Fall army worm :- Nature of Damage and Control measures

12/07/2019Posted on

Damage:-

The first time the outbreak of this pest in India was seen in the state of Karnataka in July 2018 After this, it has also spread in other states. This pest which is damaging the maize crop remains alive for more time than other insects. The moths of this insect can fly up to 100 km in the same night with the blow of air, a female gives its eggs in the life of 1 to 2 thousand. The reason for the loss is not only their population but also by their feeding habits. These insects attack the crops in the cluster. Because of this, they destroy the entire crop in a short time. This Polyphagous insect damage about 80 types of crops but it’s preferred host in maize.

  • Fall armyworm generally feeds on foliage, but during heavy infestations, larvae will also feed on corn ears. 
  • Foliar damage to corn is usually characterized by ragged feeding and moist sawdust-like frass near the whorl and upper leaves of the plant.
  • They will frequently be near the tip but may feed down the ear creating a track of damaged kernels.

Control:-

  • Set up of light traps.
  • Set up pheromone traps at 5 per acre.
  • Biveria Bissiana @ 1kg/acre.
  • Apply any one of the following on presence of pest.
    • Thiodicarb 75% WP @ 400g/acre.
    • Flubendiamide 480 SC @ 60ml/acre.
    • Chlorantraniliprole 18.5% SC @ 60 ml/acre.
    • Spinosad 45% SC @ 80 ml/acre.

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How much and when apply fertilizer in corn:

10/07/2019Posted on
  • Add well-composted FYM @ 10 tons/acre at the last ploughing.
  • If soil test recommendations are not available, Apply UREA 20 kg, DAP 70 kg and MOP 35 kg per acre at sowing.
  • Basal application in the crop can vary on soil, variety and other factors.
  • In maize crop, total urea is required 75-90 kg/acre. This urea quantity should be distributed as following timing.
Sr. No.        Crop stage        Nitrogen rate (%)
1 Basal (at sowing)         20
2 V4 (four-leaf stage) 25
3 V8 (eight-leaf stage) 30
4 VT (tasseling stage) 20
5 GF (grain filling stage) 5

 

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Fall army worm :- Nature of Damage and Control measures

09/07/2019Posted on

Damage:-

  • Fall armyworm generally feeds on foliage, but during heavy infestations, larvae will also feed on corn ears. 
  • Foliar damage to corn is usually characterized by ragged feeding and moist sawdust-like frass near the whorl and upper leaves of the plant.
  • They will frequently be near the tip but may feed down the ear creating a track of damaged kernels.

Control:-

  • Set up of light traps.
  • Set up sex pheromone traps at 5 /acre.
  • Apply any one of the following on presence of the pest.
    • Flubendiamide 480 SC @ 60ml/acre
    • Spinosad 45% SC @ 80 ml/acre.
    • Thiodicarb 75% WP @ 400g/acre.
    • Chlorantraniliprole 18.5% SC @ 60 ml/acre.

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Maize:- Basis for Selection of Variety

06/06/2019Posted on

 

6240 pluse sygenta 5 Kg/acre 60 x 30-45 cm (Row x Plant) 4-5 cm. Kharif & Jayad Orange-yellow Semi dent with bold kernels with excellent tip, Very uniform and appealing plant type.Widely Adapted Hybrid, good responsive to high input management. high yield than 6240 because treated seed
Syngenta S 6668 5 Kg/Acre 60 x 30-45 cm (Row x Plant) 4-5 cm. Kharif & Jayad Orange Suited for irrigated conditions with high management, Large cobs with attractive orange kernels and excellent tip filling, High Yield
Pioneer 3401 5 Kg/Acre 60 x 30-45 cm (Row x Plant) 4-5 cm. Kharif & Jayad Orange-yellow shelling % above 80-85 % row per cob 16-20, orange flint, tip filling good, long duration 110 days, high management than good yield,30-35 qtl,

 

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Weed Management in Corn

04/06/2019Posted on
  • Apply Atrazine @ 500 g/acre as pre-emergence on 2-4 DAS using Backpack/ Knapsack/ Rocker sprayer fitted with a flat fan nozzle using 200 liters of water/acre followed by one hand weeding on 30-35 DAS. (or)
  • Apply 2,4 D, Dimethyl-Amine Salt 58% SL @ 600ml/acre at 4-6 leaf stage of weed.
  • Apply Tembotrione 42% SC @ 115 ml/acre at 4-6 leaf stage.
  • Apply herbicide when there is sufficient moisture in the soil.
  • Do not disturb the soil after herbicide application.
  • If pulse crop is to be raised as intercrop, do not use Atrazine. Spray Pendimethalin @ 300g/acre as pre-emergence on 3-5 DAS.

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Qualities of selected Maize Variety

03/06/2019Posted on

 

S. No. Variety Name Seed rate Plant spacing Sowing Depth Sowing Season Grain color Extra description
1 ADV 759 8 kg/acre 60 cm x 22.5 cm (Row X Plant ) 4-5 cm. kharif-115-120 day,Rabi-125-135 day High yield, Uniform long cobs, Bold kernels with excellent tip filling, No. of rows 14, Suitable for rainfed area
2 PAC 751 Aleet 60 x 30-45 cm (Row x Plant) 4-5 cm. kharif-115-120 day,Rabi-125-135 day Orange Yellow Suitable for the rainfed area, Orange yellow flint grain, High shelling % (85 %) with uniform small grain. No.of rows 18-20, Plant height 5.5-6.5 feet ( Medium ), Yield – 30 qtl/acre, Leaves broad, Stay green plants after maturity so it is suitable for fodder.
3 6240 sygenta 5 kg/acre 60 x 30-45 cm (Row x Plant) 4-5 cm. Kharif & Jayad (80-85 days) Orange Yellow Well suited for fodder, High yielding, Semi-dent kernels with excellent tip filling, Stay green plants.Wide adaptability.A good yield is responsive to high input management, Stalk, and root rot, rust resistance.

 

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Fertilizer Management in Maize leads to more yield

10/05/2019Posted on
  • To take more yield, the quantity of balanced fertilizers should be used.
  • Apply well rotten FYM @ 8-10 tonnes/acre in the field.
  • At the time of sowing, Apply (urea @ 65 kg/acre + DAP @ 35 kg/acre + MOP @ 35 kg/acre + carbofuran @ 5 kg/acre from the basal dose.
  • After 15-20 DAS, Apply Magnesium Sulphate @ 10 kg/acre + @ Zinc Sulphate + Giorhyizza @ 8 kg@ 10 kg/acre.

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Control of fall armyworm in Maize

07/01/2019Posted on

Damage:-

  • Fall armyworm generally feeds on foliage, but during heavy infestations, larvae will also feed on corn ears. 
  • Foliar damage to corn is usually characterized by ragged feeding and moist sawdust-like frass near the whorl and upper leaves of the plant.
  • They will frequently be near the tip but may feed down the ear creating a track of damaged kernels.

Control:-

  • Set up of light traps.
  • Set up sex pheromone traps at 5 /Acre.
  • Apply any one of the following on presence of pest.
  • Emamectin benzoate 5% SG @ 100 Gm per acre.
  • Fipronil 5% SC @ 400 ml per acre.
  • Cloropyriphas 50% EC @ 400 ml per acre.

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