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Posts tagged Bacterial Leaf Streak

Bacterial Leaf Streak Of Rice

This article is co-authored by Lorelvn Joy Turnos, a research associate of Pioneer Hi-Bred Philippines based in Mindanao. For further information on this article, send your inquiries to mark.nas@pioneer.com.

In this issue, we will talk about another important bacterial disease of rice known as bacterial leaf streak (BLS), which is caused by the bacterium Xanthomonas oryzae pv. Oryzicola. The disease is less popular and less invasive than bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae, but is generally more prevalent and infectious during rainy seasons.

Symptoms and mechanisms of damages of the two bacterial diseases are almost similar. Hence, it is very important for the rice growers to gain skills and expertise in distinguishing what particular causal organisms are attacking their fields, and what types of symptoms are manifested by the crops. BLS infection usually comes in earlier than BLB, wherein disease symptoms become noticeable 40 to 45 days after seeding (DAS).

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Beware of Bacterial Leaf Streak

Non-stop rain is a double-edged sword. On one side, you can have a relatively good night sleep because of the cold weather. On the other hand, farmers will surely fret at the thought of bacterial diseases invading their rice farms

Bacterial leaf streak (BLS) is one of these diseases. Less invasive and less popular than bacterial leaf blight (BLB), BLS is more prevalent when it rains non-stop like these days.

According to Dr. Hoai Xuan Truong, plant pathologist from PhilRice, BLS damage ranges from 10 to 20 percent when most of the leaves are infected.

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