• 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

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 (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.