Disease Free Nursery Raising For Marigold

03/05/2018Posted on

Disease Free Nursery Raising For Marigold:-

  • Healthy seed should be selected for sowing.
  • The seed should be treated with recommended fungicide before sowing.
  • Continuous raising of nursery in the same plot should be avoided.
  • The top soil of nursery should be treated with carbendazim @ 5 gm/square m. are of the soil  and nursery should be drenched with carbendazim @ 2gm/litre of water at fortnightly interval.
  • Application of bio-control agent trichoderma viride in soil @ 1.2 kg/ha is also found effective to control damping-off to considerable extent.

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Powdery Mildew of Bottle Gourd

28/02/2018Posted on

Powdery Mildew of Bottle Gourd

  • White to dirty gray spots or patches appers on leaves which be come white powery as they enlarge.
  • Fortnightly spray hexaconazole 5% SC 300 ml per acre or thiophanate methyl 70% WP 400 gm per acre.

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Disease Free Nursery Raising For Vegetables

08/02/2018Posted on

Disease Free Nursery Raising For Vegetables:-

  • Healthy seed should be selected for sowing.
  • The seed should be treated with recommended fungicide before sowing.
  • Continuous raising of nursery in the same plot should be avoided.
  • The top soil of nursery should be treated with Carbendazim @ 5 gm/square m. are of the soil and nursery should be drenched with Carbendazim @ 2gm/litre of water at fortnightly interval.
  • Soil solarization by spreading 250 gauge polythene sheet over the bed for 30 days before sowing in summer season should be done.
  • Application of bio-control agent tricoderma viride in soil @ 1.2 kg/ha is also found effective to control damping-off to considerable extent.

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Management of Mosaic Virus in chilli

31/01/2018Posted on

Symptoms:-

  • The important symptoms of the disease are Vein clearing. Yellowing and malformation of younger leaves, followed by conspicuous mosaic.
  • Severe mottling with light and dark green patches. Scattered all over the leaf surface.
  • Slight curling, marginal rolling and shortening of leaves takes place.

CONTROL

  • Uprooting the infected plants.
  • Cultivate of resistant/tolerant varieties like Pusa Jwala, Pant C-1, Pusa- Sadabahar, Panjab lal etc.
  • Spray Dimethoat @ 2ml/litre of water at regular intervals to reduce the vectors.

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Powdery mildew in Okra

31/01/2018Posted on

Symptoms-

  • The disease is found mainly on the older leaves and stems of plants.
  • Increased humidity favours the disease and infection is enhanced during periods of heavy dew.
  • The disease symptoms appear as small, round, whitish spots on leaves and sometimes on stems.
  • The spots enlarge and coalesce rapidly and a white mass resembling talcum powder becomes evident on the upper surface of the older leaves or other plant parts.
  • Young leaves are almost immune.
  • Heavily infected leaves become yellow then become dry and brown.
  • Extensive premature defoliation of the older leaves takes place.

Control-

Spray wettable sulphur 80% WP 50gm/15lit of water at fortnight interval.

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Management of Anthracnose in Frenchbean

27/01/2018Posted on

Symptoms:-

  • Leaves, stem, and pods of French bean are susceptible to infection.
  • Small reddish-brown, slightly sunken spot form on the pods and rapidly develop into large, dark-suken lesion.
  • In moist weather, masses of pink spores develop on these lesions.
  • Black sunken spots, similar to those on the pods are produced on the stem and left stalks.
  • Infection of the leaves causes blacking along the veins particularly on the under surface.

Control:-

  • Use disease free certified seed.
  • Do not grow French bean for at least two years in the same land that has carried on infected crop.
  • Remove and destroy the disease infected French bean plants to check the spread of disease.
  • Seed treatment with carbendazim 3gm/kg seed.
  • Weekly spray with Mancozeb 3 gm/litre or chlorothalonil 2 gm/litre of water from first leaf stage till the pods mature.

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Control of Early Blight of Tomato

25/01/2018Posted on
  • The fungus attacks the foliage causing characteristics leaf spots and blight.
  • Small, isolated, scattered pore brown spot appear on the leaf.
  • Fully developed spots are irregular, brown, to dark brown in colour and with concentric ring (2-5mm ) inside the spot.
  • Symptoms start from the lowest leaves and progress upward.

Control:-

  • Spray 2 g Mancozeb 75 WP + 10 g 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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Prevention of Collar rot in chilli

22/01/2018Posted on

Symptoms:-

  • The lower portion of the stem is affected from the soil borne inoculums.
  • Decortication is the main symptom.
  • Exposure and necrosis of underlying tissues may lead to collapse of the plant.
  • Near the ground surface on the stem may be seen the mycelia.
  • Lack of plant vigour accumulation of water around the stem and mechanical injuries help in development of this disease.

Control:-

  • Destroy of debris of diseased plants.
  • Crop rotation and ensure good drainage.
  • Sowing of seeds on raised nursery beds.
  • Treating seeds with Carbendazim @ 2 gm/ kg seeds before sowing.
  • Soil drenching with Carbendazim 3 gm or Metalaxyl  + Mancozeb 3 Gm per litre of water.

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Control of Fusarium Wilt in Bottle Gourd

20/01/2018Posted on

Symptoms:-

  • In young seedling, cotyledons drop and wither.
  • Older plants wilt suddenly and vascular bundles at the collar regions show brown discoloration.

Control:-

  • Use resistant cultivars.
  • Give hot water treatment to seed at 55OC for 30 Minutes.
  • Drenching of carbendazim 3 Gm/litre.
  • Crop rotation reduces the severity of the disease.

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Alternaria Leaf Spot in Cauliflower and Cabbage

15/01/2018Posted on

Alternaria Leaf spot in Cauliflower and Cabbage:-

Symptoms:-

  • Small dark yellow spot appear on the leaf surface.
  • Later on the spots enlarge to circulars areas with bluish concentric rings.
  • In severe cases, the entire plant defoliates.
  • Violet to dark blackish-brown spots develop on infected curd, stem and pods.

Control:-

  • Use certified seeds.
  • Give hot water treatment to seed at 50OC for 30 Minutes.
  • Spray the crop with Mancozeb 3 gm per litre of water or Copper oxychloride 3 gm per litre of water at 10-15 days intervals, first spray be given on the appearance of symptoms.

 

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