How to control Aphid in Green gram

Aphids are small, soft-bodied small insects that can be yellow, brown, green, or black.
They usually suck the sap from the plant by forming groups on the corners of small leaves and twigs and secrete sticky substance (honeydew), which increases the chances of fungal diseases.
Leaves and twigs may wither or become yellow due to severe infestation.
Spraying of Thiamethoxam 25% WG @ 100 gram/acre or Imidacloprid 17.8 %SL @ 100 ml/acre or Flonicamid 50% WG @ 60 gram/ acre to protect against aphid.
Use Beauveria Bassiana @ 250 gram/acre as biological treatment.

Management of aphids and jassids

Aphid and jassid is an insect sucking pest of jacid crops. They are very small in size. Their shape is like the tip of a lentil. It is usually yellow-green or white with dark spots on its front wings. Jassids fly away when there is a slight movement on the crop. In crops, these kits suck the juice from the leaves and under the buds of the leaves.
For control of aphid and jassid, Imidacloprid 60% FS or Thiamethoxam 30% FS with 10 ml/kg seed should be given. This seed treatment keeps the crop free from sucking pests for one month.
Spraying of imidacloprid 17.8% SL @ 100 ml / acre or acetamiprid 20% WP @ 100 gram / acre or acephate 50% + imidacloprid 1.8% SP @ 400 g / acre.

Biological Treatment:

Aphid is a small, soft bodied insect that can be yellow, brown or black colour.
They usually sucking from the plant by forming colonies at the corners of small leaves and release sticky honeydew, which increases the chances of fungal diseases.
Leaves and twigs may wither or become yellow due to severe infection.
To protect against Aphid pests, spray 100 gram Thiamethoxam 25 WG or 100 ml Imidacloprid 17.8% SL with 200 liters of water per acre.
Use Beauveria bassiana 1 kg per acre by biological means or can also be used in combination with the above pesticide.

Severe infestation can cause leaves and shoots to curl, wilt and stunted plant growth.
The honeydew secreted by the aphid after secretion causes many fungal diseases on plants.
The development of mould on the leaves indicates this problem.
Dry and warm climates are optimal for the growth of aphids.

Management of Leaf Roll Virus in Potato:-

The disease is managed by using virus-free seed potatoes.
Multiplying virus-free seed in aphid free areas.
Population of aphid vectors is controlled by application of suitable contact/systemic insecticides.
For effictive control of aphid, Spray Acetamiprid 20% SP @ 10 Gm/ 15 Litre water or Imidacloprid 17.8% SL @ 10 Ml/15 Litre water.

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Small green insects, adults are large pear-shaped green, yellow or pink in color.

Damage:-

Suck the plant sap from leaves, flowers, and pods.
The affected leaves often get cupped or become irregularly distorted, shoots become stunted and malformed.
Honeydew secreted by the aphids encourages the growth of Sooty mold.

Nymphs and adults are both soft-bodied pear-shaped, blackish in colour.

Large colonies of nymphs and adults are found on tender twigs and shoots as also on ventral leaf surface sucking the vital sap from the tissues.
The affected parts turn yellow, get curled, wrinkled and deformed in shape and ultimately dry and die away.
Fruit size and quality is also reduced.
The aphids also exude copious quantity of honeydew on which sooty mould develops, in turn, hinder the photosynthetic activity of the vines, resulting in stunted growth.
The fruits covered by sooty mould look unattractive and lose their market value.
Profenophos 50% EC @ 400ml/acre OR
Acetamipride 20 % SP 40-80 gm/acre OR
Acephate 50% + Imidacloprid 1.8% SP @ 300 gm/acre

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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31/08/2019

Aphids Attack in Chilli Crop:-

Control:-Spray the crop with Following insecticides at 15-20 days interval till the end of aphid population checked.

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