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.
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.
Club root
(Plasmodiophora
brassicae)
21 Ranman
(cyazofamid)
SEE LABEL - 0.5 Applied as a transplant soil drench.
29 Omega 500F
2.6 pt soil
oz/ 100 gal
transplant
drench
3.85 pt 20
(leafy); 50
(head and
stem)
2 Not labeled for watercress. Treated turnip
consumption.
Downy Mildew
(Perenospora parasitica)
M1 (copper compounds) SEE INDIVIDUAL
LABELS
1 Varies by
product
from 4 hr
to 2 days
Mancozeb or maneb enhances bactericidal
(Perenospora parasitica) Many brands available:
AmeriCop 40 DF, Badge SC, Badge
X2, Basic Copper 53, Champ DP Dry
Prill, Champ Formula 2 FL, Champ WG,
Champion++, Copper-Count-N, Cueva,
Kentan DF, Kocide 2000, Kocide 3000,
Kocide DF, Kop-Hydroxide, MasterCop,
Nordox, Nordox 75WG, Nu-Cop 3L,
Nu-Cop 50 WP, Nu-Cop 50DF, Nu-Cop
HB, Nu-Cop 30 HB, Nu-Cop XLR,
Previsto, Kop-Hydroxide
M3 (mancozeb) SEE INDIVIDUAL
LABELS
10 1 Not labeled for collards, mustard, turnip or
watercress. See labels for restrictions and
details.
Many brands available:
Dithane F45 Rainshield, Dithane M45,
Fortuna 75WDG, Koverall, Manzate
Max, Manzate Pro-Stick, Penncozeb
75DF, Penncozeb 80WP, Protect DF,
Roper DF Rainshield
M5 (chlorothalonil) SEE INDIVIDUAL
LABELS
7 2 Not labeled for leafy cole crops or watercress.
Many brands available:
Bravo Ultrex, Bravo Weather Stik,
Bravo ZN, Choloronil 720, Chlorothalonil
720SC, Echo 720, Echo 90 DF, Echo Zn,
Equus 500 ZN, Equus 720 SST, Equus
DF, Initiate 720, Initiate ZN, Praiz
4 Ridomil Gold SL
(mefenoxam)
0.25 pt foliar 1 pt
(foliar)
7 2 Not labeled for watercress. Use only in a tank
mix with another effective fungicide
(non FRAC code 4).
4 & M5 Ridomil Gold Bravo
Ridomil Gold Bravo SC
(mefenoxam + chlorothalonil)
1.5 lb See label 7 2 Not labeled for leafy cole crops or watercress.
Limit is 4 applications per crop.
11 Cabrio EG
(pyraclostrobin)
16 oz 64 oz 0
(head and
stem)
3(leafy)
4 hr No more than 2 sequential appl/stem and
head crop.
11 Quadris
Equation SC
Satori
(azoxystrobin)
92.3 0 4 hr Labelled for head and stem brassicas. No
more than 2 sequential appl.
11 Reason 500SC
(fenamidone)
8.2 oz 24.6 oz 2 0.5 Limits are no more than 1 sequential appl.
21 Ranman 0 0.5 This product can be applied as a transplant
(Cyazofamid) soil drench. Do not make more than six appl.
50 2019 Vegetable Production Handbook of Florida