Re: Nematicides for foliar nematodes

Andrew,
    You may have an old label for Nemacur 10G or an old bag.  A few years ago Bayer pulled all ornamentals off the Nemacur 10G label.  I was told it was an EPA red tape issue and the ornamental market was not worth to effort. It is now only labeled for turf use (i.e. important uses like golf courses where some elected and appointed officials spend time).  In a few states there is a supplemental label for specific ornamental use.  I think Florida has a supplemental label as well as Michigan.  One thing that must be monitored carefully is avian toxicity.  It seems birds like to pick up the little granules off the ground so it is very important to incorporate the material by cultivation or watering.  Too much watering will push the active inngredient through the root zone. 
Jeff
----- Original Message -----
From: a*@hostahaven.com
To: hosta-open@mallorn.com
Sent: Tuesday, November 21, 2000 6:20 PM
Subject: Re: Nematicides for foliar nematodes

Hi Dan,
RE:>>What we need is a labeled nematicide like Temic, Oxamyl or Nemacur for
hostas.

-----
As I understand it, and I could be wrong (but as you can see from my other posts, it is not likely--Tee Hee Hee!), Nemacur 10 IS labeled for Hosta, while Nemacur 15 is NOT labeled for Hosta, at least in IA.   This I discovered while attempting to purchase a 50lb bag here in Iowa (smallest size available for granular form from Bayer Agricultural).

Because of the lateness of the season, I'm holding up on trying to make this purchase, but I will research this further to see what is the status.  This IS just one of many areas where significant improvements are needed in the EPA's efforts to ensure our environment is protected.  The regulation becomes unbearable when manufacturers must re-label everything when the basic active ingredients have not changed.  If someone has a form that we can send to our legislator's about this, I'd be glad to fill one out (Beth--are you listening?).  Even the IA DofAg (IDALS) admits that this creates excessive red tape.

BTW, I did take your advice and sit for the chemical applicators test.  Have one more to take and then I will be "certified" for the outside AND the inside of a  greenhouse.  Strange how they require both tests but I suppose it makes sense when trying to make sure folks don't injure themselves or the environment.

The Cholinesterase Inhibitors in Nemacur appear to be nothing to mess with...
For anyone curious about the risks, here is a site that describes the risks of using such organophophates like fenamiphos (the stated active ingredient in Nemacur) --http://www.ace.orst.edu/info/extoxnet/tibs/cholines.htm 

-- 
Andrew Lietzow, Plantsman            http://hostahaven.com
HostaHaven.com                       a*@hostahaven.com
1250 41st Street                     515-274-0300 voice
Des Moines, IA 50311-2516
 
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