Late blight of tomato

14/09/2019Posted on
  • first appears of  Late blight on the lower, older leaves as water-soaked, grey-green spots. 
  • As the disease matures, these spots darken and a white fungal growth forms on the undersides. Eventually, the entire plant will become infected. 
  • Crops can be severely damaged.
  • The disease spreads quickly in fields and can result in total crop failure if untreated

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Weed Control in Tomato Crop

13/09/2019Posted on

Weed Control in Tomato Crop:-

  • About 2-3 hoeing up are essential at the initial stage of plant growth.
  • Application of pre-emergence weedicide of Pendimethalin 30% SC @ 700 ml/Acre with one hand weeding 45 days after transplanting is more effective for weed control.
  • Application of post-emergence weedicide of Metribuzin 70% WP @ 300 Gm/Acre 15 days after transplanting.
  • Application of mulches like straw, saw dust and black polythene are used in controlling weeds, moisture conservation for better quality of yield.

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Seed treatment of Potato

13/09/2019Posted on

Seed treatment of Potato:- Potato a tuberous crop that infects various fungal disease which spread through seed and soil, therefore seed treatment is very important in potato. Potato seed treatment should be done by Carboxin 37. 5% + Thiram 37. 5% @ 200 gm/ 6 litre water for 1 acre seed or Thiophanate Methyl 45% + Pyraclostrobin 5% FS @ 800 ml /16 litre water for 40 quintal seed

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Control of Verticillium wilt in cotton

13/09/2019Posted on
  • Level up after deep plowing (6-7 inches).
  • Use disease-free seed.
  • Follow 6-year crop rotations.
  • Grow resistant varieties.
  • Trichoderma viride @ 2 kg/acre mix it with 40-50 kg of FYM and apply at the time of sowing  
  • Seed treatment with Carboxin 37.%+ Thiram 37.5% @ 2 gm /kg or Trichoderma viride @ 5 gm/kg.
  • Trichoderma viride @ 1 kg + Pseudomonas fluorescens @ 1 kg make the solution in 200 liters of water and apply as root drenching.
  • Apply Mycorrhiza @ 4 kg/acre at 15 days after sowing.
  • Spraying Thiaphanate methyl 75% WP @ 300 gm/acre at before flowering.
  • Spraying Propiconazole 25% EC @ 125 ml/acre at pod formation stage.

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Verticillium wilt of cotton

12/09/2019Posted on

 

  • Plants infected at early stages are severely stunted.
  • The first symptoms can be seen as bronzing of veins.
  • It is followed by interveinal chlorosis and yellowing of leaves.
  • Finally, the leaves begin to dry, giving a scorched appearance.
  • At this stage, the characteristic diagnostic feature is the drying of the leaf margins and areas between veins, which gives a “Tigerstripe” or “Tiger claw” appearance.

 

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Control of Fusarium wilt in cotton crop

11/09/2019Posted on
  • Level up after deep plowing (6-7 inches).
  • Use disease-free seed.
  • Follow 6-year crop rotations.
  • Grow resistant varieties.
  • Seed treatment with Carboxin 37.%+ Thiram 37.5% @ 2 gm /kg or Trichoderma viride @ 5 gm/kg.
  • Apply Mycorrhiza @ 4 kg/acre at 15 days after sowing.
  • Spraying Thiaphanate methyl 75% WP @ 300 gm/acre at before flowering.
  • Spraying Propiconazole 25% EC @ 125 ml/acre at pod formation stage.

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Symptoms of Fusarium wilt in cotton

11/09/2019Posted on
  • Causal organism: Fusarium oxysporum f.sp. Vasinfevtum
  • Wilt is one of major diseases of cotton. 
  • Discolorations of leaves start from the margins and spread towards midribs.
  • The veins become darker, narrower and spots.
  • Browning and blackening of vascular tissues.

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How to control early blight of potato

10/09/2019Posted on

Spray any one fungicide for control of this disease 

  • 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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Early blight of potato

10/09/2019Posted on
  • The fungus attacks the foliage causing characteristics leaf spots and blight.
  • Small, isolated, scattered pore brown spots appear on the leaf.
  • Fully developed spots are irregular, brown, to dark brown in color and with concentric ring (2-5mm ) inside the spot.
  • Symptoms start from the lowest leaves and progress upward.

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Control of brown plant hopper in paddy crop

09/09/2019Posted on
  • Acephate 75% SP @ 300 gm/acre (or) 
  • Chlorpyriphos 20% EC @ 500 -1000 ml/acre (or)
  • Carbofuran 3 G @ 7.5 kg/acre.

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