I have have the same conditions every year. Vine looks great and right about now it looks like something is starting to destroy the leafs. Can anyone suggest a good all around pesticide? I am also looking for a good fertalizer since my grapes only grow to the size of small marbles and are pretty much mostly sour :(
Any help appreciated, I am new to growing, did an "ok" job at pruning and have to deal with what i have now, not what I "should" have done months ago... Thanks. ps: Im in PA
I Googled for +"fertilizer" +"wine grape" and found:
Compost is good for the vineyard soil (article about a Pennsylvania organic vineyardist)...
and Penn State viticulture department...
If you are willing to use natural fertilizers like some of the vineyards here in Sonoma County, CA, you'd plant soybeans or fava beans in the late fall (October-November), then disc them down in late spring.
And here's an article about use of synthetic fertilizers in California...
Good luck Gene
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