[Growwine] worm damage

[Ryan]

Interesting, I've seen this exact kind of damage all over the leaves of wild
grapes in central Ontario this spring.

Ryan

On Fri, Jun 13, 2008 at 10:35 AM, Larry Paterson <littlefatwino1 at cogeco.ca>
wrote:

>   http://littlefatwino.com/temp13.jpg
> http://littlefatwino.com/temp14.jpg
> http://littlefatwino.com/temp15.jpg
>
> not great pictures, look for the small black lines.  They are soft, squish
> easily, all over the place.
>
> Rain forecast for the next two days - would I be better to wait for better
> weather?
>
> Lardy
>
> Larry Paterson, lfw, rd, adcc
> (Little Fat Wino, Roving Drunk, Alcohol Distribution Channels Critic)
>
> http://www.littlefatwino.com/
>
>
> ----- Original Message ----- *From:* Mark Hart <markhart at hardygrapes.com>
> *To:* growwine at littlefatwino.com
> *Sent:* Thursday, June 12, 2008 8:33 PM
> *Subject:* Re: [Growwine] worm damage
>
> Larry,
> 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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