Insects and Disease attacks are not acute in Soybean Crops in Kharif season. Some of the prevalent are:
1. Hairy Caterpillar:
- The attack of Hairy Caterpillar is visible occasionally in Soybean during Kharif season.
- The insects voraciously feed on the green leaves and shoots of the plants.
- This insect may be controlled by apply Diazinon 60 EC or malathion @ 1.1 liter in 550 liters of water per hectare on the affected plant twice a week
2. Aphid:
- Mustard Aphids may suck the sap from the tender leaves and branches of Soybean and thus weaken the plants.
- In addition, aphids spread virus diseases.
- The Insecticide noted above (Malathion and Diazinon) should be applied according to the above prescription to control the insects.
3. Yellow Mosaic:
- Amongst diseases, Yellow Mosaic is often visible in Soybean.
- Sometimes the Crop is also affected by stem-rot.
- On the attack of yellow mosaic, the leaves turn yellow in patches. Gradually the growth of the plant is checked, the number of flowers and pods are reduced.
- Aphid is the main carrier of this disease and therefore, aphid must be controlled first to check the disease.
- At the initial stage of attack the affected plants should be uprooted and burnt away from the Soybean crop field.
- Dithane M-45 or Coper Oxy-chloride has to be applied @ 0.82 - 1.23 oz in 12.5 mds. of water per acre (72 gm Copper Oxy-chloride in 1100 liters of water per hectare) for better control of the mosaic.
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