Knockout Rose Bushes
Q.

I have three pink rose bushes. I think they are knock out, I did not plant them. The last two years the blooms turn brown and doe

Zone 76310 | Harry & Alice Gordon added on May 26, 2018 | Answered

What is causing my roses to turn brown and not open up?

A.
A.Answers to this queston: Add Answer
MichiganDot
Answered on May 27, 2018

It sound like you may have an insect problem. Rose curculios are easy to spot so we can rule them out. Thrips and rose midges are very small and hard to find. Thrips suck the juice from buds and rose midge eggs are laid inside a developing bud. Both cause the bud to fail, turn brown and fall. Here are articles on rose midges followed by thrips: https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-midges.htm. https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-thrips.htm

The internet is full of potential control measures. Using systemic insecticide will harm good and bad bugs, including bees, so it is reserved for severe infestations.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Knockout Rose Bushes
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More