Slide Presentation
TITLE
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Callisto Performance in Georgia - 2001
AUTHOR
Dr. Eric P. Prostko
Extension Weed Specialist
University of Georgia
Tifton, GA
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TABLE OF CONTENTS
Callisto Performance in Georgia - 2001
Corn Production in Georgia
Top 10 Most Troublesome Weeds in Georgia Corn
2001 Callisto Trials in Georgia
RESULTS: Test 1, Tifton
Sicklepod Control with Callisto: (3 oz/A) Applied POST - 8 DAT
Texas Panicum Control with Callisto: (3 oz/A) Applied POST
Corn Yield with Callisto (3 oz/A) Applied POST
RESULTS: Test 2, Attapulgus
Texas Panicum Control with Callisto (6 oz/A) Applied PRE
Corn Yield with Callisto (6 oz/A) Applied PRE
Texas Panicum Control with Callisto: (3 oz/A) Applied POST
Corn Yield with Callisto (3 oz/A) Applied POST
Callisto Summary - 2001
University of Georgia, Extension Weed Science
SLIDE CONTENTS
Callisto Performance in Georgia - 2001 Eric P. Prostko Extension Weed Specialist University of Georgia
Corn Production in Georgia 345,000 A harvested 57% irrigated 43% dryland 1993-2000 Avg yields * 137 Bu/A - irrigated * 64 Bu/A - dryland * 14 tons/A - silage Source: GASS
Top 10 Most Troublesome Weeds in Georgia Corn Texas panicum sicklepod morningglories pigweeds nutsedges cocklebur beggarweed crabgrass johnsongrass PA smartweed Webster and MacDonald, 1999
2001 Callisto Trials in Georgia 2 locations small plot techniques crop injury weed efficacy corn yields
RESULTSTest 1Tifton
Sicklepod Control with Callisto (3 oz/A) Applied POST - 8 DAT Planted: April 9 (Pioneer 3163) Applied: April 23 CASOB = 0.5” b a P = 0.05
Texas Panicum Control with Callisto (3 oz/A) Applied POST Planted: April 9 (Pioneer 3163) Applied: April 23 PANTE = 0.5” ab ab a b
Corn Yield with Callisto (3 oz/A) Applied POST Planted: April 9 (Pioneer 3163) Applied: April 23 Harvested: August 23 P = 0.1011
RESULTSTest 2Attapulgus
Texas Panicum Control with Callisto (6 oz/A) Applied PRE Planted: April 2 (DK 662RR) PRE: April 2 (LSD 0.05 = 7) (LSD 0.05 = 10) (LSD 0.05 = 10) (LSD 0.05 = 21)
Corn Yield with Callisto (6 oz/A) Applied PRE Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 Harvested: August 27 LSD 0.10 = 29
Texas Panicum Control with Callisto(3 oz/A) Applied POST Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 PANTE: 1-3” (LSD 0.05 = 10) (LSD 0.05 = 10) (LSD 0.05 = 21)
Corn Yield with Callisto (3 oz/A) Applied POST Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 Harvested: August 27 LSD 0.10 = 29
Callisto Summary - 2001 no significant crop injury was observed Callisto did not provide acceptable control of Texas panicum and sicklepod in Georgia.
University of Georgia Extension Weed Science (gaweed.com)