Ants feed on rice seeds and seedlings. Their feeding damage cause rice seeds or plants to be missing
Armyworms feed upon leaf tips or along leaf margins, whole leaves leaving only midribs
Bacterial blight causes wilting of seedlings and yellowing and drying of leaves
Plants infected with Bacterial Leaf Streak shows browning and drying of leaves. Under severe conditions, this could lead to reduced grain weight
Sheath brown rot causes rotting in sheaths and grains of mature plants, as well as in seedlings
Bakanae is a seedborne fungal disease. It infects plants through the roots or crowns then grows systemically within the plant
Out of more than 70 species of bird found in rice fields, only five species in the Philippines (and about 14 in Southeast Asia) are known to feed on rice
Black bugs remove the sap of the plant. They can cause browning of leaves, deadheart, and bugburn
Leaf blast can kill rice plants at seedling stage and cause yield losses in cases of severe infection
When a node or neck blast infection is present, it can cause plants to develop few or no grains at all
Brown spot is a fungal disease. Its most observable damage are the numerous big spots on the leaves which can kill the whole leaf
Cloddy soils cover seeds too much. This causes problems in emergence, and limits water absorption for germination.
Dense planting of crops results in poor crop stand and competition of nutrients from the soil
Young caterpillars of cutworm eat the soft leaves of the rice plants. Fully grown cutworms can consume the entire plant
Direct seeded plants can have problems in lodging, weeds, and uneven growth
When plants experience drought, it has less ability to extract nutrients from the soil.
Dry wind conditions cause burning effects on leaves, but have no definite yield impact. Its effect varies depending on the variety.
False smut causes chalkiness of grains which leads to reduction in grain weight. It also reduces seed germination
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
Seeds planted on high spots are more prone to weed competition, and can suffer moisture stress.
IRRI Super Bag
IRRI Rice Quality Assessment Kit
Leaf Color Chart
IRRI Moisture Meter
Measuring moisture content in milling
See more videos on the IRRI RKB YouTube Channel