Southeastern U.S. Vegetable Crop Handbook - 2023 - 211

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/Material
FRAC
Code
M01
P01
mancozeb + copper hydroxide
(ManKocide)
M1+M3
BACTERIAL LEAF SPOT (XANTHOMONAS)
acibenzolar-S-methyl
(Actigard) 50 WP
P01
fixed copper
(various)
extract of Reynoutria
sachalinensis
(Regalia)
Streptomyces lydicus
WYEC 108
(Actinovate AG)
BACTERIAL FRUIT BLOTCH (ACIDOVORAX)
fixed copper
(various)
M01
acibenzolar-S-methyl
(Actigard) 50 WP
BACTERIAL WILT (ERWINIA)
NA
P01
See labels
0.5 to 1 oz/acre
0.5
See label. Rates vary depending on the formulation. Start applications
at first bloom; ineffective once fruit reaches full size. Repeated use may
cause leaf yellowing.
Apply to healthy, actively growing plants. Do not apply to stressed plants.
Apply no more than 8 oz per acre per season.
NA
BELLY (FRUIT) ROT (RHIZOCTONIA)
azoxystrobin
(various)
azoxystrobin + chlorothalonil
(Quadris Opti, Arius Advance)
azoxystrobin + flutriafol
(Topguard EQ)
Bacillus amyloliquefaciens strain
MBI 600
(Serifel)
difenoconazole + benzovindiflupyr
(Aprovia
Top)
extract of Reynoutria sachalinensis
(Regalia)
fluopyram
+ tebuconazole
(Luna Experience 3.3 F)
flutriafol
(Rhyme)
fluoxastrobin
(Evito 480 SC)
thiophanate-methyl
(Topsin M 70 WP, Miromar)
COTTONY LEAK (PYTHIUM SPP.)
metalaxyl
(MetaStar 2 E)
7+3
3
11
17 fl oz/acre
7 fluid oz/acre
3 to 5.7 fl oz/acre
7
1
0.5
APPLY ONLY TO WATERMELON. Make no more than 2 applications
before alternating to a fungicide with different active ingredients. Do not
rotate with tebuconazole. Not labeled for use in Louisiana.
12 hrs Apply on interval of 30 days. Do not apply more than 4 applications per
year. See labels for watermelon restrictions
0.5
See resistance management for directions on managing disease resistance.
Product may be used with a non-ionic surfactant. For belly rot
control make the first application at the 1 to 3 leaf crop stage. Follow by a
second application 10-to-14-days later.
1
0.5 lb/acre,
10.5 oz/acre
4
4 to 8 pt/treated
acre
0.5
Apply in sufficient water to obtain runoff to soil surface.
P5
0.5 to 1 qt/acre
4 hrs
7+3
8.5 to 13.5 fl oz/
acre
0.5
11
11+M05
NA
See labels
3.2 pints/acre
3 +11 5.0 to 8.0 fl oz/acre
44
4 to 16 oz/acre
NA
1
1
1
NA
4 hr
0.5
0.5
4 hrs
See Insect Control section for Cucumber Beetles.
Make banded application to soil surface or in-furrow application just
before seed are covered.
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.
Preventative application on 5-to-7-day schedule. For multiple applications
refer to the guidelines under resistant management. Do not apply more
than 4 applications per year
See application instruction for in-furrow, drench, shanked-in and injected
applications. Apply a high enough water volume to thoroughly soak soil
through the root zone
For belly rot control, the first application should be made at the 1- to
3-leaf crop stage with a second application just prior to vine tip or 10 to
14 days later, whichever occurs first.
For aerial application use a minimum of 5 gallons of water per acre.
Repeat application 5-to-14-day intervals
BM02
3 to 12 oz/acre
4 hrs.
Reapply every 7-to-14-days. For best results, use with a spreader sticker.
M01
P5
Rate of Material
Formulation
ANGULAR LEAF SPOT (PSEUDOMONAS)
fixed copper
(various)
acibenzolar-S-methyl
(Actigard) 50 WP
See labels
0.5 to 1 oz/acre
2 to 3lbs/acre
Harv.
Reentry
Method, Schedule, and Remarks
See label See label See label. Rates vary depending on the formulation. Repeated use may
cause leaf yellowing.
5
0.5
2
Apply to healthy, actively growing plants. Do not apply to stressed plants.
Apply no more than 8 oz per acre per season.
Maximum application of 17.5 lbs/acre. Start application when plants are
in 2 leaf stage and repeat at 7-to-10-day intervals
0.5 to 1 oz/acre
See label
0.5 to 1 qt/acre
0.5
Apply to healthy, actively growing plants. Do not apply to stressed plants.
Apply no more than 8 oz per acre per season.
See label See label See label. Rates vary depending on the formulation. Repeated use may
cause leaf yellowing.
4 hrs
For aerial application use a minimum of 5 gallons of water per acre.
Repeat application 5-to-14-day intervals
2
Soil surface application in 7 in. band.
2023 Vegetable Crop Handbook for Southeastern United States
211

Southeastern U.S. Vegetable Crop Handbook - 2023

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