Conotrachelus nenuphar
Coleoptera: Curculionidae
Identification
• The larva is a legless, white grub up to 3/8" long. (a)
• The adult beetle is almost 1/4" long, rounded, with an elongated
snout. It is mottled with black, brown, and gray. (b)
Damage
• The larva tunnels through the fruit of peach, plum, apricot, nectarine,
cherry, and quince.
• The adult causes crescent-shaped, 1/8-1/4" long slits on the skin
of apple and the above fruits. (c)
Management
• Removing dropped fruit will eliminate some larvae.
• Insecticide applications are effective, starting at fruit blossom
petal fall.
Other Information
• Adult beetles overwinter; this allows damage to occur as soon as
fruits start to form.
• Adult beetles drop from the tree if disturbed. check for beetle presence
by laying a sheet under the tree, shaking branches, and checking for beetles
on the sheet.