Sweet Potato (Ipomoea batatas)

Tortoise Beetles(Cassida circumdata)

Symptoms

  • Both grub and adult causes damage
  • Young grub scrape on the upper surface of the leaves and forms papery patches
  • Older grub and adults make large round holes in the leaves

Management

  • Collect and kill the grubs
  • Use insect-free vines as planting material
  • Use yellow sticky trap @12/ha

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Knapsack Sprayer (Capacity 10L) Dosage/acre (200 L) Dosage/hectare (500 L)
1 Malathion 50 EC Agromala, Agromala Malathion, Celthion, Hilmala, Kthion, Malaacid, Simala Milthion, Tagthion Malamar, Thisol Blue 2 ml 20 ml 400 ml 1000 ml
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Extremely Toxic
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Highly Toxic
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Moderately Toxic
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Slightly Toxic