Part IV - Living Walls - Borders & Hedges: Yews and Hemlocks: Re: Imidacloprid for woolly adelgids was:Hemlock in these times?

» Marge_Talt - Re: Imidacloprid for woolly adelgids was:Hemlock in these times?

In response to message posted by anewleaf:

I've read about Imidacloprid being used against vine weevils, but didn't know it was effective for woolly adelgids..thanks for the info.

It appears that of the many products containing it, 3 forumlations of Merit are the only ones listed for use as foliar sprays or soil drenches for this pest. Which of these would you recommend? I normally stick to hort. oil and Safer's so have virtually no experience using the more heavy duty pesticides.

Just did a bit of a search on it. E X T O X N E T has a detailed explanation of potential hazards in using products containing it as well as product names. It appears it is toxic to bees, so care needs to be taken in using it as a foliar spray. also appears to affect some ground feeding birds.

I found your explanation of how these dratted pests attack hemlocks most informative...thanks for posting it.

-- posted by Marge_Talt