View unanswered posts | View active topics It is currently Thu Feb 22, 2018 9:31 am

This topic is locked, you cannot edit posts or make further replies.  [ 3 posts ] 
 Disinfecting Pruning Tools 
Author Message

Joined: Sat Jan 28, 2006 12:50 pm
Posts: 5
Post Disinfecting Pruning Tools
I often read about how we should disinfect our pruing tools but rarely see any information about what to use and how effective a particular product is. Is there anything that is effective for all type of pathogens? How long and how often would it need to be applied? I'm wondering if there is anything that is effective against virus and fungi.

Sat Jan 28, 2006 1:11 pm

Joined: Wed Dec 21, 2005 9:12 am
Posts: 21
Location: Western Washington
Visit here for information on disinfecting pruning tools

Terry M.
Sunset Zone 4, USDA Zone Zone 8a

Sun Jan 29, 2006 8:41 am
Site Admin

Joined: Tue Apr 27, 2004 1:58 pm
Posts: 228
Location: Oregon
I'm posting this for Viron due to a technical problem.



Searching "Disinfecting Pruning a," I found it suggested we 'disinfect' after every cut! Can you imagine the process of, say, a thousands cuts per tree - with a dozen trees to go? Ridiculous... I, if I remember to, will disinfect between trees of the same variety. Most of the time I'll bounce between a fig, an apple, a persimmon, a pear, a plum, an apple, a fig ... I assume the offending organism will be wiped off 'between trees' and not passed on to 'another apple' for instance.

I also find within the research that viruses can be spread by roots; and, bacteria can be spread by rain and insects...

I see it's advised we disinfect after cutting out an obviously diseased segment or branch of a tree; this makes sense to me.

Here are some solutions recommended by Marianne C. Ophardt, Washington State University Cooperative Extension Area Extension Agent - @ ... -prune.htm

Dip the blades of your tools in a bleach solution (one part bleach to nine parts water) for at least 15 seconds.
Other possible disinfectants include Lysol (regular Lysol containing o-phenyl-phenol and
o-benzyl-p-chlorophenol) diluted to 20 percent; denatured alcohol (available as shellac thinner); Listerine at full strength; rubbing alcohol of 70 percent, 91 percent, or 99 percent concentration, and Pine Sol (19.9 percent pine oil).
If viruses are the suspected disease, clean your tools by washing them with detergent to physically remove the virus and inactivate virus that may remain on the blades.
Be aware that the various disinfectants can be corrosive to the blades of your pruning tools, especially bleach and Pine Sol. Make sure to wash off all of the chemical used after the final disinfecting, allow the equipment to dry thoroughly, and then coat the metal parts with light oil or a silicone based spray.

A grafting buddy of mine uses aerosol "Lysol" between trees. He claims his large can lasts for years, as he sprays a dab on his hand pruners and grafting knife. I used Alcohol, but found it dissolves a plastic spray bottle's innards! So I'll remove the cap and dab some on a rag that I use to wipe my pruners and knife between trees. If I'm grafting a half dozen of the same variety (scions) of trees and rootstock - no need.

It looks like the experts all have their own opinions :? and I'm no expert, but I try!


Sun Jan 29, 2006 2:57 pm
Profile WWW
Display posts from previous:  Sort by  
This topic is locked, you cannot edit posts or make further replies.   [ 3 posts ] 

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: