Southeastern U.S. Vegetable Crop Handbook - 2023 - 265

DISEASE CONTROL
TABLE 3-31. DISEASE CONTROL PRODUCTS FOR ROOT VEGETABLES (EXCEPT SUGAR BEET) (CONT'D)
Z. Hansen, Plant Pathologist, University of Tennessee
Disease/Material
FRAC
Code
Rate of Material
Formulation
Minimum Days
Harv. Reentry Method, Schedule, and Remarks
BEET (RED, GARDEN,TABLE), CARROT, PARSNIP, RADISH, TURNIP - HARVESTED FOR ROOTS ONLY (UNLESS NOTED) (cont'd)
PYTHIUM ROOT ROT, ROOT DIEBACK, CAVITY SPOT (PYTHIUM SPP.)
cyazofamid
(Ranman)
21
6 fl oz/acre
14
azoxystrobin + mefenoxam
(Uniform)
azoxystrobin
(various)
fluopicolide
(Presidio)
11+4 0.34 fl oz/1000 row ft -
11
43
0.4 to 0.8 fl oz/
1000 row ft
3 to 4 fl oz/acre
7
NOT FOR CARROTS. In-furrow treatment only at planting.
4 hr Make one application, applied either in-furrow at planting, in a 7-inch band over
the row prior to or shortly after planting, or in drip irrigation.
0.5
Can be applied with a sprayer or in sprinkler irrigation. Regardless of method,
must be applied in combination with a fungicide with a different mode of action
and labeled for that method. No more than 2 consecutive applications before
alternating with a Pythium fungicide with a different mode of action. Maximum of
12 fl oz/acre/year. For carrots only, may also be applied preplant incorporated.
Do not use on turnips intended for livestock. Use with highest rate for carrot.
fenamidone
(Reason 500SC)
mefenoxam
(Ridomil Gold 4 SL)
(Ultra Flourish 2 EC)
metalaxyl
(various)
RUST (PUCCINIA SPP.)
fluopyram + trifloxystrobin
(Luna Sensation)
penthiopyrad
(Fontelis)
sulfur
(various)
trifloxystrobin
(Flint)
(Gem 500SC)
7
11
2 to 3 oz/acre
1.9 to 2.9 fl oz/acre
WHITE MOLD (SCLEROTINIA SPP.) AND GRAY MOLD (BOTRYTIS SPP.)
boscalid
(Endura)
7.8 oz
chlorothalonil
(various)
fluazinam
(Omega)
fluopyram + trifloxystrobin
(Luna Sensation)
fluopyram + pyrimethanil
(Luna Tranquility)
M
29
7+11
1.5 to 2 pt/acre
1 pt/acre
see label
Check
label
7
7
0.5
7
0.5
4
11
8.2 fl oz/acre
14
0.5 NOT LABELED FOR RADISH ROOTS. Make no more than 1 application
before alternating with a mefenoxam-containing fungicide. Apply no more than
24.6 fl oz per season. Apply with sprayer or in sprinkler irrigation. Do not use a
spreader/sticker on carrots. Pythium control only for carrot.
4
1 to 2 pt/trt acre
2 to 4 pt/trt acre
4 to 8 pt/trt acre
7+11
see label
-
2
-
2
Apply preplant incorporated into top 2 inches or as a pre-emergent soil spray.
Surface spray must be incorporated by rainfall or irrigation
May be applied preplant incorporated or to soil surface spray after planting.
7
0.5
Not for Cercospora except on carrots. Do not make more than 2 consecutive
applications before rotating to a labeled non-Group 7 or non-Group 11
fungicide. Carrot rate is 4.0 to 7.6 fl oz/acre. Other root crop rates are 5 to 5.8
fl oz/acre.
7
M
16 to 30 fl oz/acre
see label
0.5
1
Make no more than 2 consecutive applications before alternating with a fungicide
with a different mode of action. Apply no more than 61 fl oz/acre per year.
Spray at first appearance. Avoid applying on days over 90°F. Also labeled for
use on harvested garden beet and turnip leaves.
Make no more than 1 application before alternating with a fungicide with
another mode of action. Make no more than 4 applications of trifloxystrobin or
other strobilurin fungicides per season. Flint not labeled for rust on radish. Gem
500SC not labeled for radish.
No more than 2 applications before alternating with a fungicide with a different
mode of action. Limit of 3 applications per season.
0.5 FOR USE ON CARROTS AND PARSNIPS ONLY. For gray mold on parsnip
only. Spray at first appearance, 7- to 10-day intervals.
0.5 FOR USE ON CARROTS ONLY. For white mold only.
0.5
Not for Cercospora except on carrots. Do not make more than 2 consecutive
applications before rotating to a labeled non-Group 7 or non-Group 11
fungicide. Carrot rate is 4.0 to 7.6 fl oz/acre. Other root crop rates are 5 to 5.8
fl oz/acre.
7+9
11.2 fl oz/acre
7
0.5
Do not make more than 2 consecutive applications before rotating to a labeled
non-Group 7 or non-Group 9 fungicide. Use 11.2 fl oz/acre for white mold. Not
labeled for use in Louisiana.
WHITE MOLD (SCLEROTINIA SPP.) AND GRAY MOLD (BOTRYTIS SPP.), (POSTHARVEST) SOUTHERN BLIGHT (SCLEROTIUM ROLFSII)
azoxystrobin
(various)
11
azoxystrobin + difenoconazole
(Quadris Top)
fluazinam
(Omega)
fluopyram + trifloxystrobin
(Luna Sensation)
11+3
29
7+11
0.4 to 0.8 fl oz/1000
row ft
12 to 14 fl oz/acre
16 fl oz/acre
see label
7
7
7
0.5 FOR USE ON CARROTS ONLY.
0.5 FOR USE ON CARROTS AND TURNIP GREENS ONLY. Turnip roots treated
with Omega are not for human or animal consumption.
0.5
Do not make more than 2 consecutive applications before rotating to a labeled
non-Group 7 or non-Group 11 fungicide. Carrot rate for Sclerotinia suppression
is 7.6 fl oz/acre.
2023 Vegetable Crop Handbook for Southeastern United States
265
4 hr Make one application, applied either in-furrow at planting, in a 7-inch band over
the row prior to or shortly after planting, or in drip irrigation.
0.5 FOR USE ON CARROTS ONLY. May be applied preplant incorporated, as
a pre-emergent surface band, or in sprinkler irrigation. Applications can be
repeated at 14- day intervals but must alternate with a Pythium fungicide with
a different mode of action. Do not apply more than 30 fl oz per season. Do not
use any adjuvant.
Southeastern U.S. Vegetable Crop Handbook - 2023

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