Hi Dave! Always a pleasure to read you! I always learn something new!
1. Blossom Protect is ridiculously expensive compared to strep.
Of course, I agree. But since we pay a ridiculous amount for strep in Canada,
BP is almost affordable. We should really start a business = I send Canadian
Hello, Vincent —
I believe that the problem Brian had in the year where 6 step sprays were
required was lack of chilling hours to complete dormancy. If apples do not get
enough chilling, they produce flower buds over a very long interval, and new
flowers just keep opening.
Concerning
Hi, I’m late in this exchange, but my grain of salt…
First, I entirely agree with Dave… except for this:
would argue that strep is still the cheapest, most effective, and most proven
product for controlling blossom blight, and I see no reason to use other
products except where strep resistance
Hi!
Thanks for the follow-up information, Brian. Using six strep sprays during
bloom, while I can see how it may be necessary,
Actually, I don’t understand how 6 sprays on the same flowers can be necessary.
Once open flowers are sprayed with strep, the likelihood of building a
sufficient
Good point Vincent!
Makes sense to me.
Kerik
At the end of the day, when a number of trials give results “at par”
with strep, I don’t see how we can argue that ‘more bacteria survive’
--
Kerik D. Cox, Ph.D., Associate Professor
Plant Pathology and Plant-Microbe Biology Section
School of
While dealing with getting Kasumin 2L registered here in MA, it was pointed
out that on the Federal label it says:
• Do not apply kasugamycin in orchards in which the soil has been
fertilized with animal waste/manure.
• Animal grazing in treated areas is prohibited. The public must be
notified by
Thanks for the follow-up information, Brian. Using six strep sprays during
bloom, while I can see how it may be necessary, does make me a bit more uneasy
about selecting for strep resistance. In northeastern United States, we often
need two sprays during bloom, sometimes three, and very
I should have added one more thought: Probably the very best strategy for
avoiding selection for strep-resistant Erwinia amylova (Ea) is to prevent fire
blight from becoming established in the orchard in the first place. To that
end, the integrated strategy that Brian described (copper early,
Hi Dave,
I've wondered about this. In several of our orchards. All of the
epiphytes all nearly have 100% of the population strep resistance even
at the start of the season, so in theory no applications of strep would
just as bad as several. The predominance changes over the season and it
I should be at 4 sprays or less (3 last
year) most of the time. The six sprays occurred after the "year
without a winter" several years ago, when the low for the entire
winter was 15F and that was only reached twice. We were 5 below
here last year, and normally
Would oxytetracycline be an effective economical alternative in those
borderline instances?
Mo Tougas
On Fri, Mar 20, 2015 at 10:18 PM, Smith, Timothy J smit...@wsu.edu wrote:
HI Brian,
Yes, that would work well. Kasumin has worked well in Michigan.
Tim
*From:*
No resistance from bloom sprays is good news. I have had no control
problems with copper prior to green tip, strep timed by Maryblyt,
Apogee to minimize pruning/harden shoots to possible shoot blight,
and control of aphids/leafhoppers at petal fall/1st cover. A few
years
HI Brian,
Yes, that would work well. Kasumin has worked well in Michigan.
Tim
From: apple-crop-boun...@virtualorchard.net
[mailto:apple-crop-boun...@virtualorchard.net] On Behalf Of Brian Heatherington
Sent: Thursday, March 19, 2015 1:29 PM
To: Apple-Crop
Subject: [apple-crop] Kasugamycin
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