Black Spider Disease - Knowledgebase Question

Jackson, NJ
Avatar for rfulton5
Question by rfulton5
July 26, 1999
A contractor working at my house recently suggested that I had "black spider disease" in my shrubs and evergreens surrounding my home. He said that the inside of the shrubs were yellowed and that the stems and branches were weakened. I have never heard of such a condition and always felt that spiders were a natural occurance in the garden and sometimes useful. Is there such a conditional as "black spider disease" and if so, what is the cause and treatment?

Answer from NGA
July 26, 1999
To be honest I've never heard of it. It is true that the innermost parts of dense shrubs will die out due to lack of sun and air, especially on those that are trimmed repeatedly such as yews used in a foundation planting. (I suppose that would make a nice home for spiders, hence the name.)

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )

Today's site banner is by Lestv and is called "Coral Sunset"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.