2001 2002 TOBACCO PROGRAM

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MANAGINGSPOTTED WILT
Paul F. Bertrand, PathologistUniversity of
Georgia
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ACTIGARD andSPOTTED WILT
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ACTIGARD / ADMIRE
TRANSPLANT TREATMENT
48 TRIALS 2000 - 2002
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3 Yr. SUMMARY ACTIGARD ADMIRE
TSWV CONTROL

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APPLING CO. TRIAL
AC AD 28.6 TSWV
CHECK 68.4 TSWV
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HOUSE / BED ACTIGARD
SPRAY ON PLANTS 5-7 DAYS BEFORE TRANSPLANT
1 oz. ACTIGARD 50 WP TREATS 65,000 - 100,000
PLANTS
RATE DEPENDS ON PLANT SIZE
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HOUSE / BED ACTIGARD
RATE DEPENDS ON PLANT SIZE
1 oz. / 65,000 BED PLANTS 1 oz. / 90,000 -
100,000 338 CELL HOUSE PLANTS
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ACTIGARD WARNINGS
THERE IS NO FULLY SAFE RATE !!

• DO NOT OVERDOSE (1 oz /62,000 MAX)
• USE LOW RATE ON SMALL PLANTS
• DO NOT RE-TREAT PLANTS
• DO NOT HOLD TREATED BED PLANTS
• USE TRANSPLANT WATER

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ACTIGARD WARNINGS
THERE IS NO FULLY SAFE RATE !!
WITH CAREFUL ATTENTION TO RATE

• SOME STAND LOSS (1 - 3 )
• SOME SLOW GROWTH
• 7-14 DAY DELAY TO TOPPING
• PLANTS MAY NOT FULLY RECOVER

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ACTIGARD TREATEDTRANSPLANTS DO NOTHANDLE
STRESSVERY WELL
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ACTIGARDFIELD SPRAYS
42 TRIALS
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2001 RESULTS
FINAL TSWV
FIELD
PLANT
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2002 RESULTS
FINAL TSWV
FIELD
PLANT
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ACTIGARDFIELD SPRAYS
LESS EFFECTIVE MORE EXPENSIVE THAN HOUSE/BED
TREATMENT
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GET AGOOD STAND
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GOOD STAND

• CONTROL SOIL INSECTS
• CHECK PLANTS BEFORE TP
• COLD SOIL SORE SHIN
• DRY WATER PLANTS
• ADMIRE MAY HELP

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GOOD STAND

• POOR STAND DOES NOT
• INCREASE SPOTTED WILT
• POOR STAND DOES
• INCREASE TOTAL PLANT LOSS

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MAKE THECROP GROW
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MAKE THECROP GROW

• WHERE TOBACCO
• STARTS gt STOPS gt STARTS SPOTTED WILT SEEMS
  WORSE
• KEEP IT WATERED
• MAKE IT GROW

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MANAGING TSWV

• TRANSPLANT DATE
• ADMIRE / PLATINUM
• PLANT SOURCE ?
• ACTIGARD
• GOOD STAND
• MAKE CROP GROW

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MANAGINGSPOTTED WILT
90-95 OF ALL THAT CAN BE DONE IS DONE BY
TRANSPLANTING NOTHING CAN BE DONE AT 3 WEEKS
WHEN TSWV PROBLEMS APPEAR