Armyworms feed upon leaf tips or along leaf margins, whole leaves leaving only midribs.
Green leafhoppers are the most common leafhoppers in rice fields and are primarily important because they spread the viral disease tungro.
Brown planthoppers transmit ragged stunt and grassy stunt diseases.
Rice bugs damage rice by sucking out the contents of developing grains from pre-flowering spikelets to soft dough stage, therefore causing unfilled or empty grains and discoloration.
Leaffolders feed inside the folded leaf creating longitudinal white and transparent streaks on the blade.
Stem borers can destroy rice at any stage of the plant from seedling to maturity.
Ants feed on rice seeds and seedlings. Their feeding damage cause rice seeds or plants to be missing.
Black bugs remove the sap of the plant. They can cause browning of leaves, deadheart, and bugburn.
Crickets feed on leaves by making irregular to longitudinal exit holes. They also feed on stems, seeds, roots, and on young panicles of the rice plant.
Young caterpillars of cutworm eat the soft leaves of the rice plants. Fully grown cutworms can consume the entire plant.
Young larvae of semiloopers scrape the tissues from leaf blades, while mature larvae feed on leaf edges to create notches.
Larvae of green horned caterpillars feed on leaf margins and leaf blades. The feeding damage causes removal of leaf tissues and veins.
IRRI Rice Quality Assessment Kit
Leaf Color Chart
IRRI Super Bag
IRRI moisture tester
Moisture content calculations
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