1. Pesticide use in Potato
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2. Potato tuber moth
Spray quinalphos 2 ml/litre to manage foliar damage caused by the larvae of the pest.
Walls of godown should be sprayed with 0.1% malathion 50 EC (2ml/litre in 500 litre of water) at an interval of three months.
Treat potato tubers kept for seed purpose with malathion 5% g/kg to prevent tuber moth incidence during storage. Treated potatoes should not be used for consumption.
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3. Cut worm
Spraying of potato foliage, ridges and collar region during evening hours with chlorpyriphos 20 EC 2 ml/litre.
Spray chlorpyriphos20 EC @ 1ml/litre on 4th day after transplanting of potato seedlings raised from TPS (True Potato Seeds) to protect the seedlings from cut worms.
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4. Aphid
Apply carbofuran 25-30kg/ha or phorate kg/ ha nearer to the base of the seedlings when soil is moist.
Spray imidacloprid 0.5 ml/litre or thiamethoxam g/litre of water.
Spraying should be given only when cupping and curling of the leaves on the top 1/3rd portion of the plant and aphids all over the plant are seen.
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5. Whitefly
Spray methyl demeton 1ml/litre in in 500 litre of water/ha in the early stage.
Spray quinalphos 25 3ml/litre in 600 litre of water, phosalone 35 3ml/litre in 800 litre of water in the early and mid stages of the crop.
The use of synthetic pyrethroids to control whitefly should be discouraged.
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6. Leaf Hopper
Spray oxydemeton methyl 25EC (750ml) or dimethoate 30EC (625ml) or acetamiprid 20SP (50 g) in 250 litre of water.
Incorporate carbofuran 30-35kg/ha or phorate kg/ha nearer to the base of the seedlings when soil is moist.
Spray imidacloprid 200SL (0.5 ml/litre) or thiomethoxam 25WG ( g/litre) in case of severe infestation.
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7. Wireworms Mite Epilachna beetle:
Spray dicofol ml/ litre or phosalone 35 EC 2 ml / litre or wettable sulphur 50 6 gm / lit of water.
Epilachna beetle:
Apply malathion ml/ litre or 0.5ml/ litre of water.
Wireworms
Apply soil insecticides like mocap kg/ha or nemathroin 10G @ 30 kg/ha against wireworms
Treatment of seed tubers with imidacloprid 200 3ml/kg of seed can also reduce wire worm infestation.
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8. White grub ADULT MANAGEMENT GRUB MANAGEMENT
Two Strategies
ADULT MANAGEMENT
GRUB MANAGEMENT
Source: AINP on White grubs, Department of Entomology, Assam Agricultural University, Jorhat-13
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9. Spraying of host trees to kill adult scarab beetle
Fig. Spraying of host trees to kill scarab beetles
Source: AINP on White grubs, Department of Entomology,
Assam Agricultural University, Jorhat-13
Spraying of host trees by using monocrotophos ml/litre of water or quinalphos 25 2 ml/litre of water within 3 days of first pre-monsoon rain with the object to kill the beetles before they lay eggs in the soil
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10. Fig. Seed treatment of potato
White grub
Fig. Seed treatment of potato
Source: AINP on White grubs, Department of Entomology,
Assam Agricultural University, Jorhat-13
Seed tuber treatment with chlorpyriphos 20EC or quinalphos ml/kg of seed or imidacloprid 200 3ml/kg of seed to control the grubs
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11. Fig. Furrow application of insecticides against white grubs
Furrow application of chlorpyriphos 20EC or quinalphos litre/ha or imidacloprid ml/ha to control the grubs
Fig. Furrow application of insecticides against white grubs
Source: AINP on White grubs, Department of Entomology, Assam Agricultural University, Jorhat-13
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12. Mole Cricket
Soil application of phorate kg/ha at the time of planting
Chlorpyriphos 2.5 litre/ha in 800 litres of water (3ml/litre) or imidacloprid 224 ml/ha in 400 litre of water (0.5ml/litre) as post sown soil application
Red ant
Spraying of infested potato fields with chlorpyriphos ml/litre of water to perfectly wet the soil
First spraying should be given soon after noticing the pest incidence and the 2nd spraying should be given after days, if the pest persists.
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13. List of banned pesticides in India
Double click on the video to visualize
Video : Courtesy; Ms. Deepa Bhattacharyya, Director, Documentary on Organic Farming ,
RKD Film Production, Guwahati, Assam
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14. Tips for Safe Handling of Pesticides
Minimize use of pesticides
Understand the dangers of
pesticides
Avoid direct contact with pesticides
Spray crop with full protection
Store pesticides in lock and key condition
Source:
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