Midwest Vegetable Guide - 2022 - 92

Celery - Diseases
Late Blight of Celery - Septoria Fungus
Late blight (Septoria leaf blight) include irregularly-shaped
brown spots on leaves with pycnidia similar in appearance to
grains of ground black pepper. Over time, these leaf spots
expand and cause the entire leaf to die. May be seedborne.
Non-Pesticide
Use disease-free seed. Hot water seed treatment may reduce
this seedborne disease. Use temperatures and times of 118 F
for 30 minutes for celery. Rotate to non-host crops for 2
years. Varieties with partial resistance are available. Prompt
destruction of the finished crop with tillage to rapidly
breakdown tissue is an important method to prevent disease
build-up.
Pesticide
azoxystrobin products (azoxystrobin) | Products include
AzoxyStar, AframeTM , Satori Fungicide , Gold Rush,
Dexter SC, Quadris Flowable, Acadia 2 SC, Heritage,
Tetraban Fungicide, Willowood Azoxy 2SC. See product
labels for various rates. REI: 4-hour. PHI: 0-day. FRAC 11.
Cabrio EG (20) (pyraclostrobin) | 12-16 oz. per acre. Do
not apply more than 0.8 lb a.i. pyraclostrobin (64 oz. Cabrio)
per acre per season. Do not make more than two (2)
sequential applications of Cabrio before alternating to a
labeled non-Group 11 fungicide with a different mode of
action. REI: 12-hour. PHI: 0-day. FRAC 11.
Catamaran (potassium phosphite, chlorothalonil) | 4-5 pts.
per acre. REI: 12-hour. PHI: 7-day. FRAC 33, FRAC M05.
chlorothalonil products (chlorothalonil) | Several
formulations of chlorothalonil (Bravo, Echo, Equus) are
labeled at various rates. See label for directions. REI: 12hour.
PHI: 7-day. FRAC M05.
Evito (3.98SC) (fluoxastrobin) | Rate depends on
formulation. Also available as Tepera and Aftershock. Do not
apply more than 4 applications per acre per year, with a
minimum re-treatment interval of 7-day between applications
REI: 12-hour. PHI: 3-day. FRAC 11.
Flint Extra (4.05) (trifloxystrobin) | 2.5-2.9 fl. oz. per acre.
Maximum application volume: 30-gallons per acre. REI: 12hour.
PHI: 0-day. FRAC 11.
Fontelis (1.67SC) (penthiopyrad) | 14-24 fl. oz. per acre.
REI: 12-hour. PHI: 3-day. FRAC 07.
Luna Sensation (fluopyram, trifloxystrobin) | 4-5.8 fl. oz.
per acre Apply using ground, aerial or chemigation
equipment. Apply at the critical timings for disease control.
Refer to university and/or extension guidelines for best
application timings. Continue as needed on a 14-day interval.
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Do not apply more that 15.3 fl. Oz. of Luna Sensation per
acre per year. Do not make more than 2 sequential
application of Luna sensation or any group 7 or group 11
containing fungicide before rotating with fungicide from a
different Group. REI: 12-hour. PHI: 7-day. FRAC 07, FRAC
11.
Merivon (fluxapyroxad, pyraclostrobin) | 4-11 fl. oz. per
acre. REI: 12-hour. PHI: 1-day. FRAC 07, FRAC 11.
Pristine 38WG (boscalid, pyraclostrobin) | 10-15 oz. per
acre. REI: 12-hour. PHI: 0-day. FRAC 07, FRAC 11.
propiconazole products (propiconazole) | 4 fl. oz. per acre.
PropiMax EC and Tilt are labeled. REI: 12-hour. PHI: 14day.
FRAC 03.
Quadris Opti (SC) (azoxystrobin, chlorothalonil) | 2.4-3.7
pts. per acre. REI: 12-hour. PHI: 7-day. FRAC 11, FRAC
M05.
Quilt (SE) (azoxystrobin, propiconazole) | 14 fl. oz. per
acre. Other formulations include Cover XL, MiCrop
Fungicide, AFrame Plus, Avaris 2XS, Quilt Xcel. See label
for directions REI: 12-hour. PHI: 14-day. FRAC 11, FRAC
03.
Reason 500SC (4.13) (fenamidone) | 8.2 fl. oz. per acre.
REI: 12-hour. PHI: 2-day. FRAC 11.
Rhyme (2.08SC) (flutriafol) | 5-7 fl. oz. per acre. Apply
preventively or when conditions are favorable for disease
development. Do not apply more than 4 applications per year.
REI: 12-hour. PHI: 7-day. FRAC 03.
Switch 62.5WG (cyprodinil, fludioxonil) | 11-14 oz. per
acre. Make no more than two applications of Switch 62.5
WG. Another formulation, Alterity 62.5 WG, allows up to 56
oz. per acre of Alterity 62.5 WG per year. REI: 12-hour. PHI:
0-day. FRAC 09, FRAC 12.
Topguard EQ (SC) (flutriafol, azoxystrobin) | 6.0-8.0 fl.
oz. per acre. Not a single application may exceed 8 fl. Oz. of
product per acre. Do not apply more than 4 applications per
year. REI: 12-hour to 3-day. PHI: 0-day. FRAC 03, FRAC
11.
Nematodes
Pesticide
K-PAM HL (5.8L) (metam potassium) | 30-62 gals. per
acre. Use high rates on muck, and lower rates on sands. In the
fall, when soil at 6 inches is above 50 F and moist, place KPAM
HL or Sectagon K54 about 8 inches beneath the surface
through shank-injectors, or broadcast sprayers directly in
front of tillage tools to bury it. Seal with soil packing or
irrigation. Or, in the spring, it can be applied through drip
irrigation under unperforated plastic beds. Before planting,
Midwest Veg Guide 2022
Midwest Vegetable Guide - 2022

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