Raspberry Cane Borer Info Learn About Cane Borer Control

Manual raspberry cane borer control is relatively easy and effective. Find affected canes and cut them an inch (2.5 cm.) or so below the lower girdle. The larvae spend the first year or so of their lives in this spot, so this method has a very high success rate. Burn any canes you remove in this way.

How do you prevent cane borers?
What do cane borers look like?
What is a rose cane?
What bores holes in rose buds?

How do you prevent cane borers?

A good way to help prevent them from boring into the ends of rose canes is to seal the cut ends immediately after pruning or deadheading (the removal of old spent blooms). The use of Elmer's multi-purpose glue or the white tacky glue available at craft stores is great to use for sealing the cut ends of the canes.

What do cane borers look like?

The adult cane borer is a slender, black beetle with long, black antennae, a black head, a yellow prothorax, and a black body. Adults are about 1/2" long. The larvae are legless, light-colored borers found within stems. Fully grown larvae are about 3/4" long.

What is a rose cane?

A main cane is a cane that grows up from the base of the plant – or at least from the bottom one foot. They are vigorous, the thickest part of the rose and grow to the full height of the plant. ... The main canes are the structural, supporting, part of the climbing rose and the laterals grow off of them.

What bores holes in rose buds?

Budworm Caterpillar Damage and Symptoms

The damage that they do to rose blooms is evident and you will notice the black globs they leave behind as well. Budworms will leave somewhat round to oblong holes in the petals of the blooms on your roses and other flowers as they destroy them.