The Bacterial leaf blight disease of paddy is one of the major diseases seen in rice crops. The causative organism here is the Xanthomonas oryzae. It is a serious disease for the crops as it can cause major losses in yield and could also lead to an outbreak in the area. Effective control measures are necessary to keep this pathogen in check.
Symptoms of Bacterial Leaf Blight
- The most common symptom of bacterial leaf blight of paddy is the appearance of yellow stripes along the leaf blade.
- The seedling may wilt.
- Bacterial oozes on the leaves are common.
- The yellow lesions may turn white as the disease progresses.
- Keep the field clean and free of weeds.
- Avoid flow of irrigation water from affected field.
- Let the field dry completely before the ploughing process.
Some effective chemicals to control Bacterial Leaf Blight in Paddy
- V-Cure Fungicide Plus Bactericide is an effective solution against bacterial leaf blight of paddy. It is an organic cationic surface product having potassium and sodium salts. It is applied in the soil and can work against a variety of pathogens. The recommended dosage is 1.5 to 2 gm of product in one litre of water.
- Cristocycline is a chemical bactericide made of Streptomycin sulphate 90% and Tetracycline hydrochloride 10% SP in a ratio of 90:10 respectively. It is most effective after the infestation. You can mix 6 gm of the product in 50 litres of water and spray the mixture on the foliage of the affected plants.
- Geomycin is a natural and organic antibiotic, effective against bacterial diseases. It is made of plant extracts which help curb the disease and promote the growth of the plants. It can also improve the natural immunity of the crops. Mix 0.5 to 1 gm in one litre of water and spray the mix.
- Conika is a powerful combination that can work against both fungi and bacteria. It works faster and can give long-term effects in preventing diseases. The chemical content is Kasugamycin 5% and Copper oxychloride 45% WP. It works by contact as well as systemic action by rapid absorption by plants and prevents the growth of pathogens inside the plant. The recommended dosage is mixing 1.5-2 gm in 1 litre of water or 300 gm for an acre.
Regular application of the chemical measures will be required. It must also be used at the specified intervals for best results.