Table 18.4. Tomato fungicides ordered by disease and then FRAC group according to their mode of action. (continued)
Pertinent Diseases
or Pathogens
Fungicide
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.
12 Emblem 0 0.5 Transplant and Greenhouse use only. Limit
to 4 applications per year. No more than 2
sequential applications before rotating to a
different mode of action for 2 applications.
14 Botran 75 W 1 lbs per
100 gal.
5.33 lb 10 0.5 Greenhouse use only. Limit is 4 applications.
Seedlings or newly set transplants may be
injured.
(dichloran)
17 Decree 50 WDG 1.5 lb 6 lb 0 0.5 Transplant and Greenhouse use only. Do not
(fenhexamid) make more than 2 consecutive applications.
19 Ph-D WDG 6.2 oz 31.0 oz 0 4 hr Alternate with a non-FRAC code 19
Oso 5% SC 0 4 hr fungicide.
(polyoxin D zinc salt)
27 & M5 Ariston 1.9 pt 30.2 pt 3 0.5 Check copper manufacturer’s label for
mixing with this product.
(cymoxanil + chlorothalonil)
U15 + M5 Orondis Opti 2.5 pt 10 pt 0 4 hr Do not use Orondis Opti following a soil app.
of another oxathiapiprolin product. No more
than 2 sequential apps. before rotating to
another mode of action; 7 day minimum app.
interval. Applications of Orondis Opti should
not exceed more than 33% of the total
foliar fungicide apps., or 4 apps. per crop,
whichever is fewer. Limit on multiple crops
is 6 apps. per acre per year. Not labeled for
greenhouse use.
(oxathiapiprolin + chlorothalonil)
Buckeye rot M1 + 4 Ridomil Gold Copper 2 lb 6 lb 14 2 Limited to 3 apps per season. Tankmix with
Phytophthora fruit rot (copper hydroxide + mefenoxam) mancozeb.
(Phytophthora spp.)
11 (azoxystrobin) SEE INDIVIDUAL
LABELS
0 4 hr Must alternate or tank mix with a fungicide
label for mixing instructions and precautions.
Many brands available:
AFrame, Arius, AzoxyStar, Azoxystrobin
100ST, Azoxyzone, Azteroid FC, Dynasty,
Gold Rush, Heritage, Mazolin, Quadris
FL, Satori, Tetraban, Trevo, Willowood
Azoxy 2SC
11 Cabrio 2.09 F 0 0.5 Only 2 sequential appl. allowed. Limit is 6
appl/crop. Must alternate or tank mix with a
fungicide from a different FRAC group, see
label.
(pyraclostrobin)
11 & M5 Quadris Opti 1.6 pt 8 pt 0 0.5 Must alternate with a non-FRAC code 11
fungicide; use of an adjuvant may cause
phytotoxicity.
(azoxystrobin + chlorothalonil)
(suppression) 11 & 27 Tanos 8 oz 72 oz 3 0.5 Do not alternate or tank mix with other FRAC
(famoxadone + cymoxanil) group 11 fungicides.
22 & M3 Gavel 75DF 2.0 lb 16 lb 5 2 See label
(zoaximide + mancozeb)
U15 + M5 Orondis Opti 2.5 pt 10 pt 0 4 hr Do not use Orondis Opti following a soil app.
of another oxathiapiprolin product. No more
than 2 sequential apps. before rotating to
another mode of action; 7 day minimum app.
interval. Applications of Orondis Opti should
not exceed more than 33% of the total
foliar fungicide apps., or 4 apps. per crop,
whichever is fewer. Limit on multiple crops
is 6 apps. per acre per year. Not labeled for
greenhouse use.
(oxathiapiprolin + chlorothalonil)
376 2019 Vegetable Production Handbook of Florida