[NAFEX] low spray brown rot control and Rosanna Kiwi
alandhaigh at gmail.com
Sat Feb 7 14:35:11 EST 2009
Thanks Mark for explaining for me. Yeah, my low spray approach is to use
highest legal rate as few times as possible. I was surprised how affective
Indar was in terms of actually removing brown rot from a site altogether
with a single application.
This is not a scientifically proven fact but I've had sites where brown rot
was destroying the stone fruit crop every year and I tried a single early
July spray (almost a month before Redhaven ripens in southern NY) and the
problem disappeared. Other sites, especially for Euro plums, a couple more
sprays are sometimes necessary, but I never have to spray stone fruit any
closer than a month from harvest for anything, any year, except cherries.
In home orchard situations, the only way to find out how few sprays you can
succeed with is to experiment downward.
The Kiwi I mentioned was almost certainly Rosanna. Some of the fruit is
only blushed but some turns completely purple when fully ripe. If it is a
variety that comes from Italy, I feel 100% sure. Of the 7 or 8 varieties
I've tried it is the clear winner here.
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