Table 10.9. Celery fungicides ordered by disease and then FRAC group according to their mode of action. (continued)
Pertinent Diseases
Fungicide
Chemical
or Pathogens
Group1
(active ingredients)
Max. Rate/Acre Min. Days to
Applic. Season Harvest Reentry Remarks2
Labels change frequently. Be sure to read a current product label before applying any chemical.
7 & 12 0 12 hr See label for restrictions.
9 & 12 Switch
14 oz 56 oz 0 0.5 Rotate with fungicides of dissimilar mode
of action.
11 (azoxystrobin) Many brands available:
Azoxyzone, Azteroid SC, Equation SC,
Quadris SC, Satori, Willowood Azoxy
0 0.5 Alternate every other application with a
fungicide of dissimilar mode of action.
11 Aftershock 3 0.5 Alternate every other application with a
fungicide of dissimilar mode of action.
11 Evito 480SC 3 0.5 Alternate every other application with a
fungicide of dissimilar mode of action.
11 Reason 2 0.5 Alternate every other application with a
(fenamidone) fungicide of dissimilar mode of action.
11 Flint 3 oz 12 oz 7 0.5 Alternate every other application with a
fungicide of dissimilar mode of action.
11 Gem 500SC 7 0.5 Alternate every other application with a
fungicide of dissimilar mode of action.
11 & M5 Quadris Opti 3.7 pt 22.2 pt 7 0.5 Do not exceed 2 sequential and 6 total
appl. of Quadris Opti. or rotate with non Qol
fungicides.
(azoxystrobin + chlorothalonil)
11 & 3 Quilt 14 0.5 Alternate every other application with a
(azoxystrobin + propiconazole) fungicide of dissimilar mode of action.
11 & 3 Quilt XCEL 14 0.5 Alternate every other application with a
(azoxystrobin + propiconazole) fungicide of dissimilar mode of action.
12 7 oz 28 oz 0 0.5 Alternate with fungicides of dissimilar
modes of action.
Downy Mildew 40 Forum
(dimethomorph)
0 0.5 Rotate with fungicides of dissimilar mode
of action.
40 Revus
(mandipropamid)
1 0.5 Do not make more than 2 sequential
applications without rotating to a fungicide
of dissimilar mode of action.
40 & 45 Zampro
(dimethomorph + ametoctradin)
0 0.5 Do not make more than 2 sequential
applications without rotating to a fungicide
of dissimilar mode of action.
43 Presidio
2 0.5 Must be tank-mixed with another fungicide
active against the pathogen but of
dissimilar mode of action.
Pink rot (Sclerotinia) 14 Botran 75W
(dichloran)
2 lb 5.33 lb 7 0.5 Direct spray to base of plant.
Powdery mildew M2 (sulfur) SEE INDIVIDUAL
LABELS
1 1 Do not apply during periods of warm
weather. Do not apply within 2 weeks of
an oil spray.
Many labels available: Cosavet, Dusting
Sulfur – IAP, Kumulus DF, Micro Sulf,
90W, Super-Six, Top Cop w/ Sulfur
7 & 12 0 12 hr See label for restrictions.
9 & 12 Switch
14 oz 56 oz 0 0.5 Rotate with fungicides of dissimilar mode
of action.
Pythium 33 Aliette WDG 5 lb 20 lb 0.5
Legion 80WDG 5 lb 20 lb 0.5
Linebacker WDG 5 lb 20 lb 0.5
(fosetyl-Al)
Pythium seedling
blight
4 Apron XL LS
(mefenoxam)
oz./
2 Seed treatment only.
100 lb
seed
4 Metastar 2E AG 8 pt 2 Apply as a broadcast soil application and
incorporate into top 2 inches. See label for
directions.
(metalaxyl)
2019 Vegetable Production Handbook of Florida 169