What's your question? Ask

Hydrangea Plants

Q.How Do I Prevent My Hydragea From Getting Worms Inside The Leaf Clusters In The Spring?

Zone Kitchener, Ontario, Canada Zone 4 I think. | cnjbecker5 added on May 23, 2020 | Answered

I live in southern Ontario. In the spring my hydrangea get small worms that seal the forming leaves shut and then eat the forming flowers inside the leaf cluster. How do I prevent this? I usually squeeze each leaf cluster to kill the worm inside and then pull the leaves open.

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on May 25, 2020

Ah! Leafrollers... Terrible.

The best way to kill these guys off for good is to infect them with Bacillus Thuringiensis. This common bacteria is harmless to us, but detrimental these pests, (AND MOSQUITOES) so it is a safe option, environmentally.

Here are some articles that will help:



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...
Hydrangea Plants
Join Us - Sign up to get all the latest gardening tips!

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