Skip to Content.
Sympa Menu

nafex - Re: [NAFEX] Captan/Sulfur

nafex@lists.ibiblio.org

Subject: North American Fruit Explorers mailing list at ibiblio

List archive

Chronological Thread  
  • From: <dmnorton@royaloakfarmorchard.com>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Captan/Sulfur
  • Date: Fri, 16 May 2008 07:14:08 -0500

I did understand that you did not want to mix captan and sulfur, but they did slightly mix on the overspray to the other tree. As you state, it probably is no big deal. Plum curculio start to emerge as soon as daytime AND evening temperatures exceed 60 degrees F. They will begin to move especially when a light, misty rain or humid night occurs with spring warming trends. I have trapped no codling moth or plum curculio so far this season. Last season our biofix on codling moth was May 10. It's been too cool for many pests to emerge. The typical phenology time for plum curculio sprays to begin is petal fall, but since the nights have been so cool, the timing this season ids going to be off. That's why it's a good idea to use degree day models instead of tree phonology to time sprays.

Dennis Norton
Royal Oak Farm Orchard, Zone 5
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
http://www.revivalhymn.com
----- Original Message ----- From: "Mark Dorogi" <mddorogi@comcast.net>
To: <dmnorton@royaloakfarmorchard.com>; "'North American Fruit Explorers'" <nafex@lists.ibiblio.org>
Sent: Thursday, May 15, 2008 8:51 PM
Subject: Re: [NAFEX] Captan/Sulfur


I started the discussion...I didn't WANT to mix captan and sulfur, but I ran
out of captan and so switched to sulfur. I rinsed the sprayer first but
since some trees are close together, there was some small amount of
overspray and some branches got some of each.

No big deal, I'm sure.

I did manage to get in my petal fall spray in tonight. The weather is
funny, it has been cool. There are small apples, but too small yet to bag.
I don't see any curculio; I think it has been too cool for them to emerge
yet.

Thanks for all the comments.


Mark
Southeast MI

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of
dmnorton@royaloakfarmorchard.com
Sent: Thursday, May 15, 2008 9:15 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Captan/Sulfur

Mark,

Yeah, you are right, but combinations of captan and sulfur can cause
necrotic spotting on leaves of susceptible varieties (e.g., Jonathan,
MacIntosh), so I usually tell growers not to mix the two.
Captan is more effective on scab than sulfur anyway, so I'm with you....I'm
not sure why anyone would want to do this anyway.

Dennis Norton
Royal Oak Farm Orchard, Zone 5
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
http://www.revivalhymn.com
----- Original Message ----- From: "Mark & Helen Angermayer" <hangermayer@isp.com>
To: <dmnorton@royaloakfarmorchard.com>; "North American Fruit Explorers"
<nafex@lists.ibiblio.org>
Sent: Wednesday, May 14, 2008 5:11 PM
Subject: Re: [NAFEX] Captan/Sulfur


Dennis,

The Michigan tree fruit spray guide shows Captan and sulfur compatible.
Captan is sulfur based, so one could probably overdo it by adding too much
sulfur to the Captan (I'm not sure why anyone would want to do this
anyway)
but the list shows it is compatible. Are you sure your not thinking of
Lime
Sulfur which is incompatible because of the alkalinity? The spray guide
also shows sulfur is fully compatible with the organophosphates including
Malathion.

Mark
KS

----- Original Message ----- From: <dmnorton@royaloakfarmorchard.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Wednesday, May 14, 2008 2:46 PM
Subject: Re: [NAFEX] Captan/Sulfur


I know that you cannot mix Captan and Sulfur, but you can mix Captan and
Malathion, which are 2 of the products in Bonide's Fruit Tree Spray. My
rule of thumb is "When in doubt, don't!" But to be correct, try the jar
test by mixing the appropriate rates in a quart jar to test
compatibility.
Then spray some on a test tree or part of a tree to see if there are
phytotoxicity issues.

