Earlyploid, developed at the UF/IFAS North Florida Research and Education Center, is a large-seeded, upright, early forage-producing and early maturing annual ryegrass. Regional variety trials show it is the earliest tetraploid ryegrass cultivar available commercially. It offers excellent disease resistance and sufficient cold tolerance to be grown successfully in the southern annual ryegrass region of the U.S. This 1-page fact sheet was written by A.R. Blount, G.M. Prine, C.L. Mackowiak, K.E. Kenworthy, J.C. Jones, and P.E. Reith, and published by the UF Department of Agronomy, October 2011.
http://edis.ifas.ufl.edu/ag364
Tag: Agronomy Department
“Ocala”: A New Diploid Annual Ryegrass for the Southern U.S. (SSAGR356/AG365)
Ocala, a new UF annual ryegrass, has excellent disease resistance and sufficient cold tolerance to be grown successfully in the southern annual ryegrass region of the U.S. It is a well-adapted, diploid annual ryegrass population. Parentage includes several advanced experimental annual ryegrass populations for Florida and Nebraska. This 1-page fact sheet was written by A.R. Blount, G.M. Prine, K.E. Kenworthy, P. Mislevy, J.C. Jones, and P.E. Reith, and published by the UF Department of Agronomy, October 2011.
http://edis.ifas.ufl.edu/ag365
Prickly Pear Cactus Control in Pastures (SSAGR354/AG363)
Prickly pear cactus is not a problem in every pasture in Florida, but where it is found, it is often the biggest and most difficult issue to manage: mowing prickly pear fragments the pads and dramatically increases the infestation, and although prickly pear doesn’t form dense canopies and doesn’t outcompete desirable forage grasses, its impact on grazing can be just as severe because of its barbed quills. This 2-page fact sheet was written by J. A. Ferrell and B. A. Sellers, and published by the UF Department of Agronomy, September 2011.
http://edis.ifas.ufl.edu/ag363
Flat-top Goldenrod (Euthamia caroliniana): Biology and Control in Pastures (SS-AGR-353/AG361)
This perennial plant, which flowers September – November with flat-topped inflorescence consisting of many yellow ray and disk flowers, is a common weed found in pastures with low levels of management. Learn more in this 3-page fact sheet was written by B. A. Sellers and J. A. Ferrell and published by the UF Department of Agronomy, September 2011.
http://edis.ifas.ufl.edu/ag361
Dogfennel (Eupatorium capillifolium): Biology and Control (SSAGR224/AG233)
Dogfennel is currently the number one most commonly occurring pasture weed in Florida. Many people think it is only unsightly, but it causes significant bahiagrass yield loss and can cause dehydration when ingested by cattle. This 3-page fact sheet was written by B. A. Sellers and J. A. Ferrell and published by the UF Department of Agronomy, September 2011.
http://edis.ifas.ufl.edu/ag233
Rainfast Time for Postemergence Herbicides Commonly Used in the Everglades Agricultural Area: Quick Reference Sheet (SSAGR351/AG359)
If rainfall occurs soon after herbicide application, it can affect the effectiveness of postemergence herbicides. And they each differ in their time requirements for rain-free periods following application. This 2-page fact sheet shows rainfast time for postemergence herbicides commonly used in the Everglades Agricultural Area for sugarcane and vegetable production. Written by D.C. Odero and published by the UF Department of Agronomy, August 2011. (Photo by Eric Zamora UF/IFAS)
http://edis.ifas.ufl.edu/ag359
Constructing Weighted Trailing Hoses for Submersed Aquatic Herbicide Applications (SSAGR352/AG360)
Why treat the upper half of the water column when the weeds are only present in the lower half? This 4-page fact sheet describes the benefits of using the “bottom acre-foot method” of applying herbicides with weighted trailing hoses and details the construction of the weighted trailing hose system used by the University of Florida Center for Aquatic and Invasive Plants.
Written by William T. Haller, Lyn A. Gettys, and Margaret S. Glenn, and published by the UF Department of Agronomy, August 2011.
http://edis.ifas.ufl.edu/ag360
Rainfastness of Pesticides (PI238)
Generally, it is best to avoid pesticide application when rainfall is likely; however, weather can be unpredictable, so it is best to choose a product with good rainfast characteristics. Learn more in this 3-page fact sheet written by Bonnie Wells and F.M. Fishel, and published by the UF Department of Agronomy, August 2011.
http://edis.ifas.ufl.edu/pi238
The Role of the Codex Alimentarius in Determining International Standards for Pesticides and Food (PI237)
People have the right to expect their food to be safe, of good quality, and suitable for consumption, and national governments must ensure that food imported from other countries is safe. But laws and regulations to minimize threats can create barriers to international food trade. The Codex Alimentarius aims to facilitate international trade by promoting definitions and requirements for foods. This 3-page fact sheet was written by F.M. Fishel, and published by the UF Department of Agronomy, August 2011. (image from usda.gov)
http://edis.ifas.ufl.edu/pi237
Fall Panicum: Biology and Control in Sugarcane (SSAGR132/SC079)
Fall panicum (Panicum dichotomiflorum) is a native grass that can be found throughout the United States in agronomic and horticultural crops, turfgrass, nurseries, landscapes, and noncrop areas. It grows well in warm wet conditions and is one of the most common grass weeds found in Florida sugarcane. This 3-page fact sheet provides sugarcane growers with guidance on its identification and control. Written by D.C. Odero, Brent Sellers, Les Baucum, and Curtis Rainbolt, and published by the UF Department of Agronomy, May 2011.
http://edis.ifas.ufl.edu/sc079
Calibrating Equipment for Aquatic Herbicide Application (PI236)
Calibration is the process of measuring and adjusting equipment performance. It is not difficult, but it does require some math. This 12-page fact sheet provides standard formulas and conversion factors incorporated into practical examples to help with calibration. Written by F.M. Fishel and published by the UF Department of Agronomy, July 2011.
http://edis.ifas.ufl.edu/pi236
Rhizoma Perennial Peanut (SSAGR349/AG358)
Rhizoma perennial peanut is a forage legume available to Florida producers that combines high nutritive value (comparable to alfalfa) with persistence under a wide range of management conditions. It can be used for hay production, silage, or grazing. Find out more in this 4-page fact sheet was written by M.J. Williams, Y.C. Newman, and Ann Blount, and published by the UF Department of Agronomy, June 2011.
http://edis.ifas.ufl.edu/ag358
Forage Planting and Establishment Methods (SSAGR161/AG107)
Establishment of an excellent, uniform stand of forage in a short period of time is important. The producer needs to do everything possible to ensure successful establishment. Several requirements that must be met are briefly discussed, along with various planting methods. This revised 8-page fact sheet was written by Y.C. Newman, J. Vendramini, C.G. Chambliss, M.B. Adjei, and published by the UF Department of Agronomy, April 2011.
http://edis.ifas.ufl.edu/ag107
Florida Forage Handbook: Preface (SSAGR98/AG171)
This revised 2-page fact sheet introduces the new edition of the Florida Forage Handbook which has become the go-to-guide for every Florida forage enthusiast, new or seasoned, and now contains updated and expanded information most relevant to today’s livestock producer and forage manager. Written by Y.C. Newman and C.G. Chambliss, and published by the UF Department of Agronomy, April 2011.
http://edis.ifas.ufl.edu/ag171
IRAC’s Insecticide Mode of Action Classification (PI83/PI121)
This 6-page fact sheet explains the rationale behind the Insecticide Resistance Action Committee’s (IRAC) insecticide and acaricide mode of action classification and provides a listing of those insecticide common names with their groupings and primary modes of action for insecticides currently registered in Florida. Written by Frederick M. Fishel and published by the UF Department of Agronomy, April 2011.
http://edis.ifas.ufl.edu/pi121
Agricultural Pesticide Use in Florida: A Summary, 2007-2009 (PI235)
Commercial farms in Florida span over nine million acres and earn annual profits of more than $7.5 billion. High temperatures and heavy rainfall create heavy pest pressure that leads the majority of Florida farmers to rely upon pesticides for high-yielding, cost-effective crop production. This 4-page fact sheet lists top ten pesticides and the crops associated with this use, and also specifies the most common fungicides, insecticides, herbicides, and other pesticides.Written by Bonnie Wells and F.M. Fishel, and published by the UF Department of Agronomy, June 2011.
http://edis.ifas.ufl.edu/pi235
Weeds and Epidemiology of Bacterial Leaf Spot of Lettuce in the Everglades Agricultural Area (SSAGR347/AG357)
This 2-page fact sheet briefly covers the history, symptoms, and epidemiology of this disease of lettuce. Written by D.C. Odero, and published by the UF Department of Agronomy, May 2011.
http://edis.ifas.ufl.edu/ag357
Weed Control for Winter Faba Bean Cover Crop in South Florida (SSAGR345/AG355)
Faba bean is an important leguminous winter crop in warm temperate and subtropical areas that has been cultivated for more than 10,000 years as a source of protein in human and livestock diets. It is also grown to enhance yields of other crops. Faba bean provides nitrogen in agricultural systems through the unique process of biological fixation of atmospheric nitrogen by symbiosis with Rhizobium bacteria. This substantially reduces the need for nitrogen fertilizers, which contribute to both carbon dioxide and nitrous oxide emissions. This 2-page fact sheet written by D.C. Odero provides weed control recommendations. Published by the UF Department of Agronomy, April 2011.
http://edis.ifas.ufl.edu/ag355
Saw Palmetto Control: Individual Plant and Broadcast Application (SSAGR341/AG351)
Saw palmetto is a shrubby palm species native to Florida and common throughout the state. Despite its beneficial uses, saw palmetto is a serious weed problem in pastures, forests, and non-cropland areas, and control of this common native plant is often necessary. This 4-page fact sheet provides mechanical and chemical control recommendations. Written by Brandon Fast, Jason Ferrell, and Brent Sellers, and published by the UF Department of Agronomy, March 2011.
http://edis.ifas.ufl.edu/ag351
Biology and Control of Common Ragweed Along Ditch and Canal Banks (SSAGR346/AG356)
Common ragweed is a successful pioneer species widely distributed throughout the continental United States. In cultivated fields it will compete with crops for light, moisture, nutrients, and space and will result in significant yield losses. Additionally, allergenic airborne pollen from common ragweed is a primary cause of hay fever and thus a public health concern. This 3-page fact sheet describes the life cycle of the plant and provides management recommendations. Written by D.C. Odero, B. Sellers, and J. Ferrell, and published by the UF Department of Agronomy, April 2011.
http://edis.ifas.ufl.edu/ag356