Seedling wilt or kresek Observed 1-3 weeks after transplanting Green water-soaked layer along the cut portion or leaf tip of leaves as early symptom Leaves wilt and roll up and become grayish green to yellow Entire plant wilt completely Bacterial Leaf blight Water-soaked to yellowish stripes on leaf blades or starting at leaf tips with a wavy margin Leaves with undulated yellowish white or golden yellow marginal necrosis, drying of leaves back from tip and curling, leaving mid rib intact are the major symptoms. Appearance of bacterial ooze that looks like a milky or opaque dewdrop on young lesions early in the morning Severely infected leaves tend to dry quickly loss in grain yield may be up to 60%.
To distinguish kresek symptoms from stem borer damage, the lower end of the infected seedling can be squeezed between the fingers. Yellowish bacterial ooze may be seen coming out of the cut ends.The cut portion can be observed against the light to see the bacterial ooze streaming out from the cut ends into the water.