Southeastern U.S. Vegetable Crop Handbook - 2023 - 295

DISEASE CONTROL
TABLE 3-45. GREENHOUSE DISEASE CONTROL FOR VARIOUS VEGETABLE CROPS (CONT'D)
R. A. Melanson, Extension Plant Pathologist, Mississippi State University; A. Keinath, Plant Pathologist, Clemson University;
A. Cato, Extension Horticulture IPM, University of Arkansas; I. Meadows, Extension Plant Pathologist, North Carolina State University
Minimum Days
Harv.
Crop/Disease
Product 1
cyflufenamid
(Torino)
FRAC
U06
Rate of Material
CUCURBITS - AFTER TRANSPLANTING IN A GREENHOUSE (cont'd)
Powdery mildew
3.4 oz/acre
Reentry
4 hr
Method, Schedule, and Remarks
Not prohibited for greenhouse use. Do not make
more than two applications per year. Do not exceed
6.8 oz of product per acre per calendar year. See
label for other application instructions and restrictions.
Use with caution as resistance has been
reported in NY.
Downy mildew (P. cubensis)
cymoxanil
(Curzate 60DF)
27
3.2 to 5.0 oz/acre
3
0.5
Not prohibited for greenhouse use. Always apply
in a tank mix with the labeled rate of a protectant fungicide.
Do not exceed 30 oz of product per 12-month
period. Curzate is not registered for use in LA.
Resistance has been observed.
Alternaria leaf blight and
spot (A. cucumerina and A.
alternata), gummy stem blight
(Stagonosporopsis spp.2
),
powdery mildew (P. xanthii,
G. cichoracearum) 2
Alternaria leaf blight and spot (A.
cucumerina and A. alternata),
anthracnose (C. orbiculare),
Cercospora leaf spot (C.
citrullina), gummy stem blight
(Stagonosporopsis spp.2
),
powdery mildew (P. xanthii, G.
cichoracearum 2
blights (S. cucurbitacearum)
Alternaria leaf blight and spot (A.
cucumerina and
A. alternata), anthracnose
(Colletotrichum spp.), downy
mildew (P. cubensis)
Suppression: Phytophthora
blight (Phytophthora capsici)
Alternaria leaf spot (A.
cucumerina), downy mildew (P.
cubensis)
fenamidone
(Reason 500SC)
11
famoxadone +
cymoxanil
(Tanos)
11+27
8 oz/acre
3
0.5
8 to 10 oz/acre
(for diseases listed
under suppression
5.5 fl oz/acre
14
0.5
Not prohibited for greenhouse use. Product
must be tank- mixed with a contact fungicide with
a different mode of action. Do not exceed 32 oz of
product per acre per crop cycle or 72 oz per acre
per 12-month period. Do not make more than one
application of product before alternating with a
fungicide that has a different mode of action. See
label for tank-mixing instructions. Do not exceed four
applications of Tanos or FRAC Group 11 fungicides
per cropping cycle. For suppression of foliar and fruit
phases ONLY of Phytophthora blight.
Not prohibited for greenhouse use. Do not exceed
22.0 fl oz of product per acre per year. Do not make
more than one application of product before alternating
with a fungicide from a different FRAC group.
Do not make more than four applications of FRAC
11 fungicides per season. The minimum interval
between applications is 5 days.
Gray mold (B. cinerea)
fenhexamid
(Decree
50WDG)
17
1.5 lb/acre
(stand-alone)
1.0 to 1.5 lb/acre
(tank-mix)
1
2
0.5
Labeled for cucumbers ONLY. For use in transplant
production and greenhouse production. Do not make
more than two consecutive applications. See label
for additional tank-mixing instructions. Do not exceed
6.0 lb product per acre(transplants) or per acre per
season (greenhouse production).
Products registered for field use may be used on greenhouse crops (but not transplants) unless excluded on the label. Always check the label before applying a
product. Additional products not prohibited for greenhouse use on basil, cucurbits, and lettuce not listed in this table are available.
Former names of diseases and pathogens listed in this table that may be still be listed on fungicide labels are as follows: Acidovorax citrulli (formerly Acidovorax
avenae subsp. citrulli) Alternaria linariae (formerly A. solani and A. tomatophila); Athelia rolfsii (formerly Sclerotium rolfsii); Golovinomyces spp. (formerly
Erysiphe spp.) or Golovinomyces cichoracearum (formerly Erysiphe cichoracearum); Fulvia fulva (formerly Cladosporium fulvum and Passalora fulva); Boeremia
exigua (formerly Phoma exigua); Plectosphaerella cucumerina (formerly Plectosporium tabacinum); Podosphaera xanthii (formerly Sphaerotheca fuliginea);
Stagonosporopsis spp. (formerly Didymella); Xanthomonas leaf spot (formerly bacterial leaf spot); and (Xanthomonas cucurbitae (formerly X. campestris pv.
cucurbitae).
), Septoria leaf
difenoconazole
+ cyprodinil
(Inspire Super)
3+9
0.37 to 0.46 fl
oz/1,000 sq ft
7
0.5
cyprodinil +
fludioxonil
(Switch
62.5WG)
9+12
11 to 14 oz/acre
1
0.5
Not prohibited for greenhouse use. After two
applications, alternate with another fungicide with a
different mode of action for two applications. Do not
exceed 56 oz of product per acre per year. See label
for application limits of active ingredients.
Only allowed for use in the greenhouse on
cucumber. Do not apply more than 80 fl oz of
product per acre per season. Do not apply product
for more than 50% of sprays per crop. See label for
application limits of active ingredients. Make no more
than two consecutive applications per season before
alternating with fungicides that have a different mode
of action.
2023 Vegetable Crop Handbook for Southeastern United States
295
Southeastern U.S. Vegetable Crop Handbook - 2023

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