Information on state recommendations:
Disease management –
Turcicum Leaf Blight (TLB): Exserohilum turcicum
i. Spray Mancozeb or Zineb @ 2-4 g/litre at 10 days interval after first appearance of the disease.
ii. Cultivation of Resistant varieties
Maydis leaf blight (MLB) or Southern corn leaf blight (SCLB): Bipolaris maydis (also known as Cochliobolus heterostrophus in its teleomorph state)
i. Spray with Mancozeb @ 2 g/ lit of water.
ii. Resistant varieties – Deccan, VL 42, Prabhat, KH-5901, PRO-324, PRO-339, ICI-701, Deccan 109 etc.
Fusarium stalk rot: Fusarium moniliforme
i. Application of potassic fertilizers reduces infection.
ii. Seed from infected areas should not be planted.
iii. Rotation with other crops.
iv. Resistant varieties – Ranjit and Ganga 5
Bacterial stalk rot: Erwinia chrysanthemi pv zeae
i. Bleaching powder containing 33% chlorine @ 10 kg/ha as
ii. soil drench at pre-flowering stage
iii. Planting crop on ridges.
iv. Avoid water logging and proper drainage
Pest management –
Fall Army worm (FAW): Spodoptera frugiperda
- On a small scale infestation hand-pick the egg mass and larvae to destroy the pest or apply the handful of sand or soil mixed with lime (9 soil: 1 lime in the pest attacked leaves whorl to kill the larvae.
- Alternatively, destruction of egg mass and larvae is done by crushing or immersing it in kerosene oil after hand picking.
- Pheromonal control traps can be used (5 traps/acre) for mass trapping and destruction of male moth.
- using some bio-formulation such as 5% Neem Seed Kernel Emulsion or Azadirachtin 1500ppm @ 5ml/l water, Bacillus thuringiensis var. kurstaki formulations (Dipel 8L @ 2ml/l water or Delfin 5WG @ 2g/l water), Entomopathogenic fungi Metarhizium anisopliae (1 X 108 cfu/g) @ 5g/l and/or Nomuraea rileyi rice grain formulation (1 X 108 cfu/g) @ 3 g/l water.
- Seed treatment: Chlorantraniliprole 19.8% + Thiamethoxam 19.8% FS @ 6 ml/kg of seed (protects seedlings for initial 2 weeks).
- Spray (whorl application; if more than 10% plants have infestation) any of the following pesticides may be used. If more than one spray is required, pesticides can be alternated for better control.
- Chlorantraniliprole 18.5 SC (80 ml/acre) @ 0.4ml/L
- Thiamethoxam12.6% + Lambdacyhalothrin 9.5% ZC (50 ml/acre) @ 0.25 ml/L
- Spinetoram 11.7% SC (100 ml/acre) @ 0.5 ml/L
- Emamectin benzoate 5% SG (80 g/acre) @ 0.4 g/L
Stem borer: Chilo partellus
- Mix any of the following granular insecticides with sand to make up a total quantity of 50 kg and apply in the leaf whorls on the 20th DAS Phorate 10% CG10 kg/ha Carbaryl 4% G 20 kg/ha.
- Carbaryl 50 WP 1 kg/ha on the 20th day of sowing (500 l of spray fluid/ha)
- Dimethoate 30% EC 660 ml/ha
Pink stem borer: Sesamia inferens
Spray phosalone 35% EC at every 20 days interval
Corn worm/Earworm: Helicoverpa armigera
i. Set up sex pheromone traps at 12/ha
ii. Two applications of NPV at 10 days interval at 1.5 X1012 POB along with crude sugar 2.5 kg + cotton seed kernel powder 250 g on the ear heads
iii. Apply any one of the following on 18th day after panicle emergence
Carbaryl 10 D 25 kg/ha
Malathion 5 D 25 kg/ha
Phosalone 4 D 25 kg/ha
Agronomic recommendations: Not available