Dennis Norton
Royal Oak Farm Orchard, Zone 5
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
http://www.revivalhymn.com
----- Original Message ----- From: "Mark Dorogi" <mddorogi@comcast.net>
To: "'North American Fruit Explorers'" <nafex@lists.ibiblio.org>
Sent: Tuesday, May 13, 2008 9:20 PM
Subject: Re: [NAFEX] Captan/Sulfur


> Windy here too. I'm a little behind on my fungicide spray. It's > petal
> fall
> time, it's supposed to rain again, and I haven't had time to do a > petal
> fall
> spray yet :(
>
> Question. What about the combination of sulfur and malathion? I > gather
> that
> they shouldn't be tank mixed, is that correct (the respective labels
have
> no
> information either way).
>
> Can they be sprayed separately a few days apart?
>
>
> Mark
>
> -----Original Message-----
> From: nafex-bounces@lists.ibiblio.org
> [mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of William C.
> Garthright
> Sent: Monday, May 12, 2008 10:17 PM
> To: dmnorton@royaloakfarmorchard.com; North American Fruit Explorers
> Subject: Re: [NAFEX] Captan/Sulfur
>
> Thanks for the info!
>
> Although the Mancozeb I found isn't rated for apples, I'd forgotten
> that
> I did find some Immunox (myclobutanil) which is. So I do have another
> choice, in addition to Captan.
>
> But I'm having a hard time finding a day calm enough to spray. This is
> Nebraska, after all. :-)
>
> Bill
> Lincoln, NE (zone 5)
>
> -- > He who fights with monsters might take care lest he thereby become a
> monster. And if you gaze for long into an abyss, the abyss gazes also
> into you. - Friedrich Nietzsche
> _______________________________________________
> nafex mailing list
> nafex@lists.ibiblio.org
>
> Reproduction of list messages or archives is not allowed.
> This includes distribution on other email lists or reproduction on web
> sites.
> Permission to reproduce is NEVER granted, so don't claim you have
> permission!
>
> **YOU MUST BE SUBSCRIBED TO POST!**
> Posts from email addresses that are not subscribed are discarded.
> No exceptions.
> ----
> To subscribe or unsubscribe, go to the bottom of this page (also can > be
> used
> to change other email options):
> http://lists.ibiblio.org/mailman/listinfo/nafex
>
> File attachments are NOT stripped by this list.
> TAKE STEPS TO PROTECT YOURSELF FROM COMPUTER VIRUSES!
> Please do not send binary files.
> Use plain text ONLY in emails!
>
> NAFEX web site: http://www.nafex.org/
>
>
>

_______________________________________________
nafex mailing list
nafex@lists.ibiblio.org

Reproduction of list messages or archives is not allowed.
This includes distribution on other email lists or reproduction on web
sites.
Permission to reproduce is NEVER granted, so don't claim you have
permission!

**YOU MUST BE SUBSCRIBED TO POST!**
Posts from email addresses that are not subscribed are discarded.
No exceptions.
----
To subscribe or unsubscribe, go to the bottom of this page (also can be
used to change other email options):
http://lists.ibiblio.org/mailman/listinfo/nafex

File attachments are NOT stripped by this list.
TAKE STEPS TO PROTECT YOURSELF FROM COMPUTER VIRUSES!
Please do not send binary files.
Use plain text ONLY in emails!

NAFEX web site: http://www.nafex.org/



--
No virus found in this incoming message.
Checked by AVG.
Version: 7.5.524 / Virus Database: 269.23.16/1432 - Release Date: 5/14/08
7:49 AM






_______________________________________________
nafex mailing list
nafex@lists.ibiblio.org

Reproduction of list messages or archives is not allowed.
This includes distribution on other email lists or reproduction on web
sites.
Permission to reproduce is NEVER granted, so don't claim you have
permission!

**YOU MUST BE SUBSCRIBED TO POST!**
Posts from email addresses that are not subscribed are discarded.
No exceptions.
----
To subscribe or unsubscribe, go to the bottom of this page (also can be used
to change other email options):
http://lists.ibiblio.org/mailman/listinfo/nafex

File attachments are NOT stripped by this list.
TAKE STEPS TO PROTECT YOURSELF FROM COMPUTER VIRUSES!
Please do not send binary files.
Use plain text ONLY in emails!

NAFEX web site: http://www.nafex.org/








Archive powered by MHonArc 2.6.24.

Top of Page