What is BLB in Paddy?
rice bacterial blight, also called bacterial blight of rice, deadly bacterial disease that is among the most destructive afflictions of cultivated rice (Oryza sativa and O. glaberrima). In severe epidemics, crop loss may be as high as 75 percent, and millions of hectares of rice are infected annually.
What causes BLB in rice?
It is commonly observed when strong winds and continuous heavy rains occur, allowing the disease-causing bacteria to easily spread through ooze droplets on lesions of infected plants. Bacterial blight can be severe in susceptible rice varieties under high nitrogen fertilization.
What is BLB in agriculture?
Bacterial leaf blight (BLB) is an important and devastating rice disease caused by the pathogen Xanthomonas oryzae pv. Oryzae (Xoo).
What causes bacterial leaf spot?
Bacterial leaf spot diseases are most commonly caused by Pseudomonas spp. or Xanthomonas spp. Bacterial plant pathogens often live on plant surfaces in low numbers without causing immediate symptoms. They can travel long distances on moist air currents or be moved short distances on splashing rain and irrigation.
What is the full form of BLB?
All Full Forms of BLB:
| Term | Full Form | Category |
|---|---|---|
| BLB | Balboa | Airport Code |
| BLB | Black Light Bulb | Physics Related |
| BLB | Bacterial Leaf Blight | Pathogens & Diseases |
| BLB | British Listed Buildings | Buildings & Landmarks |
What is leaf blight of paddy?
Bacterial leaf blight in rice is a destructive bacterial disease that was first observed in 1884-1885 in Japan. It is caused by the bacterium Xanthomonas oryzae pv. oryzae. It is present in rice cropping regions of Asia, Africa, Australia, Latin America and the Caribbean and very rarely in the United States (Texas).
How is bacterial blight treated?
If you have had problems with bacterial blight, you may want to use a combination of copper and mancozeb-containing fungicides for control. Apply fungicides two to three times at seven to 10 day intervals as leaves emerge, but before symptoms develop.
Is Xanthomonas a bacteria?
Xanthomonas is a Gram-negative, aerobic, short rod-shaped bacterium belonging to the family Pseudomonadaceae. This genus includes several pathovars, which are mainly plant pathogens.
How do you control bacterial leaf blight in paddy?
Terramycin 17, Brestanol, Agrimycin 500 and a combination of Agrimycin 100 + Fytolan gave effective control of the blight phase of the disease. The combination of Agrimycin 100 + Fytolan spraying gave good control of the disease and an economic return on susceptible varieties like Sona.
How is blight treated?
Treating Blight Once blight is positively identified, act quickly to prevent it from spreading. Remove all affected leaves and burn them or place them in the garbage. Mulch around the base of the plant with straw, wood chips or other natural mulch to prevent fungal spores in the soil from splashing on the plant.
How do you treat leaf streaks?
If you grow daylily varieties that suffer from severe leaf streak every year, consider applying fungicides containing chlorothalonil, mancozeb or thiophanate-methyl to prevent the disease.