Southeastern U.S. Vegetable Crop Handbook - 2021 - 216

TABLE 3-10. DISEASE CONTROL PRODUCTS FOR CUCURBITS (cont'd)
L. Quesada-Ocampo, Plant Pathologist, North Carolina State University; B. Dutta, Plant Pathologist, University of Georgia
Minimum Days
Disease
Leaf spots: Alternaria,
Anthracnose
(Colletotrichum),
Cercospora,
Gummy stem blight
(Didymella), Target
spot (Corynespora)
(cont'd)
Material
fixed copper (various)
mancozeb (various)
fluopyram + tebuconazole
(Luna Experience) 3.3 F
fluopyram + trifloxystrobin
(Luna Sensation) 1.67 F
fluxapyroxad +
pyraclostrobin
(Merivon 500 SC)
potassium phosphite +
tebuconazole
(Viathon)
pydiflumetofen +
fludioxonil
(Miravis Prime)
pyraclostrobin
(Cabrio) 20 WG
pyraclostrobin + boscalid
(Pristine) 38 WG
thiophanate-methyl
(Topsin M) 70 WP
zoxamide + mancozeb
(Gavel) 75 DF
Phytophthora blight
ametoctradin + dimethomorph
(Zampro
4.38SC)
cyazofamid
(Ranman 400SC)
dimethomorph
(Forum 4.17SC)
ethaboxam
(Elumin)
fluazinam
(Omega 500F, Lektivar
40 SC)
fluopicolide
(Presidio 4F)
mandipropamid
(Revus 2.08F)
oxathiapiprolin +
mefenoxam
(Orondis Gold 200)
oxathiapiprolin +
mandipropamid
(Orondis Ultra)
Plectosporium blight
azoxystrobin
(Quadris 2.08F)
azoxystrobin +
difenoconazole
(Quadris Top 1.67SC)
49 + 40 5.5 to 8 fl oz/acre
11
11 to
15.4 fl oz/acre
11 + 3 12 to 14 fl oz/acre
1
1
43
40
49 + 4
3 to 4 fl oz/acre
8 fl oz/acre
4.8 to
9.6 fl oz/acre
2
40
22
29
6 fl oz;/acre
8 fl oz/acre
0.75 to 1.5 pt/acre
2
7
21
2.75 fl oz/acre
11
11 + 7
1
22 + M03
45 + 40
12 to 16 oz/acre
12.5 to
18.5 oz/acre
0.5 lb/acre
1.5 to 2 lb/acre
14 oz/acre
5
0.5 Do not use for Gummy stem blight where resistance to group11
(QoI) fungicides exists. Make no more than one application before
alternating to a fungicide with a different mode of action.
1
Not for target spot. Do not use for gummy stem blight where resistance
to group 7 and group 11 fungicides exists. Use highest rate
for anthracnose. Make no more than 4 applications per season.
0.5 Spray at first appearance and then at 7 to 10 day intervals. Resistance
reported in gummy stem blight fungus.
2
0.5
Cercospora and Alternaria only. Begin applications when plants are
in 2-leaf stage and repeat at 7 to 10 day intervals. Now labeled on
all cucurbits. Maximum 8 applications per season.
Make no more than 2 applications before alternating to a fungicide
with different active ingredients. Do not rotate with Forum. Maximum
of 3 applications per crop per season. Apply at planting as a
preventative drench treatment. Addition of a spreading or penetrating
adjuvant is recommended.
0.5 Do not apply more than 6 sprays per crop. Make no more than 3
consecutive applications followed by 3 applications of fungicides
from a different resistance management group. Resistant isolates
have been found.
0.5 Must be applied as a tank mix with another fungicide with a
different mode of action. Do not make more than two sequential
applications.
0.5
0.5
Make no more than 2 applications before alternating to a fungicide
with different active ingredients. Apply no more than 16 fl oz/acre
per year.
Initiate applications when conditions are favorable for disease
development or when disease symptoms first appear. Repeat
applications on a 7 to 10 day schedule.
0.5 Tank mix with another Phytophthora fungicide with a different mode
of action. May be applied through drip irrigation to target crown rot
phase.
0.5
For disease suppression only, apply as a foliar spray with copper-based
fungicide.
4 hr Limit to 38.6 fl oz per acre per year. Limit of 6 applications per acre
per year for the same crop. Do not follow soil applications of Orondis
with foliar applications of Orondis. Apply at planting in furrow,
by drip, or in transplant water. Use the higher rates for heavier
soils, for longer application intervals, or for susceptible varieties.
4 hr Limit of 6 applications per acre per year for the same crop. Do not
follow soil applications of Orondis with foliar applications of Orondis.
Use the higher rates when diseases is present.
4 hr Make no more than one application before alternating with a
fungicide with a different mode of action. Apply no more than 2.88
qt per crop per acre per season, and do not make more than 4
applications of Group 11 products.
0.5
Make no more than one application before alternating with fungicides
that have a different mode of action. Apply no more than 56 fl
oz per crop per acre per season.
FRAC
Code
M01
M03
7 + 3
7 + 11
Rate of Material
Formulation
See label
See label
8 to 17 fl oz/acre
7.6 fl oz/acre
Harv. Reentry Method, Schedule, and Remarks
See
label
See
label
7
See
label
See
label
See labels. Rates vary depending on the formulation. Repeated
use may cause leaf yellowing.
See labels. Rates vary depending on the formulation. Labeled on
all cucurbits.
0.5 Not for Cercospora or target spot. Make no more than 2 applications
before alternating to a fungicide with different active ingredients.
Do not rotate with tebuconazole.
0.5 APPLY ONLY TO WATERMELON and only to control Alternaria
and Anthracnose. Make no more than 2 applications before alternating
to a fungicide with different active ingredients. Maximum 4
applications per season.
7 + 11
P07 + 3
7 + 12
4 to 5.5 fl oz/acre
4 pints/acre
9.2 to
11.4 fl oz/acre
7
1
0.5
Make no more than two sequential applications before alternating
with fungicides that have a different mode of action. Maximum of 3
applications per crop.
0.5 APPLY ONLY TO WATERMELON. Maximum 3 applications per
crop.
0.5
Begin applications prior to disease development. Follow resistance
management guidelines.
216
2021 Vegetable Crop Handbook for Southeastern United States
DISEASE CONTROL

Southeastern U.S. Vegetable Crop Handbook - 2021

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