Disease,Bacteria,Leaves,Blight

Bacterial leaf blight - BLB (Hawar daun bakteri)

Bacterial leaf blight (BLB) is a widespread bacterial disease and reduces yields by up to 36%. The disease occurs in the rainy or wet-dry season, especially in paddy fields that are constantly flooded and fertilized with high N (> 250 kg urea/ha). BLB disease produces two distinctive symptoms, namely crackle, and blight. Crackle is a symptom that occurs in plants <30 days old (nursery or newly moved). The leaves are gray-green, folded, and curled.

Red Stripe (Hawar daun jingga)

Cause: Unknown Red Stripe (URS) or Red Stripe (RS) is a relatively new rice disease that was first discovered in Subang, West Java, in 1987. This disease generally occurs in leaves, rice fields with poor drainage conditions, and plants that have reached the generative growth phase. This disease causes the grain is not to be fully filled or even empty. HDJ is negatively correlated with site height because the higher the site, the milder the disease.

Sheath Blight (Hawar pelepah)

Sheath blight is a significant disease in rice plants. This disease destroys the midrib, so it is necessary to open the planting canopy to find and recognize the condition. The disease causes plants to fall quickly. The earlier it falls, the greater the loss it causes. This disease causes the grain to be less filled or even empty. Sheath blight usually occurs when the plant begins to form tillers until just before harvest.