I agree with Kari’s analysis. Sounds like Marssonina. Bring or send some up if
you’d like.
Dan
—
Daniel R. Cooley, Professor of Plant Pathology
Stockbridge School of Agriculture
418 Paige Lab
161 Holdsworth Way
University of Massachusetts, Amherst, MA 01003
When this is on a Golden Delicious at this time of year after a summer like
this, it’s likely that it’s necrotic leaf blotch. No pathogen has been
associated with it, so we blame it on bad horticulture and call it a
“physiological disorder”. It’s interesting that zinc and ziram applied in the
My guess is that it’s not so much the heat as the humidity, Kevin. I think when
you get as dry as it gets in Riverside on a hot day, it may indeed kill off the
epiphytic bacteria, and make further transmission difficult. Today and tomorrow
it looks like your dewpoint is 47 to 52 F (8 to 11
Norm Lalancette did some tests on peaches. It didn’t work.
Dan
> On Mar 31, 2017, at 5:42 PM, Arthur Kelly wrote:
>
> Does anyone have any experience with Serenade for brown rot?
>
> Sent from my iPhone
> ___
> apple-crop
I agree with Jon and David Doud. A dry year with no crop will knock down the
initial inoculum this coming year, decreasing brown rot pressure at the start
of the season relative to most years. But it doesn’t take long for the brown
rot fungus to build up again, and with a few old twig cankers
Send some of that weather our way! Southern New England increasingly feels and
looks like Southern California or Eastern Washington this summer.
> On Jul 26, 2016, at 11:40 AM, Kushad, Mosbah M wrote:
>
> Make sure to keep the material in a dry area as the weight will