Dave -

Quality stuff - I have used a lot of it at all times of year. As oils go,
this one is very good-to-excellent.

Mike


--
Mike LaMana, MS
Heartwood Consulting Services, LLC
Toms River, NJ
www.HeartwoodConsulting.net



"David J Bockman" wrote in message
...
Mike,

Your experiences with Sunspray Horticultural Oil, if any?

Dave

"Mike LaMana" fake@MikeatHeartwoodConsultingdotnet wrote in message
...
The insect has 2 or three generations per year, and has the semi-odd
habit
of going into a summer estivation (sleep-mode). Thus it seems to be
better
to spray (if using a high-quality horticultural oil) at least twice per
annum, maybe thrice.

Late summer / early Fall and early Spring seem to be the most effective
IMO.
It is possible to have great effect with oil so I do not recommend going
to
more aggressive chemicals such as imidacloprid (Merit). Tree companies
push
the Merit because they can charge more for it.

This is an easy bug to control as long as it is possible to really
drench
the tree with sprays - trees too tall (over 50') or too close to
obstructions need other treatments.

Good question!

--
Mike LaMana, MS
Heartwood Consulting Services, LLC
Toms River, NJ
www.HeartwoodConsulting.net




"Robert11" wrote in message
...
Hello:

Regarding the woolly adelgid problem on Hemlock trees:

Live outside of Boston.

Very confused over when the "best" time to spray is.

Spoke to a few arborists that do this, but i have the feeling they
have
a
stock answer that
the best time seems to be whenever one calls them.

Might someone please summarize for me when I should have spraying done
,
and
what treatment (oil, soap, type, etc. ), when in the year ?

Is the above answer different if one sees no problem, but wants to
prevent
one, vs
the belief that there is already a problem.

Much thanks,
Bob