the number of grasshoppers is found to be more than 2/ sweep in
nursery or 5/ sweep in crop. Note: fenitrothion can have serious effects
- Purchase the pesticide from
an authorized pesticide dealer
When using a pesticide, always wear protective clothing and follow the instructions on the product label, such as dosage, timing of application, and pre-harvest interval.
The recommendations in this factsheet are relevant to:
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