white powdery mildew

Reply

  #1  
Old 11-21-04, 11:43 AM
Bob2
Visiting Guest
Posts: n/a
white powdery mildew

Early last summer I planted some apple seeds.Several germinated and are about 12" tall. The problem is powdery mildew. I sprayed with a polysul dormant as per directions and it killed most of the leaves. Does anyone have any direct experience treating white powdery mildew? I have heard of horticultural oil,anyone tried this?
Bob2
 
Sponsored Links
  #2  
Old 11-21-04, 12:16 PM
majakdragon's Avatar
Member
Join Date: Jul 2003
Location: N.E. Arkansas
Posts: 7,827
I have never had experience with powdery mildew on fruit trees however I have had it on roses. You must remove any affected leaves both on the tree and on the ground. These leaves MUST be destroyed. If you use a prunner to cut the leaves from the tree, they need to be disinfected after each cut. Disinfect with bleach solution. Here is a link on powdery mildew.

http://plantclinic.cornell.edu/FactS...ry/powdery.htm

Hope this helps.
Good luck and post back
 
  #3  
Old 11-21-04, 03:44 PM
Bob2
Visiting Guest
Posts: n/a
Thankyou majakdragon for your effort.
 
  #4  
Old 11-21-04, 08:10 PM
marturo's Avatar
Member
Join Date: Jun 2001
Posts: 1,448
Smile 3 preventions

Hi Bob

Everyone knows of the dormant oil spray followed by the Lime/ Sulphur spray for early Spring clean up & prevention. Don't stop using them, however I found 2 more helpers that target fungi & under bark pests, I am impressed with both.

Having 4 wet years now, I have been working with 2 other sprays that show great promise. Neem oil spray highly antifungal & the new colloidal clay ( Surround ).

The full story, well not so full yet as we out in the fields, are finding new uses for Surround plant enhancement spray every season. I have a link in the (useful garden links) sticky on surround. Surround leaves a thin white coat on leaves, & bark keeping the plant cooler longer on hot days. This allows the plant to continue photosynthesis longer on hot summer days a difference you can see. New transplants sprayed with surround don't wilt & root much quicker in the field.

We are 100 percent Organic & don't use any anti fungal Chems.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'