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Megh Singh, Mayank Malik, Analiza H.M. Ramirez, and Amit J. Jhala

management in citrus groves greatly varies depending on the type of crop, producer, location, and availability of resources. Citrus growers use a combination of mechanical, chemical, and cultural methods to control weeds. Among various methods of weed control

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Charles L. Webber III, Merritt J. Taylor, and James W. Shrefler

Producers growing squash for markets who desire the use of more naturally occurring herbicides need alternatives that effectively provide season-long weed control. Although corn gluten meal has shown promise as an early-season preemergent herbicide

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Charles L. Webber III, Merritt J. Taylor, and James W. Shrefler

the use of more naturally occurring herbicides need alternatives that effectively provide season-long weed control. Although corn gluten meal has shown promise as an early season preemergent herbicide in vegetable production, any uncontrolled weeds can

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Wiley Carroll Johnson III and Jerry W. Davis

Weed management in organic production systems is an integration of cultural, mechanical, and chemical weed control components uniquely tailored for each location and crop. Chemical weed control in certified organic cropping systems allows for use of

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James E. Altland, Charles H. Gilliam, and Glenn Wehtje

Herbicide use is an important component of weed management in field nursery crops. No single herbicide controls all weed species. Oxyfluorfen, simazine, and isoxaben are preemergence herbicides effective against broadleaf weeds. Oryzalin, pendimethalin, and prodiamine are effective in preemergence control of grasses and some small-seeded broadleaf weeds. Metolachlor is the only herbicide currently labeled for nursery crops that is effective in preemergence nutsedge (Cyperus) control. Fluazifop-butyl, sethoxydim, and clethodim are selective postemergence herbicides used for grass control. Glyphosate, paraquat, and glufosinate are nonselective postemergence herbicides used in directed spray applications for broad-spectrum weed control. Bentazon, halosulfuron, and imazaquin are effective postemergence nutsedge herbicides. These herbicides are discussed with respect to their chemical class, mode of action, labeled rates, and current research addressing their effectiveness in nursery crops.

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Sanjeev K. Bangarwa, Jason K. Norsworthy, and Edward E. Gbur

, has been widely used under polyethylene mulch for effective weed control in vegetable production, including bell pepper ( Duniway, 2002 ). However, because of its ozone-depleting potential, methyl bromide is being phased out from the U.S. agricultural

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Gerald M. Henry, Jared A. Hoyle, Leslie L. Beck, Tyler Cooper, Thayne Montague, and Cynthia McKenney

weed control practices are critical in olive orchards to reduce competition for valuable inputs such as water, nutrients, and sunlight, as well as to reduce the likelihood of negative impacts from pests (insects, nematodes, and pathogens) residing on

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Dennis C. Odero and Alan L. Wright

). Growers in the EAA typically rely on preemergence application of S -metolachlor to provide early-season weed control followed by postemergence application of bentazon for broadleaf weed control in combination with sethoxydim for grass control. However

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Dennis C. Odero, Jose V. Fernandez, and Nikol Havranek

/m 2 over a 30-d growing season. In the organic soils of the EAA, negative effects of weed interference on radish are due to lack of registered effective preemergence or postemergence herbicides for broad-spectrum weed control. Many soil

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S. Christopher Marble, Andrew K. Koeser, Gitta Hasing, Drew McClean, and Annette Chandler

Many studies have analyzed the benefits and disadvantages of common weed control techniques in urban or suburban landscape settings as they pertain to weed control. In most cases, homeowners or landscapers will use mulch (organic or inorganic