Control of Aphids in Cabbage

Control of Aphids in Cabbage:-

  • Nymphs and adults are both soft bodied pear shaped, blackish in colour.
  • Colonies of these insects are found on tender shoots and sacks vital sap from the tissues.
  • Affected plants remain stunted in growth and curd formation is poor.
  • In case of severe infestation plants may completely dry up and die away.
  • The aphid produce honey dew which makes the plants sticky and favours the growth of shooty mold.
  • As a result of shooty mold a black coating is formed on affected plant parts hindering the photosynthesis and adversely affect the plants growth.
  • Slight humidity favours rapid multiplication of  this pest.
  • Grooming stages of aphids are mostly observed on the lower surface of the leaves.

Control:-

  • Spraying of the crop with one of the following insecticide
  1. Dimethoate 30 EC @ 300 Ml/ Acre
  2. Quinalphos 25 EC @ 300-400 Ml/Acre
  3. Profenophas 50% EC @ 400 Ml/Acre
  • Destroy  plant debris or remove banded grasses/weeds.
  • To prevent recurrence of the aphid population granular insecticides. like Phorate 10 G @ 4 kg/ Acre should be applied in the soil.

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Season of Planting of Cabbage

Season of Planting of Cabbage:-

  • Sowing time depends upon the variety and the agro-climatic  conditions prevailing in a particular region.
  • Early season varieties seeds are sown during may  to June.
  • Mid season varieties seeds are sown during last  week of June to July.
  • Mid late season variety seeds are sown during  August .
  • Late  season variety seeds are sown during September to October.

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Contro of Diamondback Moth (DBM) in Cabbage

Contro of Diamondback Moth (DBM) in Cabbage:-

Identification

  • Eggs are yellowish-white with greenish tings.
  • The caterpillars are 7-12 mm in length, pale yellowish green in colour with fine erect back hair scattered all over the body.
  • Adults are 8-10mm long greyish-brown in colour having pale whitish narrow wing inner yellow margins.
  • The adult female lays eggs on the leaves either singly or in groups.
  • White markings along the back of the fore wings which when folded from a diamond shaped pattern in adult diamond back moth.

Damage

  • Small slender green caterpillars on emergence feed on the leafs epidemics and later make holes in the leaves.
  • Severely affected leaves are completely skletonised.

Control

  • For the prevention of diamond back moth, bold mustard should be sown in 2 lines after every 25 lines of cabbage/Cauliflower.
  • Spray the crop with Profenofos 50% EC (3 ml/lit) or Spinosad 25% SC (0.5 Ml/litre ) or Indoxacarb (1.5 Ml/Litre) of water at fortnight intervals starting from 25 days after transplanting to control the pest.

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Today’s Farmer

Name:- Sachin Thakur

Village:- Dilawara

Distric:- Dhar

State:- Madhya Pradesh

Problem:- Caterpiller in Cabbage.

Solution:- Spray Emamectin Benzoate @ 15 Gm + Profenofas @ 30 Ml per pump.

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Nursery Bed Preparation of Cabbage

Nursery Bed Preparation of Cabbage:-

  • The cabbage seeds are sown in a seed bed and 4-6 week old seedlings are transplanting to the field.
  • Raised beds of size 3*0.6 m and 10-15 cm in height are prepared.
  • About 70 cm distances is kept between two beds to carry out intercultural operations such as watering, weeding, etc.
  • The surface of beds should be smooth and well leveled.
  • Well-decomposed FYM @2-3 kg/m is added at the time of bed preparation.
  • Raised beds are necessary to avoid problem of water logging in heavy soils.
  • To avoid mortality of seedlings due to damping off, drenching of the beds with Carbendazim 50% WP (15-20g/10 liters of water ) is effective.

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Field preparation of Cabbage:-

Field preparation of Cabbage:-

  • The field is ploughed to fine tilth by giving 3-4 ploughing with a sufficient interval between two ploughing.
  • Well decomposed FYM (15-20 tonnes/ha.) is thoroughly incorporated at the time of land preparation.

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Nutrient management of Cabbage

Nutrient management of Cabbage:-

  • Cabbage is a heavy feeder crop.
  • Fertilizer dose depends upon the soil and amount of organic manure applied to the crop.
  • For a good yield, 15-20 tones of well decomposed FYM is incorporated in the soil about 4 weeks before transplanting.
  • Recommeded doses of fertilizer for normal varieties 100 Kg: 60 Kg P and 100 Kg K/ ha hybrids -120-180 kg N 100 Kg P and 100 Kg K /ha.
  • Half the dose of nitrogen and full dose of P and K should be applied at the time of final preparation of field.
  • Remaining half dose of nitrogen should be applied as top dressing in spilt doses followed by earthing up.

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Alternaria Leaf Spot in Cauliflower and Cabbage

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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Cauliflower Diamondback Moth (DBM)

Identification

  • Eggs are yellowish-white with greenish tings.
  • The caterpillars are 7-12 mm in length, pale yellowish green in colour with fine erect back hair scattered all over the body.
  • Adults are 8-10mm long greyish-brown in colour having pale whitish narrow wing inner yellow margins.
  • The adult female lays eggs on the leaves either singly or in groups.
  • White markings along the back of the fore wings which when folded from a diamond shaped pattern in adult diamond back moth.

Damage

  • Small slender green caterpillars on emergence feed on the leafs epidemics and later make holes in the leaves.
  • Severely affected leaves are completely skletonised.

Control

  •  For the prevention of diamond back moth, bold mustard should be sown in 2 lines after every 25 lines of cabbage/Cauliflower.
  • Spray the crop with Profenofos 50% EC (3 ml/lit) or Spinosad 25% SC (0.5 Ml/litre ) or Indoxacarb (1.5 Ml/Litre) of water at fortnight intervals starting from 25 days after transplanting to control the pest.

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