Southeastern U.S. Vegetable Crop Handbook - 2021 - 215

DISEASE CONTROL
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
Downy mildew
(cont'd)
Material
mefenoxam +
chlorothalonil
(Ridomil Gold Bravo,
Flouronil 76.5 WP)
oxathiapiprolin +
chlorothalonil
(Orondis Opti SC)
oxathiapiprolin + mandipropamid
(Orondis
Ultra)
propamocarb
(Previcur Flex 6 F)
zoxamide + mancozeb
(Gavel 75 DF)
Fusarium wilt
prothioconazole
(Proline 480 SC)
pydiflumetofen + fludioxonil
(Miravis
Prime)
Gummy stem blight,
Black rot
prothioconazole
(Proline 480 SC)
tebuconazole
(Monsoon 3.6 F)
Leaf spots: Alternaria,
Anthracnose
(Colletotrichum),
Cercospora,
Gummy stem blight
(Didymella), Target
spot (Corynespora)
azoxystrobin
(Quadris 2.08F)
azoxystrobin +
chlorothalonil
(Quadris Opti)
azoxystrobin +
difenoconazole
(Quadris Top 1.67 SC)
chlorothalonil (various)
chlorothalonil +
potassium phosphite
(Catamaran 5.27 SC)
cyprodinil + fludioxonil
(Switch 62.5WG)
difenoconazole +
benzovindiflupyr
(Aprovia Top)
difenoconazole +
cyprodinil
(Inspire Super 2.82SC)
famoxadone + cymoxanil
(Tanos 50WP)
fenamidone
(Reason) 500 SC
11 + 27
8 oz/acre
3
0.5
M05
M05 + 33
9 + 12
7 + 3
3 + 9
See label
6 pints/acre
11 to 14 oz/acre
10.5 to
13.5 fl oz/acre
16 to 20 fl oz/acre
7
0.5
See
label
1
See
label
11 + 3
12 to 14 fl oz/acre
1
0.5
3
5.7 fl oz/acre
7
28
22 + M03
3
1.2 pt/acre
1.5 to 2 lb/acre
5.7 fl oz/acre
2
5
7
49 + M05 1.7 to 2.5 pt/acre
FRAC
Code
4 + M05
Rate of Material
Formulation
2 to 3 lb/acre
Harv. Reentry Method, Schedule, and Remarks
2
7
Spray at first appearance and repeat at 14-day intervals. Apply
full rate of protectant fungicide between applications. Avoid
late-season application when plants reach full maturity. Resistance
reported.
0.5 Limit to 10 pt per acre per year. Limit of six foliar applications per
acre per year for the same crop. Do not follow soil applications of
Orondis with foliar applications of Orondis. Begin foliar applications
prior to disease development and continue on a 5- to 14-day interval.
Use the higher rates when disease is present.
49 + 40 5.5 to 8 fl oz/acre
4 hr Limit to 32 fl oz per acre per year. Limit of six foliar applications per
acre per year for the same crop. Do not follow soil applications of
Orondis with foliar applications of Orondis. Begin foliar applications
prior to disease development and continue on a 5- to 14-day interval.
Use the higher rates when disease is present.
0.5
2
0.5
Begin applications before infection; continue on a 7 to 14 day
interval. Do not apply more than 6 pt per growing season. Always
tank mix with another Downy mildew product.
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.
One soil and two foliar applications allowed by either ground or
chemigation application equipment (including drip irrigation). Do
not use in water used for hand trans- planting. Not for use in greenhouse/transplant
house.
7 + 12
11.4 fl oz/acre
1
0.5 For Suppression Only. Do not make more than two applications
before alternating with a non-Group 7 or 12 fungicide. Follow label
application methods and timing.
0.5
One soil and two foliar applications allowed by either ground or
chemigation application equipment (including drip irrigation). Do
not use in water used for hand trans- planting. Not for use in greenhouse/transplant
house.
3
11
8 oz/acre
11 to 15.4 fl oz/acre
7
1
0.5 Maximum 3 applications per season. Apply as a protective spray at
10 to 14 day intervals. Add a surfactant.
4 hr Make no more than one application before alternating with a fungicide
with a different mode of action. Apply no more than2.88 qt per
crop per acre per season. Do not use for gummy stem blight where
resistance to group 11(QoI) fungicides exists.
11 + M05
3.2 pints/acre
1
0.5
Do not apply more than one foliar application before alternating
with a fungicide with a different mode of action. Do not make more
than 4 applications of QoI group 11 fungicides per crop per acre
per year. Do not use for gummy stem blight where resistance to
group 11(QoI) fungicides exists.
Not for Target spot. 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. Do
not use for gummy stem blight where resistance to group 11(QoI)
fungicides exists.
See labels. Rates vary depending on the formulation.
0.5 Apply no more than 50 pints per crop per acre per season. Do
not apply to watermelon fruit when stress conditions conducive to
sunburn occur.
0.5
0.5
Only for Alternaria and gummy stem blight. Make no more than 2
applications before alternating to a different fungicide. Maximum of
4 to 5 applications at high and low rates.
Make no more than 2 applications before alternating to a fungicide
with different active ingredients. Apply no more than 53.6 fl oz per
acre per year.
Not for Target spot. Make no more than two sequential applications
before alternating with fungicides that have a different mode of
action. Apply no more than 80 fl oz per crop per acre per season.
Only for Alternaria and Anthracnose; do not make more than one
application before alternating with a fungicide that has a different
mode of action; must be tank-mixed with contact fungicide with a
different mode of action.
11
5.5 fl oz/acre
14
0.5
Begin applications when conditions favor disease development,
and continue on 5 to 10 day interval. Do not apply more than 22
fl oz per growing season. Alternate with fungicide from different
resistance management group, and make no more than 4 total
applications of Group 11 fungicides per season.
2021 Vegetable Crop Handbook for Southeastern United States
215

Southeastern U.S. Vegetable Crop Handbook - 2021

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