Southeastern U.S. Vegetable Crop Handbook - 2021 - 297

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
Commodity Disease
Product 1
Tomato -
transplant
production
(cont'd)
Damping off and root rots
(Phytophthora spp., Pythium spp.)
propamocarb
hydrochloride
(Previcur Flex)
FRAC Rate of Material
See label
28
Minimum Days
Harv.
-
Reentry
0.5
Method, Schedule, and Remarks
For pre-seeding and/or seedling treatment
(before transplanting). Do not apply more than
two pre-seeding and/or seedling applications per
cropping cycle. Do not mix with other products.
See label for specific use directions and
maximum use rates. Phytotoxicity may occur if
applied to dry growing media.
Crown and basal rot (Fusarium
spp., Rhizoctonia solani, Sclerotinia
spp.), damping off (Pythium
spp., Rhizoctonia spp.), spots and
blights (Alternaria spp., Cercospora
spp., Phoma spp., Septoria
spp.), Phytophthora blight, powdery
mildew (Leveilula spp. and
Oidiopsis spp.), rots and blights
(Botrytis spp.)
pyraclostrobin
+ boscalid
(Pageant
Intrinsic)
11 + 7
See label
-
0.5
For transplant production for the home
consumer market; not for use on transplants
intended for agricultural production fields. Do
not tank-mix with adjuvants or other agricultural
products. Do not apply more than two consecutive
applications in any crop production cycle or
more than three application to any crop during
a growing cycle. Do not apply to consecutive
crops within the same production structure. Do
not exceed 118 oz product per year to the same
production crop. Product application rates vary
depending on the target disease. See label for
application rates and for additional restrictions
and instructions.
Labels may include: Bacterial
canker, speck, and/ or spot
Streptomycin
sulfate
(Agri-Mycin 50,
Firewall 17 WP,
Firewall 50 WP,
Harbour)
Powdery mildew
triflumizole
(Terraguard SC)
3
2 to 4 fl oz/
100 gal
-
0.5
25
See labels
-
0.5
See labels for restrictions, cautions, application
instructions, and labeled diseases for each
product. Not all products are registered for
use in all states. Check state registration
status prior to use.
For use in commercial greenhouse production
only. For use only as a foliar spray. Can be used
on greenhouse transplants. Do not exceed 16 fl
oz of product per acre per cropping system. Do
not exceed four applications per crop.
Tomato -
after
transplanting
in a
greenhouse
Anthracnose (Colletotrichum
spp.), black mold (A. alternata),
early blight (A. linariae 2
), gray
leaf spot (Stemphylium spp.),
leaf mold (F. fulva 2
), powdery
mildew (L. taurica), Septoria
leaf spot (S. lycopersici), target
spot (C. cassiicola), Botrytis gray
mold (Botrytis. cinerea), powdery
mildew (Oidium spp.)
Botrytis gray mold (Botrytis.
cinerea), powdery mildew (Oidium
spp.)
Labels may include: Alternaria
blight, anthracnose, bacterial
speck and spot, Cercospora leaf
spot, early blight, gray mold, late
blight, leaf mold, Phomopsis,
Septoria leaf spot
Banda de
Lupinus albus
doce
(BLAD)
(Fracture)
copper, fixed
(various)
M01
See label
See
label
BM01 24.4 to 36.6 fl oz/
acre
1
4 hr
azoxystrobin
+ difenoconazole
(Quadris Top)
11 + 3
8 fl oz/acre
0.5
Bacterial speck (Pseudomonas
syringae pv. tomato), bacterial spot
(Xanthomonas spp.)
acibenzolarS-methyl
(Actigard
50
WG)
21
0.33 to 0.75 oz/
acre
14
0.5
Not prohibited for greenhouse use. Product
should be applied to healthy, actively growing
plants. Product should not be applied to stressed
plants. Do not apply on intervals less than 7
days. Do not exceed 6 oz of product per acre per
year. See label for other instructions, restrictions,
and precautions.
Not prohibited for greenhouse use. Do not
use for transplant production. Do not make
more than two consecutive applications before
switching to a fungicide with a different mode
of action. Do not exceed 47 fl oz of product per
acre per year. See label for application limits of
active ingredients. Do not apply until 21 days
after transplanting or 35 days after seeding. Do
not use with adjuvants or tank mix with any EC
product on fresh market tomatoes. Plant injury
may occur with the use of adjuvants or when
product is tank-mixed with dimethoate.
Not prohibited for greenhouse use. Do not
make more than two sequential applications
before alternating to a fungicide with a different
mode of action. Do not make more than five
foliar applications of product per harvest cycle.
See label Some products are OMRI-listed. See product
labels for complete application instructions, specific
crop and disease labels, and greenhouse
usage. Check state registration status prior
to use.
2021 Vegetable Crop Handbook for Southeastern United States
297

Southeastern U.S. Vegetable Crop Handbook - 2021

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