Insect – Page 3 – Gramophone

Control of aphid in muskmelon

The affected plants have to be uprooted and destroyed to prevent the spread of the disease.
For effective control of aphid fortnightly spray of acephate 75% SP @ 300-400 gm/acre or Imidacloprid 17.8% SL @ 100 ml/acre or acetamiprid 20% SP @ 150-200 gm/ acre.

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Then caterpillars bore into the pods and feed on the seeds.
If flowers and pods are not available, larva feeds on foliage.
Application of deep plowing and clean cultivation to expose the resting pupae and crop rotation reduce the pest population.
Use tolerant/resistant varieties.
Fix 3 feet sticks in the field @10/ha as bird parches to attract predatory birds
Spray chlorpyrifos 20% EC 450 ml/ acre or indoxacarb 14.5% SC @ 160-200 ml/ acre.
Spray solution of emamectin benzoate 5% SG@ 100 gm/acre.

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Nymphs are oval, scale-like and greenish-white in colour.
Adults are 1 mm long, covered completely with a white waxy bloom.
Nymphs and adults suck the cell sap from the leaves.
The affected leaves curl and dry.
The affected plants show stunted growth.
Whiteflies are also responsible for transmitting yellow vein mosaic virus or leaf curl disease.
Soil application of Carbofuran 3% GR 8 kg/acre at the time of sowing.
Spray Dimethoate 30% EC @ 250 gram/acre at fortnightly interval.
Pesticide spraying should be changed at every 15 days interval.

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Due to larvae being mature, they cause extensive damage by eating pods from inside.
After infection by the pod borer larvae, the pod is desiccated and dried in an early stage.
Before sowing, make deep plowing of the field and destroy insects eggs and cocoons in the soil.
Selection the short duration varieties of moong for sowing.
Maintain a certain distance between moong plants.
Spray Chlorpyrifos 20% EC 450 ml/ acre or Indoxacarb 14.5% SC@ 160-200 ml/ acre.
Spray solution of Emamectin Benzoate 5% SG@ 100 gm/acre.

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Plants infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Due to thrips attack reduces production.
For effective control spray profenofos 50% EC 400 ml/acre or fipronil 5% SC 400 ml/acre or thiamethoxam 25% SG 200 gm/acre after every 10 days interval.
Spray neem seed kernal extract (NSKE) 5% or triazophos @ 350 ml/acre.

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04/03/2019

Before storage, the grains should be properly dried.
The storehouses should be well ventilated and “pucca” cement concrete or brick made storehouses are recommended.
Maintenance of adequate free space (2-2 ft.) between stacks.
Stacks should be well separated from the wall and ceiling.
Time to time aeration of the storehouse reduces the moisture content and prevents the lesser grain borer growth.
Damp and wet bags should not be used for storing grains.
Grains should be frequently inspected at least once a month during dry season and once a fortnight during rainy season.
The damp and moist grains should be disposed off at earliest or should be removed from the store house to be dried in the sun.
Malathion spray @ 100 mg/square meter is a better choice.
Treating infested grain with dichlorvos @ 0.5 gm/square meter
Mix 10 gram of deltamethrin per liter of water spray in storage house.
Pesticides are poisons so it is essential to follow all safety precaution on labels.

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Plants infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Due to thrips attack reduces production.
For effective control, spray Profenofos 3 Ml/litre of Water or fipronil 5% SC 3 ml/litre of Water or Thiamethoxam 0.5 Gm/litre of Water after every 10 days interval.

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Both adults and nymphs damage the crop lacerate the leaf tissue and suck the sap.
Tender shoots, buds, and flowers are attacked as a result they become twisted and deformed, upward curling of leaves.
Spray Dimethoate 30% EC @ 250 ml/acre or Profenophos 50% EC @ 400 ml/acre or Fipronil 5% SC @ 400 ml/acre at fortnightly interval.
Pesticide spraying should be changed at every 15 days interval.

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The affected plants have to be uprooted and destroyed to prevent the spread of the disease.
For effective control of aphid fortnightly spray of acephate 75 % SP @ 300- 400 gm / acre or Imidacloprid 17.8% SL @100 ml /acre or acetamiprid 20% SP @ 150-200 gm/ acre.

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Like and share with other farmers by clicking on button below.