Southeastern U.S. Vegetable Crop Handbook - 2022 - 241

DISEASE CONTROL
TABLE 3-19. DISEASE CONTROL PRODUCTS FOR LEAFY PETIOLE VEGETABLES -
CELERY, FENNEL, RHUBARB, AND SWISS CHARD (cont'd)
A. Keinath, Plant Pathologist, Clemson University
Note: Some fungicides are not registered on all leafy petiole crops; check Remarks section for exceptions before applying any fungicide to any crop included
in this section.
Disease/Material
(Rhyme 2.08SC)
flutriafol + azoxystrobin
fluxapyroxad + pyraclostrobin
(Merivon 500 SC)
fluoxastrobin
(Aftershock 4 SC, Evito 480SC)
mancozeb (various)
penthiopyrad
(Fontelis 1.67 F)
propiconazole (various)
pydiflumetofen + fludioxonil
(Miravis Prime 2.09 SC)
pyraclostrobin
(Cabrio 20 EG, Pyrac 2 EC
trifloxystrobin
(Flint Extra 42.6 SC)
WHITE MOLD, PINK ROT (SCLEROTINIA)
boscalid
7
(Endura 70 WG)
cyprodinil + fludioxonil
(Switch 62.5WG)
dicloran
(Botran 75 W)
fludioxonil (various)
fludioxonil + pydiflumetofen
(Miravis Prime 2.09 SC)
penthiopyrad
(Fontelis1.67 F)
Coniothyrium minitans
(Contans WG)
12
12+7
7
NA
9+12
11 to 14 oz/ acre
0.5
4.5 to 9 oz/acre
11
2.5 to 2.9 fl oz/acre
(broadcast),
14 (banded)
0.5
Make no more than 2 sequential applications before alternating with fungicides
that have a different mode of action. Limit of 18 oz/acre per year. Do not
use on cilantro. Do not use in greenhouses
Make no more than 2 sequential applications before alternating with fungicides
that have a different mode of action for two applications. Apply no more
than 56 oz per crop per acre per season. First application at thinning and
second application 2 weeks later. Also controls gray mold.
14
2 lb/acre or 5.3 lb/
acre (single application)
see
label
13.4 fl oz/acre
16 to 30 fl oz/acre
1 to 4 lb/acre
7
3
0.5
0.5
0.5
0.5
4 hr
Apply only once at 5.3 lb/acre or twice at 2 lb/acre. Suggested application
time is 10 weeks before harvest. Labeled only on celery and fennel.
Make no more than 4 applications per crop per year. Appling excessive water
after application may decrease efficacy. Also controls gray mold.
Limit of 2 applications per crop per year. Not labeled on fennel. Do not use
in greenhouses.
Do not make more than two sequential applications. Maximum of 72 fl oz/
acre per year.
OMRI listed product. Apply to soil surface and incorporate no deeper than
2 inches. Works best when applied prior to planting or transplanting. Do not
apply other fungicides for 3 weeks after applying Contans.
0.5
M03
7
3
1.6 qt/acre
14 to 24 fl oz
3 to 4 fl oz/acre
7+12 9.2 to 13.4 fl oz/acre
(13.4 fl oz/acre for
gray mold)
11
12 to 16 oz/acre
14
3
14
7
1.0
0.5
0.5
0.5
3+11
7+11
11
6 to 8 fl oz/acre
4 to 11 fl oz/acre
5.7 fl oz/acre
7
3
3
0.5
0.5
0.5
FRAC
Code
3
Rate of Material
Formulation
5 to 7 fl oz/acre
Minimum Days
Harv.
7
Reentry Method, Schedule, and Remarks
ALTERNARIA LEAF SPOT, CERCOSPORA LEAF SPOT (EARLY BLIGHT), POWDERY MILDEW, SEPTORIA LEAF SPOT (LATE BLIGHT) (CONT'D)
flutriafol
0.5
Make no more than 4 applications (28 fl oz) per crop per year. Do not use in
greenhouses.
Make no more than 4 applications per crop per year. Do not use in greenhouses.
Make
no more than 2 sequential applications before alternating with fungicides
that have a different mode of action. Maximum of 3 applications per
crop. Do not use in greenhouses.
Make no more than 4 applications per acre per year. Alternate each application
with a non-FRAC Group 11 fungicide. Not labeled to control Alternaria or
powdery mildew.
Make no more than 8 applications per acre per season. Labeled only on
fennel.
Do not make more than 2 sequential applications. Maximum of 72 fl oz/acre
per year
Begin at first sign of disease and repeat at 14-day intervals. Make no more
than 2 consecutive applications before rotating to another fungicide with a
different mode of action. Not labeled to control Alternaria or powdery mildew.
Make no more than 2 sequential applications of Miravis Prime or other Group
7 and 12 fungicides before rotating to another effective fungicide with a different
mode of action. Maximum 2 applications per year. Not labeled for Septoria
leaf spot. Not labeled on fennel. Do not use in greenhouses.
0.5
Make no more than 2 sequential applications before alternating with fungicides
that have a different mode of action. Apply no more than 64 oz per crop
per acre per season. Do not use in greenhouses.
Limit of 11.6 fl oz per acre per season.
2022 Vegetable Crop Handbook for Southeastern United States
241

Southeastern U.S. Vegetable Crop Handbook - 2022

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