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Callisto Performance in Georgia - 2001

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.

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Callisto Performance in Georgia - 2001

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  1. Callisto Performance in Georgia - 2001 Eric P. Prostko Extension Weed Specialist University of Georgia

  2. 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

  3. Texas panicum sicklepod morningglories pigweeds nutsedges cocklebur beggarweed crabgrass johnsongrass PA smartweed Top 10 Most Troublesome Weeds in Georgia Corn Webster and MacDonald, 1999

  4. 2001 Callisto Trials in Georgia • 2 locations • small plot techniques • crop injury • weed efficacy • corn yields

  5. RESULTSTest 1Tifton

  6. Sicklepod Control with Callisto (3 oz/A) Applied POST - 8 DAT a P = 0.05 b Planted: April 9 (Pioneer 3163) Applied: April 23 CASOB = 0.5”

  7. Texas Panicum Control with Callisto (3 oz/A) Applied POST a ab ab b Planted: April 9 (Pioneer 3163) Applied: April 23 PANTE = 0.5”

  8. Corn Yield with Callisto (3 oz/A) Applied POST P = 0.1011 Planted: April 9 (Pioneer 3163) Applied: April 23 Harvested: August 23

  9. RESULTSTest 2Attapulgus

  10. Texas Panicum Control with Callisto (6 oz/A) Applied PRE (LSD 0.05 = 7) (LSD 0.05 = 10) (LSD 0.05 = 10) (LSD 0.05 = 21) Planted: April 2 (DK 662RR) PRE: April 2

  11. Corn Yield with Callisto (6 oz/A) Applied PRE LSD 0.10 = 29 Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 Harvested: August 27

  12. Texas Panicum Control with Callisto(3 oz/A) Applied POST (LSD 0.05 = 10) (LSD 0.05 = 10) (LSD 0.05 = 21) Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 PANTE: 1-3”

  13. Corn Yield with Callisto (3 oz/A) Applied POST LSD 0.10 = 29 Planted: April 2 (DK 662RR) PRE: April 2 POST: April 20 Harvested: August 27

  14. Callisto Summary - 2001 • no significant crop injury was observed • Callisto did not provide acceptable control of Texas panicum and sicklepod in Georgia.

  15. University of Georgia Extension Weed Science (gaweed.com)

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