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A publication for Christmas tree growers:

An IPM Pocket Guide for Weed Identification in Christmas Trees -- New 2007
This plastic-coated scouting guide with its 3.75" X 6.0" pages fits in your pocket for easy use in the field. With each weed, the life cycle, leaves, stems, flowers and fruit, and reproduction are presented with color pictures and a description to help you find the right species no matter what time of the season it is. (order information or view sample pages)

The following weeds are included in the guide:

Annual sowthistle
Apple of Peru
Atriplex
Barnyardgrass
Bittersweet nightshade
Blackseed plantain
Bladder campion
Brambles
Broadleaf dock
Broadleaf plantain
Buckhorn plantain
Bull thistle
Canada goldenrod
Canada thistle
Common blue violet
Common cottonwood
Common eveningprimrose
Common lambsquarters
Common milkweed
Common ragweed
Common St. Johnswort
Common yarrow
Curly dock
Cutleaf eveningprimrose
Dandelion
Dwarf sumac
Eastern black nightshade
Entireleaf morningglory
Fall panicum
Field bindweed
Field horsetail
Field pennycress
Field violet
Giant foxtail
Giant knotweed
Giant ragweed
Green foxtail
Hedge bindweed
Hemp dogbane
Hoary alyssum
Horsenettle
Horseweed
Ivyleaf morningglory
Japanese knotweed
Jimsonweed
Johnsongrass
Ladysthumb
Large crabgrass
MarestailMile-a-minute
Nightflowering catchfly
Pale smartweed
Pennsylvania smartweed
Perennial sowthistle
Pitted morningglory
Poison hemlock
Poison ivy

Pokeweed
Powell amaranth
Prickly lettuce
Prostrate pigweed
Puncturevine
Quackgrass
Red clover
Redroot pigweed
Scouringrush
Shepherd’s purse
Smooth crabgrass
Smooth groundcherry
Smooth pigweed
Smooth sumac
Spiny sowthistle
Spotted knapweed
Spreading dogbane
Staghorn sumac
Stinging nettle
Stinkgrass
common milkweed
Young common milkweed plant.
Swamp smartweed
Tall morningglory
Tartary buckwheat
Tree-of-heaven
Tumble pigweed
Velvetleaf
Vetches
Virginia creeper
Western ragweed
White campion
White clover
Wild buckwheat
Wild carrot
Wild grapes
Wild mustard
Wild proso millet
Witchgrass
Yellow foxtail
Yellow nutsedge
Yellow rocket
 

Other guides for scouting
View information on similar guides for stone fruit, blueberries, grapes, woody landscape plants, weeds in the nursery and landscape, herbaceous perennials and natural enemies in crops and landscapes.

More information. The 143-page guide serves as a field supplement to more comprehensive references like the Christmas Tree Pest Manual by D.G. McCullough, S.A. Katovich, M.E. Ostry and J. Cummings-Carlson, Common Weed Seedlings of the North Central States by A.J. Chomas, J.J. Kells and J.B. Carey, and Weeds of the Northeast by R.H. Uva, J.C. Neal and J.M. DiTomaso.

Compiled and edited by: Steven A. Gower, Diagnostic Services, Michigan State University; and Robert J. Richardson, North Carolina State University.
Graphic designer: Rebecca Lamb, MSU IPM Program

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The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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Updated: 05/23/07