Return to the Fruit & Orchards Forum | Post a Follow-Up

 o
Plum/Pear shot hole & leaf curl

Posted by lanb2 WA (My Page) on
Sat, Jun 23, 12 at 12:58

Hi,

I have a couple of plum (yellow, red) trees and Asian pear trees.

Since last year, the leaves on these trees have started
having little brown holes and the flowers bloom but just
brown out and wither.

This season I sprayed "spectracide fungicide" containing myclobutanil on them when the leaves/blooms set. While this
helped a bit, the flowers mostly withered away and the leaves died too.

Now, some pear leaves are starting to curl as well.

I just switched to "all purpose fruit tree spray" containing
neem oil and pyrethrin.

Here are some pics

http://i49.tinypic.com/2ljj7kh.jpg

http://i47.tinypic.com/zv3r4k.jpg

Is my diagnosis & remedies correct ?

This is in the wet pacific northwest. Thanks !

Here is a link that might be useful: Shot hole pic


Follow-Up Postings:

 o
RE: Plum/Pear shot hole & leaf curl

Shot hole is usually bacterial spot which is a bacterial disease that few sprays work well on. Myclobutanil is a good spray for many things, but not for shot-hole. Re: the all purpose fruit spray, nothing in there really helps against anything. The best spray for shot-hole is copper at leaf fall and again in spring just before leaf-out.

Your curling pear leaves I can't tell for sure what is happening. That is often caused by aphids so I would look for aphids in the curled-up bits. Your all-purpose spray may actually work on that, aphids is one of the few things such a spray will be good for. There are several other causes of pear leaf curling besides aphids.

Scott


 o
RE: Plum/Pear shot hole & leaf curl

I had read some where that shot hole could also be due to fungus and given the wet weather we have here, I thought
that would be the most likely cause.

I can give copper a shot at leaf fall since it is too late now.

I did not see any insects on the curled pear leaves. For now,
I have just removed & disposed the ones that looked real bad.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Fruit & Orchards Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here