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TITLE
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Options For Controlling Florida Beggarweed in Peanuts
AUTHOR
Dr. Eric P. Prostko
Extension Weed Specialist
University of Georgia
Tifton, GA
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TABLE OF CONTENTS
Options For Controlling Florida Beggarweed in Peanuts
Florida Beggarweed Picture
Top 10 Most Troublesome Weeds in Georgia Peanuts
Florida Beggarweed Identification
Florida Beggarweed History
Florida Beggarweed Biology
Florida Beggarweed Competition in Peanuts
Weed Competition in Peanuts: Critical Periods (weeks)
Florida Beggarweed Control: Current Options
Florida Beggarweed Control: The Future
Spartan 4F
Strongarm 84WDG
Valor 50WDG
Florida Beggarweed Control
Crop Rotation Restrictions (months)
Summary of New Products
SLIDE CONTENTS
Options For Controlling Florida Beggarweed in Peanuts Dr. Eric P. Prostko Extension Weed Specialist University of Georgia Tifton
PPT Slide
Top 10 Most Troublesome Weeds in Georgia Peanuts Fla. Beggarweed nutsedge tropic croton sicklepod Texas panicum bristly starbur morningglories wild poinsettia citronmelon pigweeds Webster and MacDonald, 1999
Florida Beggarweed Identification seed seedling flower
Florida BeggarweedHistory a.k.a. - Beggar’s-lice, beggarstick, Cherokee clover, cockshead, Florida clover, stick-tight, West Indian honeysuckle first collected in Mexico and Jamaica (1700’s) prior to 1950’s was a popular forage and cover crop
Florida BeggarweedBiology Desmodium tortuosum warm-season annual legume growth up to 6+’ germination (68-1110F) emergence from 3” 12,500 seeds/plant
Florida Beggarweed Competition in Peanuts 1 Florida beggarweed plant per m2 can reduced peanuts yields 14-27 lbs/A !!!! Hauser et al. 1982
Weed Competition in Peanuts Critical Periods (weeks)
Florida Beggarweed Control Current Options Zorial - PRE Starfire + Storm or Basagran - AC Tough + 2,4-DB - EPOST (3”) Cadre - EPOST (2”) Classic - LPOST (10”) new products
Florida Beggarweed Control The Future Spartan Strongarm Valor
Spartan 4F FMC introduced in 1991 sulfentrazone triazolinone family PPO oxidase inhibitor PPI or PRE up to 8 ozs/A (4F)
Strongarm 84WDG Dow AgroSciences introduced in 1995 diclosulam sulfonanilide family ALS/AHAS inhibitor PPI or PRE 0.45 oz/A
Valor 50WDG Valent introduced in 1989 flumioxazin N-phenylphthalimide derivative PPO oxidase inhibitor PRE 2-3 ozs/A
Florida Beggarweed Control
Crop Rotation Restrictions(months)
Summary of New Products crop safety concerns new products will help control beggarweed rotational concerns When will they be labeled??? How much will they cost??