Re: late blight

**K* M* <k*@iol.ie>**

Experiments with bacillus subtilis here in Ireland have found it to be  
completely ineffective against late blight when used as a spray. We  
rarely see early blight.

Removing the foliage the moment late blight strikes and waiting for a  
couple of weeks before harvest can often save a blight affected potato  
crop

kathryn

On 10 Aug 2009, at 21:23, C.L. Fornari wrote:

>
> Lorraine  wrote:  Simple application of bacillus subtilis which of  
> course needs
> reapplication after rain can protect desired vegetation in  home  
> gardens
> from getting this dreaded disease."
>
> Oh if it were only so... Here in Massachusetts we have been hit hard  
> with late blight. It is ironic that we normally battle early blight.  
> My husband and I have two vegetable gardens, one at our house on  
> Poison Ivy Acres, and another in a community garden about two miles  
> away. We have sprayed the tomatoes in both gardens with Bacillus  
> subtilis because in the past this has allowed us to suppress the  
> early blight enough to give us a good crop of tomatoes.  The late  
> blight has hit in the community garden and we will have no tomatoes  
> from that garden this year. We've harvested all of the potatoes from  
> that garden (80 plants) and those that don't go to the local soup  
> kitchen (Plant a Row!) are being made into twice-baked potatoes and  
> frozen.
>
> If we have late blight in the home garden it is too soon to see -  
> we've started to spray with copper in case we are ahead of it, but  
> I'm not too optimistic.  The Bacillus subtilis - applied weekly AND  
> right after a heavy rain - gave us no protection from late blight.  
> Next year I'll use copper early on and we'll hope that we don't have  
> such a cool, rainy summer.
>
> all the best,
> C.L.
> C.L. Fornari
> www.gardenlady.com
> blog www.wholelifegardening.com
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