Skip to Content.
Sympa Menu

nafex - Re: [NAFEX] organic-ish pest control in plums and peaches

nafex@lists.ibiblio.org

Subject: North American Fruit Explorers mailing list at ibiblio

List archive

Chronological Thread  
  • From: "Stephen Sadler" <Docshiva@Docshiva.org>
  • To: "'North American Fruit Explorers'" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] organic-ish pest control in plums and peaches
  • Date: Thu, 5 Jun 2008 23:05:40 -0700

Bonide lime sulfur is a dormant oil with calcium sulfide. It can control
peach twig borer, applied as directed as a dormant oil once in late fall and
once before bud swell in the spring. Peach twig borer is a different
creature than peach borer, and they are controlled differently - although a
healthy plant may be less susceptible to either. If you have peach borer,
you could spray the trunks weekly during moth activity (for most areas, July
and August) with Bacillus thurengiensis, Bt. You can also, or instead,
drench the trunks with parasitic nematodes, S. carpocapsae, in spring or
fall. If you're not committed to organic controls, you can paint the trunks
with white latex paint, providing a barrier to borer entry.

~ Stephen

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of Steve
Sent: Wednesday, June 04, 2008 8:41 PM
To: North American Fruit Explorers
Subject: Re: [NAFEX] organic-ish pest control in plums and peaches

Steven Moize wrote:
> Hi all,
>
> I have a question about using Bonide lime-sulfur spray on my plums for
borers. I assume they are borers. There are tiny (1cm) larva at the pit,
bored in from the outside.
>
> Any info on this product? Any suggestions?
>
> Steve
>
Borers bore into the bark and wood of fruit trees.
Do your larva look about like this?
http://tinyurl.com/4ohjlf (click where it says "click here" to see
the picture)
Do they leave scars on the fruit that start out looking like this?
http://www.uvm.edu/~organica/OrganicOrchardInformation/OrganicIPM/checklisti
mages/arthropods/PC/DSC_0009.jpg
Isn't lime-sulfur used as a fungicide? You need an insecticide to
control insects, not a fungicide.
Plum curculios lay eggs in plums (and other fruit) in the spring right
after the flowers have finished and the little fruits start forming.
If you already have the larva in your fruit, it's too late for the year.
Be ready for them next year.
If only a small portion of your plums have been infested, pick off all
the ones with the scars on them and send them far away (trash) or drop
them into a bucket of water and leave them in there until you are sure
the larva are dead.

Steve (the other one.... in the Adirondacks)

_______________________________________________
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