Leaf Miner pests in Orange Crop

Measures to Control Leaf Miner pests in Orange Crop

Leaf miners are small, worm-like insects that live inside the leaves of plants, feeding on the tissue between the upper and lower surfaces. They can be a nuisance to gardeners and farmers alike, as their feeding can damage leaves and reduce plant growth. There are several species of leaf miners that can attack orange trees, but the most common one is the citrus leaf miner (Phyllocnistis citrella). The adult citrus leaf miner is a small, moth-like insect with a wingspan of about 1/4 inch. The larvae are pale yellow or green and about 1/8 inch long. The larvae mine between the upper and lower surfaces of the leaves, creating long, winding tunnels. The mines appear as white or silvery streaks on the leaves. As the larvae feed, they damage the leaf tissue, which can reduce the tree's ability to photosynthesize and produce fruit.

Leaf Miner pests in Orange Crop

  • Type of Infestation: Pest
  • Common Name: Leaf Miner
  • Causal Organism: Phyllocnistic citrella
  • Affected Parts Of the plant: Leaves

    • Identification:

  • Size: They are very small, usually less than 2mm long, so direct observation can be challenging.
  • Appearance: Citrus leafminer moths have silvery and white iridescent forewings with brown and white markings and distinct black spots on each wing tip. Hind wings and body are white.

    • Environmental favorable factors for pests/Diseases:

  • Temperature: Most leafminer species thrive in warm temperatures, typically between 70-85°F (21-29°C). This is why they're often more active during spring and summer months.
    •
  • Humidity: Leaf miners prefer moderate humidity levels (around 60-70%). This helps them stay hydrated and avoid desiccation.

    • Symptoms of Pest/Disease:

  • Winding tunnels: Look for long, white or silvery tracks on the leaves. These are the mines created by the larvae as they feed between the upper and lower surfaces.
  • Leaf distortion: Leaves may appear crinkled, curled, or puckered due to the damage caused by the tunnels.
  • Discoloration: The areas surrounding the mines may turn yellow or brown, depending on the severity of the infestation.
  • Frass: Look for tiny black dots or streaks inside the mines. This is the frass (feces) left behind by the larvae.

    • Measures to control Pests/Diseases:

    Products Technical Names Dosages
    CHLORO20 Chloropyriphos 20 % EC 500 to 1200 ML Per Ac
    Propcyp Profenofos 40 % + Cypermethrin 4 % ec 400-600  per Acre
    SPINO45 Spinosad 45 % sc 60-90 ml  per Acre
    KACIN abamectin 1.9% EC 150 ml  for 200 liters of water per acre.
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