Irrigation Schedule in Maize

03/01/2020Posted on
  • Maize cultivated during the monsoon, winter and spring season.
  • Spring and winter season is almost fully irrigated.
  • For winter and spring maize first irritation should be applied at 3-4 weeks after germination.
  • Subsequent irrigation at 4-5 week interval up to mid-March.
  • Therefore at 1-2 weeks interval depending on rainfall and temperature.
  • For different water availability scenario, the irrigation scheduling can be as follow-
  • If five irrigations available apply at 1.) Six leaf stage, 2.) Late knee-high stage, 3.) Tasseling stage, 4.) 50% silking stage and 6.) Dough stage.
  • If three irrigations available apply at 1.) Early knee-high stage, 2.) Tessling stage and 3.) 50% silking stage.

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Control of Root Aphid in Wheat

03/01/2020Posted on
  • This insect is active from November to February.
  • Damage is more in rainfed and late sown crop.
  • Yellowing of young plants is observed due to root aphids. In this case minute yellowish brown aphids may be present near the base or on the roots of the plant.
  • Aphids also vector a viral disease named barley yellow dwarf virus (BYD). Yield of infected wheat plants can be reduced by 50%.

Control-

  • Avoid late sowing.
  • Avoid use excess nitrogen fertilizers.
  • If the infestation in standing crop, Spray imidacloprid 17.8% SL @ 60-70 ml/acre.
  • Or apply thiamethoxam 25% WG @ 100 gm/acre in soil with fertilizer/Sand/soil before irrigation.

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Picking process in Okra

02/01/2020Posted on
  • Harvesting the fruits when they attained maximum size but still tender.
  • Fruits of 6-8 cm long are preferred for export purpose.
  • Harvesting is done in alternate days with a knife or by bending pedicel with a jerk.
  • For harvesting, cotton cloth hand gloves should be used to protect fingers from stinging effect.
  • It is Advisable to harvest in morning hours since fruit hairs are soft.
  • Sprinkling water on pods during night will keep them cool and fresh for market.

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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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