Hey Laura, long time.

I just dormant sprayed
yesterday. First few days of above
freezing temp in a month.

It is now raining!!!!
Anyone know if that affects the dormant spray
effectiveness.

To answer your question. Apparently
dormant spray kills grubs by smothering them.

So you should spray in early spring when
the slugs are starting to crawl out but the roses
are still dormant.

--
Theo in Zone 5
Kansas City

"R & L Porter" wrote in message
...
Hi all,

every year I have had problems with rose slugs (sawfly larvae)
and spend the early part of summer picking and squishing.
Eventually I give up, but they don't -- they continue to
munch away and end up skeletonizing the leaves of their
fave roses.

I was wondering if an application of dormant oil in the
Spring would help smother the larvae -- on the canes
and on the surrounding earth. Any ideas, opinions?

Thanks,
Laura