Aphid in Bottle gourd

23/09/2019Posted on
  • The affected parts turn yellow, curled, wrinkled and deformed in shape and ultimately dry and die away.
  • 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.
  • Fruit size and quality are 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 mold look unattractive and lose their market value.

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Control of Aphids in Pea

17/12/2018Posted on

Control of Aphids in Pea:-

  • 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 growth of Sooty mould.

Control:-

  • Spray the crop with Following insecticides at 15-20 days interval till the end of aphid population checked.
  1. Profenofos 50% EC @ 50 ml/ Pump.
  2. Acetamiprid 20 SP @ 10 gm/Pump.
  3. Imidacloprid 17.8% SL @ 7 ml/pump.

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Control of Aphids in Cabbage

05/09/2018Posted on

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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