Southeastern U.S. Vegetable Crop Handbook - 2023 - 235

DISEASE CONTROL
TABLE 3-20. DISEASE CONTROL PRODUCTS FOR LETTUCE AND ENDIVE (CONT'D)
L. Quesada-Ocampo, Plant Pathologist, North Carolina State University
Disease/Material
LEAF SPOTS (cont'd)
penthiopyrad
(Fontelis)
trifloxystrobin + Fluopyram
(Luna Sensation)
GRAY MOLD
2,6-dichloro-4-nitroaniline
(Botran 5F)
azoxystrobin + flutriafol
(Topguard EQ)
boscalid
(Endura)
penthiopyrad
(Fontelis)
trifloxystrobin + Fluopyram
(Luna Sensation)
7
7 +11
29
1.8 to 3.2 qt/acre
3 + 11 6.0 to 8.0 fl oz/acre
7 to 9 oz/acre
14 to 24 fl oz/acre
7.6 fl. oz/acre
SEED DECAY, SEEDLING BLIGHT, DAMPING-OFF
fludioxonil
12
(Spirato 480FS)
(Maxim 4FS)
POWDERY MILDEW
azoxystrobin
(various)
azoxystrobin + flutriafol
(Topguard EQ)
fluxapyroxad + pyraclostrobin
(Merivon 500 SC)
myclobutanil
(Rally) 40WSP
penthiopyrad
(Fontelis)
quinoxyfen
(Quintec)
sulfur
(various)
triflumizole
(various)
trifloxystrobin + fluopyram
(Luna Sensation)
PYTHIUM DAMPING-OFF
cyazofamid
(Ranman 400SC)
mefenoxam
(various)
metalaxyl
(various)
propamocarb
(Previcur Flex)
4
4
28
See label
See label
2 pt/acre
-
-
2
2
2
0.5
3
7 +11
6 to 8 fl oz/acre
7.6 fl. oz/acre
11
3 + 11
7+11
3
7
13
M02
6.2 to
15.4 fl oz/acre
6.0 to
8.0 fl oz /acre
4 to 11 fl oz/acre
5 oz/acre
14 to 24 fl oz/acre
6 fl oz
See label
1
3
1
0.5
1
0.5
1
7
4 hr
12 hr
Make no more than two sequential applications before alternating with a
fungicide with a different mode of action.
Apply preventatively at a higher rate in 7 days interval. For multiple applications
refer to the guidelines under resistance management.
Make no more than two sequential applications before alternating with
fungicides that have a different mode of action.
For use on lettuce only. Apply when disease first appears and continue on
a 14-day interval.
Begin applications before disease development. DO NOT make more than
two sequential applications before switching to a fungicide with a different
mode of action.
Alternate with a fungicide with a different mode of action.
See label See label Apply at early leaf stage and repeat every 10- to 14-days or as needed.
Do not apply if temperatures are expected to exceed 90°F within 3 days of
application due to the risk of crop injury.
0/20
0.5
12 hr
Applications should begin prior to disease development. Repeat on a 14day
schedule. Do not apply more than 18 fl oz per acre per season.
Apply with ground, aerial, or chemigation equipment. apply at the critical
timings for disease control and continue as needed at 14-day intervals.
Can be applied in a band. 20 PHI for banded applications
21
2.75 fl oz/acre
0.5
Apply on a 7- to 10-day interval when disease first appears or when
conditions favorable for disease development. Do not make subsequent
applications, and limit applications to six per year.
Apply preplant incorporated or surface application at planting.
Banded over the row, preplant incorporated, or injected with liquid fertilizer
Previcur Plus is only labeled for head and leaf lettuce. Various application
methods; see label.
0.08 to 0.16 fl oz
100 lb of seed
14
7
14
3
0/20
12 hr
12 hr
0.5
0.5
12 hr
Post-thinning and established transplants: apply as a basal drench in
50-100 gallons. Do not apply more than 3.2 qt formulated product per acre
per year.
Apply preventatively at a higher rate in 7 days interval. For multiple applications
refer to the guidelines under resistance management.
Begin applications prior to the onset of disease and continue on a 7-day
interval.
Begin applications before disease development. DO NOT make more
than two consecutive applications before switching to a fungicide with a
different mode of action.
Apply with ground, aerial, or chemigation equipment. apply at the critical
timings for disease control and continue as needed at 14-day intervals.
Can be applied in a band. 20 PHI for banded applications
-
12
Used to control diseases of seed such as Aspergillus, Fusarium, and Rhizoctonia,
among others. Does NOT control Pythium or Phytophthora.
7
7 +11
14 to 24 fl oz/acre
7.6 fl. oz/acre
3
0/20
0.5
12 hr
Begin applications before disease development. DO NOT make more
than two consecutive applications before switching to a fungicide with a
different mode of action.
Apply with ground, aerial, or chemigation equipment. apply at the critical
timings for disease control and continue as needed at 14-day intervals.
Can be applied in a band. 20 PHI for banded applications
FRAC
Code
Rate of Material
Formulation
Minimum Days
Harv.
Reentry
Method, Schedule, and Remarks
2023 Vegetable Crop Handbook for Southeastern United States
235
Southeastern U.S. Vegetable Crop Handbook - 2023

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