Columbine Plants

I want to fertilize my perennial garden, but I need to spray for insects, which should I do first?

Zone 81635 | kgrunska added on June 21, 2018 | Answered

I haven fertilized my perennial garden yet this season, but I see some plants have been chewed on plus my Columbines have gray mold on the leaves. Which should I do first, fertilize or spray insecticide/ mold control?

A.Answers to this queston: Add Answer
Answered on June 21, 2018

If the mold is black "sooty mold", it could be related an insect pest that puts out 'honeydew' excretions that the mold grows on. Control the pest and you will control the sooty mold without fungicides.

Was this answer useful?

Answered on June 21, 2018

You can do the fertility and pest management simultaneously. but the pest control is maybe more urgent in order to avoid the pest infestation and mold infection progressing into advanced conditions which are harder to control.

Don't spray without good reason, identify the target pest and use appropriate and least toxic materials. For example if you see chewed leaves, is it old damage or current, is the feeding still in progress or has the caterpillar, if that's what it is, come and gone in the feeding stage of their life cycle. What mold do you observe? Are there growing conditions that you could correct for more air and light circulation, or if you are overhead watering is that what is contributing to the condition.
IPM is Integrated Pest Management, or you can alternately say Intelligent Plant Management. Know what you are working with and minimize pesticide use.

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

Learn From
Your Peers on
Our Blog

Visit Our Blog

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

Learn More