Efficacy of SOME Cucurbit Fungicides
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A. THE FIVE FUNGICIDES IN THE SINGLE BLOCK BELOW ARE PROTECTANT MATERIALS. FOR THESE MATERIALS,
SPECIAL PROCEDURES USUALLY ARE NOT NEEDED AND ARE NOT LISTED ON LABELS RELATIVE TO SLOWING
DEVELOPMENT OF FUNGUS RESISTANCE TO THESE MATERIALS. HOWEVER, WHEN THE DISEASE OF CONCERN
IS LISTED ON THE LABEL FOR ANY OF THESE FUNGICIDES, THE FUNGICIDE COULD BE A GOOD TANK-MIX
PARTNER TO HELP SLOW DEVELOPMENT OF RESISTANCE TO FUNGICIDES LISTED BELOW THESE FIVE MATERIALS.
POST-
POWDERY DOWNY GUMMY S.B. HARVEST
FUNGICIDE GROUP MILDEW MILDEW = BLACK ROT ANTHRACNOSE INTERVAL
##################################################################################################
# #
# Bravo M 4 2 4 4 0 day #
# #
# Sulfur, micronized M 4 - - - 0 day #
# #
# Fixed coppers M 1 1 1 1 1 day #
# #
# Mancozeb/maneb M 1 3 3 3 5 day #
# #
# Gavel 22 + M 1 4 2 2 5 day #
# #
##################################################################################################
B. FUNGICIDES WITHIN EACH BLOCK BELOW CONTAIN AT LEAST ONE CHEMICAL THAT IS IN THE SAME CLASS.
WHEN MORE THAN ONE APPLICATION IS MADE, IT IS IMPORTANT TO ALTERNATE FUNGICIDES FROM DIFFERENT
FUNGICIDE CLASSES! THIS WILL SLOW THE DEVELOPMENT OF FUNGUS-RESISTANCE TO SPECIFIC FUNGICIDES
WITHIN THESE CLASSES.
POST-
POWDERY DOWNY GUMMY S.B. HARVEST
FUNGICIDE GROUP MILDEW MILDEW = BLACK ROT ANTHRACNOSE INTERVAL
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Nova 3 5 - - - 3 day $
$ Procure 3 5 - - - 3 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Ridomil Gold/Bravo 4 + M 2 5 3 3 0 day $
$ Ridomil Gold/Copper 4 + M - 2 1 0 5 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Amistar = Quadris 11 4 2 4 4 1 day $
$ Cabrio 11 3 4 4 5 0 day $
$ Flint 11 4 1 4 4 0 day $
$ $
$ Pristine 11 + 7 3 4 5 2 0 day $
$ $
$ Tanos 11 + 27 - 4 - ? 3 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Tanos 11 + 27 - 4 - ? 3 day $
$ Curzate 27 - 3;KB - - 3 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Acrobat 15 - 1 - - 0 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Previcur Flex 28 - 4 - - 2 day $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ $
$ Aliette 33 - 1 - - 12 hr $
$ $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
NOTE: NUMBERS WITHIN THE FOUR DISEASE COLUMNS ABOVE INDICATE AN EFFICIENCY RATING BASED ON
PUBLISHED RESULTS FROM SCIENTIFIC EXPERIMENTS. THE RATING SCALE IS FROM 1 TO 5, WITH A
5 INDICATING THE MOST EFFECTIVE.
THESE TABLES WERE PREPARED FROM MATERIAL SUMMARIZED BY DR. GERALD HOLMES AT THE N.C. STATE UNIVERSITY.
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Dr. Alan A. MacNab, Professor, Plant Pathology
Penn State College of Agricultural Sciences
211 Buckhout Lab, University Park, PA 16802
Prepared: Aug. 24, 2005; AAM
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