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   Weed Control
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Louisiana's Suggested Chemical Weed Control Guide
2008 weed guide cover

This guide includes helpful information on herbicides and weed control with detailed suggestions for aquatics, commercial nursery stock, field crops, forestry, fruit crops, home gardens, lawns and many other Louisiana crops. It includes information on different types of herbicide registrations, as well as information on herbicide labels and restricted uses. Also included are sprayer calibration techniques, suggestions for reducing herbicide drift and a guide to proper spray tip selection.

New Options for Managing Weeds in Clearfield Rice
control plot,

The development of Clearfield rice, which is tolerant to imidazolinone herbicides, is the most important advance in rice weed management in recent years.

Grasp: A New Herbicide for Managing Weeds in Rice
chart

LSU AgCenter weed scientists began working with Grasp in 2003, but it wasn’t until 2004 that in-depth research could be conducted because of limited product availability.

Water Starwort (Callitriche heterophylla)
water starwort leaves

Photographs of water starwort (Callitriche heterophylla).

Mannagrass (Glyceria declinata)
Mannagrass spikelets
Photographs of mannagrass (Glyeria declinata) and some of its parts.
Swamp Dayflower (Murdannia keisak)
photographs of swamp dayflower plants
Photographs of Swamp Dayflower (Murdannia keisak syn Aneilema keisak).
Red Sprangletop (Leptochloa filiformis)
single panicle of red sprangletop
Photographs of red sprangletop (Leptochloa filiformis)
Amazon Sprangletop (Leptochloa panicoides)
single plant of Amazon Sprangletop
Photographs of Amazon Sprangletop (Leptochloa panicoides)
Ducksalad (Heteranthera limosa)
Ducksalad in flower
photograph of ducksalad in flower and compared to Roundleaf Mud Plantain
Roundleaf Mudplantain (Heteranthera reniformis)
photograph of single roundleaf mudplantain plant
Photographs of roundleaf mudplantain (Heteranthera reniformis) and in comparison to ducksalad (H. limosa)
Hedge Hyssop (Gratiola sp.)
Hedge Hyssop in a rice field
Photographs of Hedge Hyssop plants.
Alligatorweed (Alternanthera philoxeroides)
mat of alligator weed
Photographs of alligatorweed and its parts.
Jointvetch (Aeschynomene sp.)
Jointvetch seedlings
Photographs of Jointvetch (Aeschynomene sp.) and its parts.
Texasweed (Caperonia palustris)
Texasweed flower
Photographs of Texasweed a.k.a. Mexicanweed, Birdeye