On Sat, 28 Jun 2003 08:57:36 -0400, Henry
wrote:


What you originally described didn't sound like whitefly to me

Henry, what did it sound like? I am slightly farsighted, but it is not
yet bad enough that I need glasses. They are snowy white--looked to me
like the larval state of white fly in some of the photos I saw.



but if
that's what you have, they are more of a nusance than anything and
should be killed by your Orthenex.

Just as soon as I sprayed today it rained--and the sky was not even
overcaset. I am so scr*wed. Or, rather, my roses are. It was supposed
to rain every day this week EXCEPT today.


Sevin will work on them, too.


I was surprised to see Sevin mentioned here, because it was one of the
first things I used on my roses for insects and one of the old crew
blew me out of the water for it. Might have been Mack, in fact.


There
are also some more enviro-friendly controls:
http://www.naturescontrol.com/whitefly.html

I'll take a look, thanks!






Yes, Sevin (carbaryl) does kill Japanese Beetles and is often the
recommended insecticide for them. But remember that it is not a
systemic - it is not absorbed by the plant. Beetles (and other
insects) have to ingest it directly off the leaves (or absorb it through
direct contact (i.e. be present when you spray so they get hit with
it). Anything more than a light rain will wash much of it off. It is
not nearly as toxic to vertebrates as Orthenex (WARNING - handle
according to the directions on the label!).

I use goggles and a respirator, gloves, long sleeves. Very
uncomfortable, but better not to take a chance.

Here's Cornell's profile of carbaryl:
http://pmep.cce.cornell.edu/profiles...baryl-ext.html

[...]

Because the name Sevin is a registered trademark, you'll have to look at
the active ingredient of insecticides to see it this is what they use.
Ortho, for instance, has carbaryl packaged under the name "Bug-B-Gon (R)
Lawn & Soil Insect Killer with Grub Control" but other Bug-B-Gon (R)
products use other active ingredients (Esfenvalerate or Permethrin
mostly). Again, read the entire label of whatever you buy.

Good to know. I have some Bug-B-Gon out there somewhere.



--
Henry