[Growwine] worm damage

[Canada Vintage]

These are cutworms. Same problem in the tobacco, tomatoe, and eggplant industries. Not much you will be able to do about it.  PEsticides don't work well on these worms since they are nocturnal and stay underground most of the day.  If you do use pesticide, you need to apply at night, when worms are mobile.Anthony Carone (Zone 4b-5a)Canada Vintage - Carone Vineyards, a division of Carone Enterprises~~~~~~~~~~~~~~~~~~~~~~www.CanadaVintage.com~~~~~~~~~~~~~~~~~~~~~~


From: markhart at hardygrapes.comTo: growwine at littlefatwino.comDate: Thu, 12 Jun 2008 19:33:24 -0500Subject: Re: [Growwine] worm damageLarry, 

Curiosity has got the best of me.  I'm stumped.  I can think a catapillar that damages grape foliage in the pre-bloom to bloom stages that looks like that.  My guess is it is a generalist pest, and not grape-specific.  Any chance you could get a photograph before you do them in?

Another 'soft' (sensu OMRI) product you might consider is a neem-oil based product.  I don't know about registration in Canada.  Last I knew that was still in the pending stage for use on grapes.

Mark Hart



On Jun 11, 2008, at 8:57 PM, Larry Paterson wrote:


We are having a problem with some small (about 1 cm long) black worms on the leaves.  In some cases they have almost defoliated entire vines.
 
What is available to fight these (safely) without special access to chemicals?
 
Lardy
 
Larry Paterson, lfw, rd, adcc(Little Fat Wino, Roving Drunk, Alcohol Distribution Channels Critic)
 
http://www.littlefatwino.com/
 
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