Brown Plant hopper in Rice ( text from http://www.ncipm.org.in )

Identification
The adults are brown in colour with brown eyes and measures 3.5- 4.5mm
in length. Their legs are light brown and the tarsal claws are black.
The wings are hyaline with brown markings and dark veins. The nymphs
are brownish- black in colour and have greyish- blue eyes.

Management

Closer spacing of 15x10cm creates favourable microclimate in
field for rapid development of hopper population. Hence, a spacing of
20x15cm should be followed.

Alternate drying and wetting the field during peak infestation
and draining out the standing water from the field 2-3 times checks
the population of the hopper to a large extent.

Alley 30cm wide after every 3 meters of rice planting provides
proper aeration to the crop, which ultimately restricts the
multiplication of the pest. Making of alleys also helps in
insecticidal spraying as applicator can move freely in the field.

Spray at ETL of 5-10 insects/ hill. 625g of carbaryl 50WP or
625ml of fenthion 1000EC or 2.0 litres of quinalphos 25EC or 1 litre
of chlorpyriphos 20EC in 250 litres of water per ha. Repeat
application if hopper population persists beyond a week after
application. While spraying nozzle should be directed at the basal
portion of the plants.