Table 6.8. Cole crop fungicides ordered by disease and FRAC group according to mode of action. (continued)
Pertinent Diseases
Fungicide
or Pathogens
Group1
Chemical
(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 Endura 9 oz 18 oz 0 (head
and stem)
0.5 Limit is 2 appl/crop. Suppression Only.
(boscalid)
14 (leafy)
7 Fontelis 0 0.5 No more than 2 sequential applications.
(penthiopyrad)
9 & 12 Switch 62.5WG 14 oz 56 oz 7 0.5 No more than 2 sequential appl. before
rotating to a different mode of action for at
least 2 appl; 30 day plant-back for off-label
crops.
9 & 3 Inspire Super 7 0.5 Begin applications prior to disease development,
and continue on a 7 – 10 day interval.
Make no more than 2 sequential applications
before rotating to another effective fungicide
with a different mode of action.
(cyprodinil + difenoconazole)
11 Cabrio EG 16 oz 64 oz 0 (head
(pyraclostrobin) and stem)
head crop.
4 hr No more than 2 sequential appl/stem and
3 (leafy)
11 & 3 Quadris Top 1 0.5 No more than 1 sequential appl.
(azoxystrobin + difenoconazole)
11 & 3 Topguard EQ
7 0.5 Use of silicone or oil-based additives may
result in negative crop response. In situations
where an adjuvant is necessary, use of a
nonionic surfactant is recommended
11 & 3 Quilt 7 0.5
(azoxystrobin + propiconazole)
11 & 7 Priaxor 3 12 hr No more than 2 sequential applications. No
more the 3 applications in a season.
Pythium &
Phytophthora diseases
(soil)
4 Ridomil Gold SL
(mefenoxam)
2 pt (soil) 2 pt (soil) 7 2 Not labeled for watercress; Use only in a tank
mix with another effective fungicide
(non FRAC code 4).
4 Apron XL SEE LABEL - 2 Seed treatment only; Not labeled for
(mefenoxam) watercress. See label for details.
4 Ultra Flourish
(mefenoxam)
4 pt 4 pt - 2 Soil applied as a preplant treatment or
following transplanting.
Pythium Damping-off
Pythium spp.
4 Allegiance-FL
(Metalaxyl)
SEE LABEL - 2 Seed treatment only. Primarly for commercial
seed treatment.
4 MetaStar 2E AG
(Metalaxyl)
SEE LABEL - 2 Can be applied as a preplant and surface
application. Do not use in greenhouse crops
43 Presidio 2 - Not labeled for watercress. Limit is no more
than 2 sequential appl. or 4 total appl. per
season.
4 & 11 Uniform
100 ft of row
1.0 lb a.i. - - Only one application per season.
(mefenoxam + azoxystrobin)
Phytophthora spp. 4 MetaStar 2E AG SEE LABEL - 2 Can be applied as a preplant and surface
application. Do not use in greenhouse crops
(Metalaxyl)
43 Presidio 2 - Not labeled for watercress. Limit is no more
than 2 sequential appl. or 4 total appl. per
season.
Rhizoctonia rot and
blight
7 Endura
(boscalid)
9 oz 18 oz 0 (head
and stem)
14 (leafy)
0.5 Limit is 2 appl/crop. Suppression Only.
(Rhizoctonia solani)
11 Cabrio EG 16 oz 64 oz See Label 4 hr No more than 2 sequential appl/stem and
head crop. Labeled only for suppression in
leaf greens.
(pyraclostrobin)
52 2019 Vegetable Production Handbook of Florida