| Leaf scald | Biotic stress | leaf scald disease development usually occurs late in the season on mature leaves and is favored by wet weather, high nitrogen fertilization, and close spacing. | leaf scald disease in rice, leaf scald symptoms, how to manage leaf scald, chemicals for leaf scald |
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| False smut | Biotic stress | False smut causes chalkiness of grains which leads to reduction in grain weight. It also reduces seed germination. | false smut in rice, false smut symptoms, smut balls in rice, how to manage false smut, chemicals for false smut |
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| Brown spot | Biotic stress | Brown spot is a fungal disease that infects the coleoptile, leaves, leaf sheath, panicle branches, glumes, and spikelets. | brown spot disease in rice, symptoms of brown spot in rice, how to manage brown spot in rice, chemicals for brown spot |
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| Blast | Biotic stress | Blast is caused by the fungus Magnaporthe oryzae. It can affect all above ground parts of a rice plant: leaf, collar, node, neck, parts of panicle, and sometimes leaf sheath. | leaf blast, collar blast, neck blast, node blast, symptoms of blast disease in rice, management practices for blast |
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| Bakanae | Biotic stress | The disease occurs most frequently when infested seeds (i.e. seeds covered in fungal spores) are used, but also can occur when the pathogen is present on plant material or in the soil. | seedborne fungal disease in rice, bakanae in rice, symptoms of bakanae disease, how to manage bakanae disease in rice |
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| Bacterial leaf streak | Biotic stress | Bacterial leaf streak occurs in areas with high temperature and high humidity. It is transmitted through seeds and infected stubbles to the next planting season. | bacterial leaf streak disease in rice, leaf streak lesions, how to manage bacterial leaf streak, symptoms of bacterial leaf streak |
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| Bacterial blight | Biotic stress | The disease is most likely to develop in areas that have weeds and stubbles of infected plants. It can occur in both tropical and temperate environments, particularly in irrigated and rainfed lowland areas. | bacterial blight in rice, symptoms of bacterial blight, how to identify bacterial blight, how to control bacterial blight disease |
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| Termite | Biotic stress | Termites infest upland paddy but it also attack in lowland where there is no assured irrigation/water stagnation. Termite colony attacks on germinating seed or growing root causing complete drying of crop | termite in rice, how to identify termite damages, how to manage termite in rice |
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| Panicle mite | Biotic stress | Panicle mite feeds on the developing panicles from boot stage to milk stage of heading and causes spikelet infertility, plant sterility and characteristic deformation of grains | panicle mite in rice, symptoms of panicle mite damage, how to manage panicle mite, chemical recommendation for panicle mite |
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| Leaf mite | Biotic stress | The leaf mite is minute and colonizes the under surface of leaves in large numbers. Through the sucking of the leaf sap, it causes white speckles on the upper surface which eventually turn yellow or brown as they dry up. | leaf mite in rice, leaf mite symptom photos, how to identify leaf mite damage, how to control leaf mite |
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