How to Control Cauliflower Diamondback moth

18/10/2019Posted on
  • For the prevention of diamondback moth, bold mustard should be sown in 2 lines after every 25 lines of cabbage/Cauliflower.
  • Spray the crop with Profenofos 50% EC 500 ml/acre or Profenofos 40% EC + cypermethrin 4% EC @ 400 ml/acre or
  • Spinosad 25% SC100 ml/acre or Indoxacarb @ 300 ml/acre or Emamectin Benzoate 5% SG @ 100 gm/acre Spray at fortnight intervals starting from 25 days after transplanting to control the pest.
  • For biological control Beauveria bassiana @ 1kg/acre.
  • Note: Mix the sticker with each spray.

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Control of Aphid in Bottle gourd

23/09/2019Posted on
  • The affected plants have to be uprooted and destroyed to prevent the spread of the disease.
  • For effective control of aphid fortnightly spray of acephate 75 % SP @ 300- 400 gm / acre or
  • Imidacloprid 17.8% SL @ 100 ml /acre or 
  • acetamiprid 20% SP @ 150-200 gm/ acre.

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Aphids Attack in Chilli Crop

31/08/2019Posted on

Aphids Attack in Chilli Crop:-

  • Nymphs and adults are both soft bodied pear shaped, blackish in colour.
  • Appear on the tender shoots, leaves and on the lower surface of the leaves.
  • Suck the sap and reduce the vigor of the plant.
  • Secrete sweet substances which attract ants and develop sooty mold.

Control:-Spray the crop with Following insecticides at 15-20 days interval till the end of aphid population checked.

  1. Profenofos 50% EC @ 50 ml/ Pump.
  2. Acetamiprid 20 SP @ 10 gm/Pump.
  3. Imidacloprid 17.8% SL @ 7 ml/pump.
  4. Fipronil 5% SC @ 40 ml/Pump.

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Management of Thrips in Cotton

28/08/2019Posted on

Management of Thrips in Cotton:-

Nature of Damage of Thrips:-

  • Nymphs and adults lacerate the tissue and suck the sap from the upper and lower surfaces of leaves.They inject saliva and suck the lysed contents of plant cells resulting in silvery or brown necrotic spots.
  • Seedlings infested with thrips grow slow and the leaves become wrinkled curl upwards and distorted with white shiny patches.
  • Rusty appearances in patches develop on under surface of leaves.
  • Higher infestation during vegetative crop growth results in late bud formation.
  • During the fruiting phase there is premature dropping of squares and the crop maturity is delayed combined with yield reduction.
  • The feeding by thrips on the developing bolls late in the season cause spots or wounds on the ripening of the ball or the quality of the seed.

Management:-

  • Seed treatment – Imidacloprid 60 FS @ 10 ml/kg or thiamethoxam 70 WS @ 5 g/kg seeds applied as seed treatment are efficient in suppressing the population of other sucking pest on cotton seedling.
  • Maintaining weed free conditions in cotton field from the spread of development of thrips.
  • Insecticidal options should be made when thrips infection results in high grade injury during clear sky period with no anticipated rains.
  • Spray of NSKE prepared on farm or crude neem oil spray @ 75 ml per pump suppress thrips population during pre squaring crop stage in both cases detergent / soap powder @ 1 gm / litre of spray fluid is to be added for getting uniform spray suspension.
  • Chemical Spray:- Spray any one Following insecticide.
  1. Profenofos 50% EC @ 50 ml/ Pump.
  2. Acetamiprid 20 SP @ 15 gm/Pump.
  3. Imidacloprid 17.8% SL @ 7 ml/pump.
  4. Thiamethoxam 25% WG @ 5 gm/pump.
  5. Fipronil 5% SC @ 40 ml/Pump.

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Control of White fly in Tomato

28/08/2019Posted on

Control of White fly in Tomato:-

  • Sucks the sap of plant.
  • Transmits curly diseases.
  • Affected leaves get shriveled and gradually curl up.

Control :-

  • Spray Dimethoate 30% EC @ 300 ml/acre in the early stage of crop.
  • Use 100 mesh nylon net to avoid entry of white fly into the nursery.

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Management of melon worm in watermelon

27/03/2019Posted on
  • Caterpillars feed on leaves and flowers.
  • Sometimes they bore into the developing fruit.
  • Before planting watermelon for effective control, cultivate deep in the field and destroy the cocoon of insect.
  • Determine the time of sowing, according to the number of this pest which is less heat during the summer season.
  • Properly manage the weeds.
  • Spray cypermethrin 10% EC @ 350-500 ml/acre.
  • Or spray Fipronil 5% SC @ 250-300 ml/acre

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Control of fruit fly in snake gourd

23/03/2019Posted on
  • The maggots burrow into the fruits and suck the sap.
  • Infested fruits decay and drop.
  • The fly mainly prefers tender fruits for egg laying.
  • Ovipositional punctures caused by adults also cause injury on fruits and fruit juices oozes out.
  • Collect and destroy infested fruits.
  • Cover developing fruits with paper or polythene cover immediately after anthesis pollination.
  • Maize plants grown in rows at a distance of 8-10 cm in snake gourd field is effective as flies rest on such tall plants.
  • Soil incorporation of carbaryl 10% dust can be made in fruit fly endemic areas.
  • Spraying of Dichlorovas @3 ml/lit of water at fortnightly intervals.
  • Deep ploughing to expose hibernating stages.

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Control of tobacco caterpillar in Tomato

22/03/2019Posted on
  • Deep summer ploughing.
  • Collect and destroy infested plant parts, egg masses and larva.
  • Install sex pheromone trap @ 5 traps/acre for early deduction of the pest.
  • Erection of bird perches @ 5 bird perches/ acre.
  • Apply Profenophos 50 % EC@ 400 ml/acre or quinalphos 25% EC @ 400 ml/acre
  • In case of severe infestation apply Emamectin Benzoate @ 80 Gm/acre

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Control of red pumpkin beetle in bottle gourd

14/03/2019Posted on
  • Avoid showing alternate host plants like cucumber, ridge gourd, sponge gourd, round gourd etc. near the bottle gourd field.
  • Destroy the remains of the old crop.
  • In the early stage of the crop, if the insect appears, hold it by hand and destroy it.
  • Spray the crop with Cypermethrin 25% EC 150 ml/acre +Dimethoat 30% EC 300 ml /acre or Carbaryl 50% WP 400 gm/acre at fortnight intervals starting from 25 days after sowing to control the pest.
  • Spraying with Dichlorvos (DDVP) 76% EC @ 250-350 ml/acre gives satisfactory control of the pest.

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Control of leaf miner in cowpea

13/03/2019Posted on
  • Maggots are feeding the leaves in a zigzag shape.
  • The infestation of this fly can easily be recognized by the presence of shiny whitish streaks on the leaves against the green background.
  • The flowering and fruiting capacity of in infested plants is adversely affected.
  • Spraying of systemic insecticide like Deltamethrin 2.8% EC @ 200 ml/acre or Triazophos 40% EC @ 350-500 ml/acre.

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