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Naomi from Montclair, Nj writes,

How effective is Bayer Advanced Natria compared to professional spraying?

I have 4 hemlocks in my garden with small infestations of wooly adelgid. In the past 2 years, a professional arborist has sprayed spring, summer and fall to control it with horticultural oil. Very costly. Wondering if Bayer's product has been thoroughly tested on HWA (hemlock wooly adelgid)? Does Advanced Natria require 3-season applications? Thanks. you.


Bayer Advanced Natria Multi-Insect Control would be very similar to using any other kind of horticultural oil that the professional has been using. Bayer recommends that you repeat treatments in 1 – 2 weeks as needed.

Answer last updated on: 04/24/2013

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