Our annual end-of-summer contest is here, come on down to the Dave's Garden County Fair!

PLEASE HELP Rose cane borer damage how far to cut?

Vienna, VA(Zone 7a)

In the course of dead-heading a sickly-looking bud on my white rose, I saw a weird brown discoloration at the core of the half-inch diameter cane. Yep, cane borer. I cut down about six inches until I hit about four larva (eeew). Satisfying to cut those things in half.

But my question: How far down do I need to cut? I kept snipping and snipping, looking for a solid white cross-section, but I keep seeing a small dot of brown at the center of the cane, now about 8 inches down (and past a major branch) from where I found the borer larva. The dot is way too small for a larva, but it's the same color brown as the borer damage.

Do I need to keep cutting the cane down to where the cross-section is all white? Or is a brown dot normal for the center of the cross-section of a large healthy cane?? (And yes, I've sealed the cut with glue!)

Post a Reply to this Thread

You cannot post until you , sign up and subscribe. to post.