Re: CULT: ORGANIC SOLUTIONS


Margie; Much has been written on the use of nematodes. here is a site:
http://www.agnr.umd.edu/ipmnet/98-2nmn2.htm  
by the individual who studied the borer and the use of nematodes 
under an AIS grant. The Canadian Iris Soc. had an excellent article 
incorporating some of the grant study. Here is the CIS web page 
address: www.members.home.net/cdn-iris     

Bottom line is which is more reliable. From what I have read the 
success rates under "ideal conditions" match that of cygon. The key 
is ideal conditions.        

Merit is a systemic and I would say that earthworm kill would be 
neglible. Cygon on the other hand would kill.
 
Al Bullock
Z7 No. Va.

--- In iris-talk@y..., birdwoman424@a... wrote:
> 
> 
 Some people have mentioned the 
> > use of merit and/or cygon, which i think are chemicals to control 
iris 
> > borers. I don't want to add chemicals to the soil because they 
will kill 
> > the earthworms. What can I add that's natural or organic to 
control the 
> > iris borer? I heard of using these other things called nematodes 
(sorry 
> > about the spelling - hope it doesn't count - LOL).
> > thanks,
> > 
> > 
> > Margie Brown, New York   Zone 7
> 
> 
> 
> [Non-text portions of this message have been removed]


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