Midwest Vegetable Guide - 2022 - 88

Celery - Horticulture
Sandea (75) (halosulfuron) POST PRE
| 0.5-1.5 oz.
per acre. Apply before, during, or after harvest. Drop nozzles
and using COC or NIS are recommended for applications
after harvest. For first year transplants do not apply sooner
than 6 weeks after fern emergence. Do not exceed 2
applications per crop cycle, or 2 oz. per acre per 12-month
period. Has residual soil activity. Effective on nutsedge. REI:
12-hour. PHI: 1-day. HRAC 02.
Sinbar WDG (80) (terbacil) POST PRE
| 0.621.5
lbs. per acre. Established crowns or direct-seeded crops
only. Do not use on sandy soil or on soil with less than 1%
organic matter. Established crowns: Apply in spring after
cutting fern and prior to spear emergence. May also be
applied after a clean cutting. Seeded crops: At planting spray
activated charcoal at 300 lbs.per acre of actual area treated in
a 1-inch band over the row (equivalent to 15 lbs. per acre of
crop with 20-inch row spacing), then apply Sinbar. Do not
plant other crops within 2 years of application. 8-12 weeks
residual activity. REI: 12-hour. PHI: 5-day. HRAC 05.
Solicam DF (78.6) (norflurazon) PRE
| 2.5-5 lbs.
per acre. Established plantings only. Do not apply within 12
months of planting. Apply preemergence to soil free of weeds
and debris. REI: 12-hour. PHI: 14-day. HRAC 12.
Spartan 4F (sulfentrazone) PRE
| 4.5-12 fl. oz.
per acre. Michigan only - applicators must have a
supplemental label. Apply in spring before crop emerges. Use
low rate on light soil. Do not use on soils with less than 1%
organic matter. Do not exceed 1 application and 12 fl. oz. per
acre per season. REI: 12-hour. PHI: 14-day. HRAC 14.
Stinger (3) (clopyralid) POST
| 8-10.7 fl. oz. per acre.
Apply before or during harvest. May cause some crooking of
spears. Controls Canada thistle, marestail, mayweed,
nightshade, plantain, smartweeds. Do not exceed 10.7 fl. oz.
per acre per year. Avoid application 2 years in succession.
REI: 12-hour. PHI: 2-day. HRAC 04.
trifluralin products (trifluralin) PRE
|
Established plantings only. Use 4EC formulations at 2-4 pts.
per acre. Use 10G formulations at 10-20 lbs. per acre. Use
lower rates on coarse soils. Apply and incorporate 1-2 inches
early in the spring when spears are at least 4 inches below
soil surface. See product label for split application
instructions. 4-6 weeks of residual activity. REI: 12-hour.
HRAC 03.
Celery - Horticulture
Major update by Ben Phillips, Liz Maynard, Ben Werling -
Oct 2020
Reviewed by Liz Maynard - Aug 2021
Crop Description
Commercial celery (Apium graveolens) production in the
United States began in Michigan in the 1800s. Numbered
commercial varieties are maintained by a small breeding
effort supported directly by the largest growers of the
commodity. Other seed sources are available for smallerscale
growers, and include bushier thin-stalked types, and
taller thick-stalked types. The standard green varieties can be
blanched to maintain a lighter white color of the inner stalks
through soil-hilling or by dense plant spacing. There are also
red varieties. Seeds are produced in the second year of
production if plants are overwintered under mulch.
Planting and Spacing
Celery seed is small and difficult to germinate, thus all
commercial celery is planted from greenhouse-grown
transplants produced in plug trays using peat-based media.
Allow 8 to 10 weeks for transplant production.
In early February, seeds are sown in greenhouses and are
ready for transplanting to the field in about eight weeks.
Transplanting begins 6 to 8 weeks before last frost, and ends
6 to 8 weeks after last frost. Schedule planting so that a
uniform quantity of celery is ready to harvest every week.
Using transplants instead of direct seeding ensures uniform
stands and faster maturing crops. Often, succession plantings
are started every three weeks.
Harden off transplants by reducing water, not temperature.
Celery is a cool-season crop that produces best at
temperatures of 60° to 80° F. Plants can withstand light
frosts, but prolonged frosts below 28° F will cause damage.
Plants may form seed stalks (bolt) if exposed to temperatures
below 55° F for 7 days or longer.
Traditionally, celery has been grown on muck soils, but it can
be grown on coarse-textured mineral soils. Regardless of soil
type, high fertility and moisture are necessary for tender
succulent stalks.
Rotate celery with crops such as onions or corn whenever
possible to avoid building up pests in the soil. At the end of
the season, consider planting a winter cover crop of barley or
rye to reduce erosion and add active organic matter to the
soil.
Typical spacing for celery is rows 2 feet apart with plants 6
inches apart in row. One plant per square foot.
88
Midwest Veg Guide 2022
Midwest Vegetable Guide - 2022

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