Crop Protection :: Pests of Mango
Mango stem borer: Batocera rufomaculata
Symptoms of damage |
- Grub tunnels in the sapwood on the trunk or branches
- Grub bore into the sap wood and macking irregular tunnels.
- Feeding the vascular tissues
- interruption of nutrient and water transport on the tissue
- Drying of terminal shoot in early stage
- Frass comes out from several points and some times sap oozes out of the holes
- Wilting of branches or entire tree
Identification of pest
- Grub - Linear, fleshy, apodous
- Adult - Grayish beetle with two pink dots and lateral spine
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Management
- Remove and destroy dead and severely affected branches of the tree
- Remove alternate host, silk cotton and other hosts
- Grow tolerant mango varieties viz., Neelam, Humayudin.
- Swab Coal tar + Kerosene @ 1:2 or Carbaryl 50 WP 20 g / l (basal portion of the trunk - 3 feet height) after scraping the loose bark to prevent oviposition by adult beetles.
- If infestations are severe then apply the copper oxychloride paste on the trunk of the tree.
- One celphos tablet (3 g aluminum phosphide) per hole
- Apply carbofuran 3G 5 g per hole and plug with mud.
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