Table 7.11. Cucurbit 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.
M2 + 3 Unicorn 5 lb 15 lb 14 0.5 Suppression only. Only available for use on
(sulfur + tebuconazole) certain crops, see label for details.
M1 & M3 ManKocide 3 lb 24 lb 5 2 Some cantaloupe varieties are sensitive.
(copper hydroxide & mancozeb) Check label for details.
M3 (mancozeb) SEE INDIVIDUAL
LABELS
5 1
Many brands available:
Dexter Max, Dithane DF Rainshield, Dithane
F45 Rainshield, Dithane M45, Fortuna
75WDG, Koverall, KOVERALL, Manzate
Max, Manzate Pro-Stick, Penncozeb 75DF,
Penncozeb 80WP, Protect DF, Roper DF
Rainshield
M5 (chlorothalonil) SEE INDIVIDUAL
LABELS
0 1
Follow label recommendations on watermelon
after fruit set. Do not apply to mature
watermelons under dry, hot, and other
environmental conditions as indicated on the
label.
Many brands available:
Arius ADV, Bravo Ultrex, Bravo Weather Stik,
Bravo ZN, Choloronil 720, Chlorothalonil 720,
Chlorothalonil 720 SC, Echo 720, Echo 90 DF,
Echo ZN, EQUUS 720 SST, Equus 720 SST,
Equus DF, Initiate 720, Initiate ZN, Orondis
Opti B, Praiz
1 (thiophanate-methyl) SEE INDIVIDUAL
LABELS
1 1 Follow resistance management guidelines
indicated on the label. Check label for
additional guidelines.
Many brands available: 3336 EG, 3336 F,
3336 WP, Cercobin, Incognito 4.5F, Incognito
85WDG, T-Methyl 4.5 AG, T-Methyl 70 WP,
Talaris 4.5 F, Talaris 70 WSB, T-Methyl 4.5 F,
TM 4.5 F, Topsin 4.5 FL, Topsin M WSB
3 Topguard 0 0.5 See label
3 (tebuconazole) 7 0.5 Gummy stem blight suppression is only for
watermelon, squash, pumpkin, and melons.
See label for individual brands.
Many brands available: Incognito 4.5F,
Monsoon, Onset 3.6L, Orius 3.6F, Teb 3.6 SC,
Tebu-Crop 3.6F, Tebuconazole 3.6 F, Tebustar
3.6L, Tebuzol 3.6F, Toledo, Vibe
3 Proline 7 0.5 Limit is 1 soil application and 2 foliar
(prothioconazole) applications per year.
3 Rhyme
year
0 0.5 Do not apply more than 2 sequential
applications before rotating with a different
FRAC group fungicide
3 Mettle 125 ME
(tetraconazole)
year
0 0.5 Make no more than 2 sequential applications
before rotating to another fungicide with
alternate mode of action. Suppression only.
3 & M5 Muscle ADV
(tebuconazole + chlorothalonil)
1.6 pt 6.4 pt 7 0.5 Watermelon, squash, pumpkin, and melon
only.
3 & 33 Viathon 4 pt 12 pt 7 0.5
(tebuconazole + potassium phosphite)
4 & M5 Ridomil Gold Bravo SC 3.25 pt See label 0 2 Limit is 4 appl/crop.
(mefenoxam + chlorothalonil)
M5 & U15 Orondis Opti
(chlorothalonil + oxathiapiprolin)
2.5 pt 10 pt/
year
0 0.5 Check label for additional guidelines. Make
no more than 2 sequential applications before
rotating to a fungicide with different mode of
action.
7 Endura 6.5 oz 26 oz 0 0.5 Do not make more than one application of
Endura before alternating to another labeled
fungicide with a different mode of action for at
least one application.
(boscalid)
7 Fontelis
(penthiopyrad)
year
1 0.5 Maximum rate is for year. Do not make more
than 2 app sequentially
76 2019 Vegetable Production Handbook of Florida