Control of Leaf Miner in Cowpea

23/01/2018Posted on

Leaf Miner in Cowpea:-

Indentification:-

  • The adults are small delicate flies about 1/6 inch in length.
  • They are black and yellowish colour.
  • Eggs are round, microscopic and vary in colour from yellow to white.
  • The larvae, white yellowish coloration near the head are about 1/6 inch when fully grown.

Damage:-

  • A female lays about 300 to 400 eggs thrusting these in to leaf tissues with the help of sharp and pointed ovipositor.
  • On hatching the maggots mines the leaves in a zigzag fashion feeding on mesophyll with in these mines.
  • The infestation of this fly can easily be recognized by the presence of shiny whitish streaks on the leaves against the green background.
  • Adults puncture the leaves and feed on exuding sap.
  • The flowering and fruiting capacity of in infested plants is adversely affected.

Control:-

  • Spray the crop with Dichlorovos (2 ml/lit) +Neem oil (2 Ml/litre ) or Cartap hydrochloride 75 SG (1.5 gm/Litre) of water at fortnight intervals starting from 25 days after sowing to control the pest.

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Control of leaf miner in Tomato

23/09/2017Posted on

Leaf miner is the major pest in Tomato crop that causes damage in early stage. to control leaf miner in Tomato, spraying of traizofos 40% EC @ 40 Ml/ 15 litre water or Cartap hydrochloride 50% SP @ 25 Gm/15 litre water should be done.

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