06.04.2013 Views

Rainfed rice - IRRI books - International Rice Research Institute

Rainfed rice - IRRI books - International Rice Research Institute

Rainfed rice - IRRI books - International Rice Research Institute

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Pest control in rainfed upland <strong>rice</strong><br />

Pest Control Alternatives for the <strong>Rainfed</strong> <strong>Rice</strong> Ecosystem<br />

Name of pest Damage Control measures<br />

Stem borers Bore into stem, causing deadheart at Early planting, pheromone<br />

(all ecosystems) tillering stage and chaffy white earhead at traps of different types or<br />

panicle formation stage. Serious problem Bacillus sp. or nuclear<br />

from November onwards. Worst pest of polyhedrosis virus,<br />

summer paddy.<br />

predators and parasitoids;<br />

internal feeders; caterpillars.<br />

Leafhoppers and<br />

planthoppers<br />

(shallow and intermediate<br />

system)<br />

Leaf roller<br />

(shallow and irrigated)<br />

Gundhi bug<br />

(upland, shallow and<br />

irrigated)<br />

<strong>Rice</strong> hispa<br />

(shallow - Assam, Bihar,<br />

West Bengal, Orissa<br />

coastal)<br />

Caseworm<br />

(intermediate and<br />

shallow)<br />

Termites<br />

(drought areas)<br />

Sap-sucking insect. Numerous green, white<br />

and brown jassids puncture leaves and<br />

sheaths and suck sap. Leaves become<br />

browny yellow and dry from the tips. Plants<br />

look sickly and stunted. Brown and white-<br />

backed planthoppers congregate around the<br />

lower part of stem and suck sap, causing leaf<br />

yellowing and drying. Plants dry in circular<br />

patches, known as hopperburn. Transmit<br />

virus diseases.<br />

Leaf-eating insect. Green caterpillars fold<br />

and stick leaves sideways or from tip<br />

downwards, remain inside and feed on<br />

green matter; leaves look whitish.<br />

Grain-sucking insect. Adult and young<br />

stinkbugs puncture and suck milky<br />

grains, causing several chaffy white<br />

grains in the earhead.<br />

Leaf-feeding insect. Adults eat green leaf<br />

and white parallel lines appear. Larvae<br />

feed inside the leaves.<br />

Leaf-eating insect. Caterpillars cut leaf<br />

tops, make tubular cases hanging from<br />

leaves, remain inside and feed on green<br />

tissues of leaves. Fields look whitish.<br />

Attack young plants, feed on roots and<br />

underground parts, causing wilting and<br />

death of the plants. Severe in well-<br />

drained light soils.<br />

Lower parts of plants must<br />

be thoroughly covered for<br />

effective planthopper<br />

control. Monitoring is<br />

important for planthopper<br />

management. Apply 100 kg<br />

neem cake/ha at puddling<br />

for planthopper control.<br />

Foliar spray of cow dung<br />

slurry or only 0.1%<br />

asafoetida suspension.<br />

Grow tolerant varieties,<br />

foliar spray with 1% neem<br />

product (nimidine). Grow<br />

Cajanus cajan on bund.<br />

Dip a rope in kerosene oil<br />

and run it through the<br />

field. Hispa will drop in<br />

water and die.<br />

The cases can be<br />

destroyed by moving a<br />

rope on the crop and<br />

collecting them at one<br />

point from the water and<br />

destroying the larvae.<br />

Before sowing, apply 20<br />

kg karanj cake or neem<br />

cake in soil and Lantana<br />

camara plant ash.<br />

247

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!