North American Fruit Explorers mailing list at ibiblio

["Dennis Norton" <dmnorton@royaloakfarmorchard.com>]

Lee,

 

My suggestion would be to go back to Imidan because it sounds like the PC have built up a resistance to the Surround.  Another option would be Avaunt or Assail.  We rotate Assail and Imidan each year to avoid resistance buildup and use Avaunt in "hotspots" of PC if necessary.  You would need to check in your state's spray guide to see if these are approved for your state as they are in Illinois.  Hope this helps. 

 

Dennis Norton
Royal Oak Farm Orchard
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com

----- Original Message -----

From: lee reich

To: North American Fruit Explorers

Sent: Monday, May 22, 2006 9:28 AM

Subject: Re: [NAFEX] [organictreefruits] Fw: Plum Curculio

The original formulation of Surround had a separate adjuvant to mix with the spray but the newer ones have the adjuvant (my guess is that it's linseed oil) mixed in with the clay. Do you think that the X-70 still improves performance?

I have used Surround on my apples for about five years now, using a Stihl backpack airblast sprayer. Results have been very poor. I do still get curculio damage and my crops are very, very low. I spray right after petal fall once a week or so then move up to 2 week intervals unless there's an inch of rain, in which case I reapply. I usually mix elemental sulfur in with the spray. I'm not sure exactly why my crop is so poor but when I used to used two sprays of Imidan followed by maggot traps I always got good yields.

Any suggestions/insights appreciated.

Lee Reich, PhD

www.leereich.com

Books by Lee Reich:

Uncommon Fruits for Every Garden

A Northeast Gardener's Year

The Pruning Book

Weedless Gardening

On May 22, 2006, at 7:41 AM, Michelle Horner wrote:

<caldwell@lightlink.com>

Subject: Re: [organictreefruits] Fw: Plum Curculio

Also, I have found that adding 3 oz/100 of X-70, an approved adjuvant,

helps Surround cover the trees well. This is especially true if lime

sulfur is added to the spray, which I find makes Surround slide right off

the leaves.

Best wishes,

Brian

Dear Brian,

I am not familiar with X-70 and find nothing in search. I'll do most

anything to improve my Surround coverage. I do hand to hand

combat with plum curculio yearly.

is it a spreader/sticker??

Michelle Horner zone 4/5 SE Wis

Dear Nafex,

No one from organic fruit tree replied to my quiry of what is X-70. Do you

guys know?? And where do I get it if I need it??

Thanks Michelle Horner zone 4/5

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