How to control Armyworm/ Cutworm in Wheat

31/12/2019Posted on
    • The primary symptom is defoliation of the plant.
    • Larvae feed on the leaves, chewing from the edges to the midrib, or on the head of cereal plants.
    • Heavy infestations can be very destructive; larvae may climb the plant. Some species may be found feeding at the soil surface, others, underground feeding on roots, and then there are some who feed inside the stem.
    • The armyworm feeds during dawn and dusk period as it is actually shy of sunlight.


    Management –

    • Look for larvae and signs of damage beginning in early spring. Caterpillars will often be found feeding on the undersides of leaves and on fresh growth. Handpick the worms you discover and don’t be tempted to crush them between your thumbs. Instead, drop them in a bucket of soapy water. 
    • Use 4-5 bird perches to attract birds.
    • Spray Emamectin Benzoate 5% SG @ 100 Gm per acre.
    • Spray fipronil 5% SC @ 400 ml per acre.

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Management of Early Blight in Potato

31/12/2019Posted on

Management of early blight in Potato:-

  • Diseased plant parts should be destroyed properly, Avoid irrigation in cool cloudy weather and time irrigation to allow plants time to dry before nightfall.
  • Maintain good soil fertility and crop vigor, Harvest when skin is mature to avoid bruising and in turn infection of tubers.
  • Spray 2 gm Mancozeb 75 WP + 10 gm urea per litre of water at 15 days interval when symptoms start or Carbendazim 12%+ Mancozeb 63% WP @ 50 Gm/15 litre water or Copper oxychloride 50% WP@ 50 Gm/ 15 litre water.

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Management of Root Knot Nematodes in Tomato

28/12/2019Posted on

Root Knot Nematode in Tomato:-

Damage:-

  • The nematode attacks the roots and produces tiny galls.
  • The infested plants show symptoms of withering and wilting of leaves.
  • The block the movement of nutrients and water in the plant system and subjected to wilt and finally leads to death.
  • Growth of the plant is stunted fruiting capacity adversely affected.
  • Yellow of the foliage and wilting of the upper leaves occurs.

Control:-

  • Use resistant varieties.
  • Do use deep summer ploughing to control root-knot nematode.
  • Neem cake at the rate 80 Kg/Acre should be applied for effective control.
  • Carbofuran 3G at the rate 8 kg/acre should be applied as soil treatment.
  • Paecilomyces lilacinus-1% WP @ 10 g / kg seed for seed treatment, 50 gm / meter sq Nursery Treatment, 2.5 to 5 kg/ Hectare Soil application.

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Nature of damage and control of Whitefly

28/12/2019Posted on

Nature of damage and control of Whitefly:-

  • The whitefly is a sap-sucking insect that is often found in thick crowds on the undersides of leaves. When infested plants are disturbed, great clouds of the winged adults fly into the air.
  • Both nymphs and adults damage plants by sucking the juices from new growth causing stunted growth, leaf yellowing and reduced yields. Plants become weak and susceptible to disease.
  • Like aphids, whiteflies secrete honeydew, so leaves maybe sticky or covered with a black sooty mould.
  • They are also responsible for transmitting several plant viruses.
  • Host plants include more than 250 ornamental and vegetable plants. Citrus, squash, potato, cucumber, grape, tomato, Chilli and hibiscus are commonly infested.
  • Control Triazophos 40% EC @ 45 Ml/ 15 litre water or Difenthiuron 50% WP 10 Gm/ 15 litre water or Acetamiprid 20 SP @ 10 Gm/ 15 litre water
    are effective against whiteflies.

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Management of Leaf Roll Virus in Potato

27/12/2019Posted on
  • The new leaves are also greatly reduced in size and wrinkled, are yellow between the veins
  • The disease is managed by using virus-free seed potatoes.
  • Multiplying virus-free seed in aphid free areas.
  • The population of aphid vectors is controlled by the application of suitable contact/systemic insecticides.
  • For effictive control of aphid, Spray Acetamiprid 20% SP @ 10 Gm/ 15 Litre water or Imidacloprid 17.8% SL @ 10 Ml/15 Litre water.
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How to control early blight of potato

27/12/2019Posted on
  • Brown-black necrotic spot-angular, oval shape characterized by concentric rings on the upper leaf surface.
  • Carbendazim 12%+ Mancozeb 63%@ 300 gm/acre. 
  • Thiophanate methyl 70% Wp @ 250 gm/acre. 
  • Chlorothrlonil 75% WP @ 250 gm/acre. 
  • Kasugamycin 5% + Copper Oxychloride 46% WP@ 300 gm/acre. 
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Control of Eriophyid mite in Garlic and Onion

26/12/2019Posted on

Control of Eriophyid mite in Garlic and Onion:-

  • Both adults and immatures feed on the young leaves and between the layers in cloves of Garlic and Onion. Leaves do not open completely.
  • Whole plant shows stunting, twisting, curling, and yellow mottling. Mottling is seen mostly on the edges of the leaves.
  • Acaricides like Sulphur 80% WP@ 3 Gm per liter of water gives effective control of mites.
  • Twice spraying of Propargite 57% EC @ 400 ml/Acre in 7 days interval helps in controlling the pest in initial stage.

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Management of Leaf Roll Virus in Potato

26/12/2019Posted on

Management of Leaf Roll Virus in Potato:-

  • The disease is managed by using virus-free seed potatoes.
  • Multiplying virus-free seed in aphid free areas.
  • Population of aphid vectors is controlled by application of suitable contact/systemic insecticides.
  • For effictive control of aphid, Spray Acetamiprid 20% SP @ 10 Gm/ 15 Litre water or Imidacloprid 17.8% SL @ 10 Ml/15 Litre water.

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Management of Yellow Mosaic Disease in Okra/Bhindi

24/12/2019Posted on

Yellow Mosaic Disease in Okra/Bhindi:-

  • This is the most important and destructive viral disease in bhindi.
  • The disease infects at all the stages of crop growth and severely reduces growth and yield.
  • The disease is transmitted by whitefly.
  • The characteristic symptoms of the disease are a homogenous interwoven network of yellow veins enclosing islands of green tissues.
  • Initially, infected leaves exhibit only yellow coloured veins but in the later stages, the entire leaf turns completely yellow.
  • The fruits of the infected plants exhibit pale yellow colour, deformed, small and tough in texture.

Control-

  • Remove and destroy disease-affected leaves/plants from crop fields to avoid secondary spread.
  • Parbhani Kranti, Janardhan, Haritha, Arka Anamika and Arka Abhay can tolerate yellow vein mosaic.
  • Do not use high fertilizer during plant growth.
  • Do not roted okra with other hosts of virus.
  • If possible, choose early planting to the controlling of yellow mosaic virus disease.
  • Keep sanitation while using any tools that are using in crop.
  • Use 4-5 sticky trap/acre to the controlling of whitefly infestation.
  • Spray imidacloprid 17.8% SL 80 ml/acre for the controlling of whitefly.
  • Spray dimethoate 30% EC 250 ml/acre of water.

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Irrigation Management of Okra

24/12/2019Posted on

Irrigation Management of Okra:-

  • First irrigation should be given when first true leaf initiates in springs summer and when it expands in Kharif season.
  • Subsequent irrigations at 4-5 days Intervals are given to summer crop.
  • If temperature goes around 40 0C frequent light irrigation are recommended for proper fruiting.
  • The soil should be kept moist and flooding or wilting of plants should be avoided.
  • Moisture stress during flowering and fruit/seed setting causes around 70% crop losses.
  • The nutrient uptake from soil is also at peak during fruit set and development stage.
  • A water stress in the field during this period not only cause yield reductions but also affects the nutritional status of the fruits.

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