Malathion Use on Christmas Tree Plantations in California

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Date: September 27, 2006

To: Teung Chin

From: Rick Melnicoe

Subject: Malathion - Christmas Tree Plantations (Rates and REI)

Teung,

The proposed label rates, REI and number of applications per year for Christmas trees will not be a problem in California.

Rick

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From: Teung.F.Chin@aphis.usda.gov [mailto:Teung.F.Chin@aphis.usda.gov]
Sent: Wednesday, September 27, 2006 3:04 PM
To: jess@msu.edu; rsmelnicoe@ucdavis.edu; Steve Toth; ckk3@cornell.edu; hastings@aesop.rutgers.edu; jea@psu.edu
Cc: olsenl@msu.edu; jmthomas@tricity.wsu.edu; llherbst@ucdavis.edu; jim@sripmc.org; Allen.Jennings@ars.usda.gov; antonell@wsu.edu; jill_sidebottom@ncsu.edu; jill_sidebottom@ncsu.edu; odonnell@msue.msu.edu; liellling@msue.msu.edu; myers@msue.msu.edu; ledebuhr@msue.msu.edu
Subject: Malathion - Christmas Tree Plantations (Rates and REI)

September 27, 2006

Dear Colleagues:

EPA is finalizing its label decisions for malathion.  

Please let me know if the following EPA decisions will be acceptable for Christmas tree growers:

(1)  Non-ULV 3.2 lb ai/acre  maximum single rate , two applications maximum per year; 12 hour REI
(2)  ULV  0.9375  lb ai/acre  maximum single rate , two applications maximum per year; 12 hour REI

I will need your feedback within in two weeks if at all possible (Wed. October 11).  Thank you!

Teung Chin
________________________________

Oregon Crop Profile 1999
http://www.ipmcenters.org/CropProfiles/docs/orwachristmastrees.html

malathion  1.0-3.0 pt/acre  35 ACRES 1 % ct
Douglas-fir conifer aphids (Cinara spp.) ; True Firs: Balsam Twig Aphid

Arthur Antonelli
Washington State University
Puyallup Research and Extension Center
7612 E. Pioneer Way
Puyallup, WA 98371-4998
Phone (253) 445-4545
Fax (253) 445-4569
Internet: antonell@wsu.edu
________________________________

Washington State Crop Profile Crop Profile 1999
http://www.ipmcenters.org/CropProfiles/docs/orwachristmastrees.html

no use reported (1999)

Entomology
Arthur Antonelli
Washington State University
Puyallup Research and Extension Center
7612 E. Pioneer Way
Puyallup, WA 98371-4998
Phone (253) 445-4545
Fax (253) 445-4569
Internet: antonell@wsu.edu
________________________________

Pennsylvania 2004 Crop Profile
http://www.ipmcenters.org/CropProfiles/docs/PAchristmastrees.html

No malathion use reported
________________________________

North Carolina 2003  (Mountain Region) Crop Profile
http://www.ipmcenters.org/CropProfiles/docs/NCchristmastrees.html

Malathion (malathion). 1%  percent or less of Christmas tree acreage in 2000 in western North Carolina mainly for the control of the balsam woolly adelgid.

Jill R. Sidebottom
Mountain Conifer IPM Extension Specialist
Mountain Horticultural Research and Extension Center
North Carolina State University, 455 Research Drive, Fletcher, NC 28732-9244
E-mail: jill_sidebottom@ncsu.edu
Telephone: (828) 684-3562; Fax: (828) 684-8715.
________________________________

North Carolina (Piedmont & Coastal Plains) 1999 Crop Profile
http://www.ipmcenters.org/CropProfiles/docs/ncchristmastrees-piedmontcoastalplain.html

Pales weevils  malathion 2% CT

Jill R. Sidebottom
E-mail: jill_sidebottom@ncsu.edu
Telephone: (828) 684-3562; Fax: (828) 684-8715
________________________________

North Carolina, West Virginia, Tennessee 2003 PMPSP
http://www.ipmcenters.org/pmsp/pdf/NCTNVAChristmasTree.pdf

1% CT or less for balsam twig aphis and spruce spider mite in Western NC
Also controls bagworms, aphids, eastern spruce gall adelgid, pine bark adelgid, pine root collar weevil, white pine wevil, Pales weevil, red headed pine sawfly, black headed pine sawfly

Jill Sidebottom
________________________________

Michigan PMSP 2001
http://www.ipmcenters.org/pmsp/pdf/MIChristmasTree.pdf

5% CT blue spruce
pine tortoise scale, aphids

Richard Ledebuhr  ledebuhr@msue.msu.edu
Norm Myers myers@msue.msu.edu
Melvin Koelling  liellling@msue.msu.edu
Jill O'Donnell odonnell@msue.msu.edu
Deborah McCullough mccullod@msue.msu.edu

Please do not hesitate to contact me if you have any questions or comments.

Best regards,

Teung

Teung F. Chin, Ph.D.
Biological Scientist
Office of Pest Management Policy
Agricultural Research Service
United States Department of Agriculture

LOCATED AT:

USDA Animal & Plant Health Inspection Service
4700 River Road, Unit 149   (Room 3D-06.8)
Riverdale, MD  20737-1237
Phone  (301) 734-8943
Fax  (301) 734-5992
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