Southeastern U.S. Vegetable Crop Handbook - 2021 - 261

DISEASE CONTROL
TABLE 3-31. DISEASE CONTROL PRODUCTS FOR ROOT VEGETABLES (EXCEPT SUGAR BEET) (cont'd)
Z. Hansen, Plant Pathologist, University of Tennessee
Disease
Phytophthora basal
stem rot
(cont'd)
Material
fenamidone
(Reason)
Pythium root rot, root
dieback, cavity spot
(Pythium spp.)
cyazofamid
(Ranman)
FRAC
Code
11
Rate of Material
Formulation
Minimum Days
Harv. Reentry Method, Schedule, and Remarks
Beet (red, garden or table), Carrot, Parsnip, Radish, Turnip - Harvested for roots only (unless noted in remarks) (cont'd)
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 growing season.
Applied with sprayer or in sprinkler irrigation.
21
6 fl oz/acre
14
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.
azoxystrobin + mefenoxam
(Uniform)
fluopicolide
(Presidio)
11 + 4
43
0.34 fl oz/
1000 row ft
3 to 4 fl oz/acre
-
7
0.5
NOT FOR CARROTS. In-furrow treatment only
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.
fenamidone
(Reason)
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.
mefenoxam
(Ridomil Gold) 4 SL
(Ultra Flourish) 2 EC
metalaxyl (various)
azoxystrobin (various)
Rust (Puccinia spp.)
penthiopyrad
(Fontelis)
sulfur (various)
trifloxystrobin
(Flint)
(Gem)
White mold
(Sclerotinia spp.) and
gray mold
(Botrytis spp.)
boscalid
(Endura)
fluazinam
(Omega)
fluopyram + pyrimethanil
(Luna Tranquility)
White mold
(Sclerotinia spp.) and
gray mold (Botrytis
spp.) White mold
(Sclerotinia spp.) and
gray mold (Botrytis
spp.) (postharvest)
Southern blight
(Sclerotium rolfsii)
fluopyram + trifloxystrobin
(Luna Sensation)
penthiopyrad
(Fontelis)
thiabendazole
(Mertect)
azoxystrobin (various)
azoxystrobin + difenoconazole
(Quadris Top)
4
11
7
M
11
2.0 to 2.9 fl oz/acre
1.9 to 2.9 fl oz/acre
7
29
7 + 9
7+11
7
7.8 oz
1 pt/acre
11.2 fl oz/acre
5.8 fl oz/acre
16 to 30 fl oz/acre
7
7
7
4
1 to 2 pt/trt acre
2 to 4 pt/trt acre
4 to 8 pt/trt acre
0.4 to 0.8 fl oz
/1000 row ft
16 to 30 fl oz/acre
3 to 10 lb/acre
7
-
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 as a soil surface
spray after 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
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.
0.5 NOT FOR RADISHES. 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.
0.5 FOR USE ON CARROTS ONLY. 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 ONLY. For white mold only.
0.5
0.5
0.5
Do not make more than 2 consecutive applications before rotating
to a labeled non-Group 7 or non-Group 9 fungicide. Not
labeled for use in Louisiana. Use 11.2 fl oz/acre for white mold.
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.
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. Also labeled for use on
harvested garden beet, turnip, and radish leaves.
1
11
41 fl oz/100 gal
0.4 to 0.8 fl oz/1000
row ft
11 + 3 12 to 14 fl oz/acre
-
7
0.5 FOR USE ON CARROTS ONLY. Dip harvested roots 5 to 10
seconds. Do not rinse.
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.
2021 Vegetable Crop Handbook for Southeastern United States
261
Southeastern U.S. Vegetable Crop Handbook - 2021

Table of Contents for the Digital Edition of Southeastern U.S. Vegetable Crop Handbook - 2021
