KAU Package of Practices Recommendations: Crops, 2002

Foliar Sprays
A. Non systemic
1.	Zineb	2 kg/ha	Control blast, brown leaf spot, narrow leaf spot and sheath blight
2.	Mancozeb	2 kg/ha	Can be used against leaf spot diseases but more generally used against brown leaf spot
3.	Ediphenphos	500 ml/ha	Control sheath rot, sheath blight, blast and brown leaf spot
4.	Thiophonate	500 g/ha	Control sheath blight and blast
B. Systemic
1.	Kitazin	500 ml/ha	Against blast
2.	Carbendazim	500 g/ha	Control sheath blight and sheath rot
3.	Carboxin	500 g/ha	Control sheath blight and sheath rot
4.	Benomyl	500 g/ha	Against sheath blight
5.	Hexaconazole 5EC	800-1000 ml/ha	Against sheath blight
6.	Propeconazole 25EC	0.5 to 0.75 ml/l	Against sheath blight
C. Antibiotics
1.	Aureofungin sol	60 g/ha	Control blast and brown leaf spot.
2.	Streptocycline	15 g / 300 l/ha	Against bacterial blight
3.	Agrimycin	100-750 g /500 l/ha	Against bacterial blight
4.	Paushamycin	750 g / 500 l/ha	Against bacterial blight
5.	Plantomycin	750 g / 500 l/ha	Against bacterial blight
6.	Validamycin 3% liquid	1000 ml / 500 l/ha	Against sheath blight.
D. Biocontrol: Apply fluorescent pseudomonas for the control of fungal and bacterial diseases (Ad hoc recommendation; See chapter on biocontrol agents)

Note:

1. Spray fresh cowdung extract for the control of bacterial blight. Dissolve 20 g cowdung in one litre of water; allow to settle and sieve. Use supernatant liquid.

2. Application of bleaching powder @ 5 kg/ha in the irrigation water is recommended for checking the spread of bacterial leaf blight particularly in the kresek stage.

3. Before application of antibiotics for control of bacterial blight, identify the disease by observing the bacterial ooze.

4. Ediphenphos may be applied by high volume sprayers only. For control of sheath blight and sheath rot the following prophylactic measures may be adopted:
(a) Apply neem cake-coated urea as recommended under fertilizer application.
(b) Apply 50% more potash than normal recommended dosage in split application.
(c) Control weeds as suggested under weed control.

5. For control of sheath rot, spray the fungicides at the time of panicle emergence.

6. Application of carbofuran granules @ 1 kg ai/ha on the 25th day after planting is advised to control sheath blight and sheath rot and to keep down the population of rice nematode.

7. Spraying of any fungicide, preferably dithiocarbamate before the heading stage of the crop may be followed for the control of false smut and leaf scald diseases. Wherever control measures are adopted for sheath blight and sheath rot diseases, separate treatments are not needed for the control of leaf scald and false smut. Use 500 liters water for high volume spraying and 200 liters water for low volume spraying. It is advisable to use chemical on a rotational basis than using the same product continuously.

Citation:
Kerala Agricultural University. 2002. Package of Practices Recommendations: Crops. 12th Edition
(eds. A. I. Jose et al.). Kerala Agricultural University, Trichur. 278p.