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El
Toro Zoysia
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Traffic
Tolerance |
Shade
Tolerance |
Drought
Tolerance |
Maintenance |
Dormant
In Winter |
|
Good |
Good |
Excellent |
Medium |
Yes |
El
Toro Zoysia is a patented zoysia variety developed by
Dr. Victor B. Youngner at the University of California-Riverside.
It has a medium width leaf blade similar to Meyer Zoysia
(Z-52), however it has a far superior establishment rate.
Its aggressive lateral growth and ability to recover
from injury, makes it an ideal selection for shaded high
traffic areas on golf courses, home lawns and athletic
fields where bermuda grass isnt suitable. It has
a dark green color, excellent shade tolerance and requires
less fertilizer and mowing than bermuda grass. It is also
much more drought tolerant than Meyer Zoysia making it
an excellent choice for low maintenance areas. It can
tolerate mowing heights from ½ inch to 3 inches. This
is an excellent all-around turfgrass with many practical
uses for golf courses, home lawns, and utility turf areas.
It is only available through licensed producers and can
be established from sod or sprigs.
El
Toro Zoysia Maintenance & Calendar
This calendar of suggested
management practices is designed to
assist you in the seasonal
care of your lawn. Location,
terrain, soil type and condition,
age of the lawn,
previous lawn care, and other
factors affect turf performance.
For these reasons,
the following management practices
and dates should be adjusted to
suit your
particular home lawn conditions.
March
through May
Mowing
Mow
the lawn when it turns green in the
spring using a reel mower set at
3/4 to I inch or a rotary mower set
as low as possible without scalping
the lawn. Mow before the grass
grows taller than 1 1/2 to 2
inches. Recycle nutrients by not
collecting clippings unless they
are unsightly or in clumps.
Fertilization
Apply 1/2 pound of nitrogen per
thousand square feet 3 weeks after
the grass turns green. In absence
of a soil test, use a complete
(N-P-K) turf-grade fertilizer with
a 3-1-2 or 4-1-2 ratio (for example
12-4-8 or 16-4-8). Submit a soil
sample to determine nutrient
requirements, if you havent
already done so. (Contact your
county Cooperative Extension agent
for details.) Apply lime if
suggested.
To
determine the amount of product
required to apply 1/2 pound of
nitrogen per 1,000 square feet,
divide 50 by the first number in
the fertilizer radio. For example,
for a 5-5-15 fertilizer, divide 50
by 5. The result is 10 pounds of
product per thousand square feet.
Irrigation
Water
to a soil depth of 4 to 6 inches.
Probe with a screwdriver to
determine moisture depth.
Zoysiagrass needs a weekly
application of 1 to 1 1/4 inches of
water. On sandy soils, it requires
more frequent watering. For
example, some sandy soils need 1/2
inch of water every third day. (It
takes 620 gallons of water to apply
1 inch of water per thousand square
feet.) Because clay soils accept
water slowly, irrigate these areas
until runoff occurs; wait half an
hour until the water has been
absorbed, and then continue
irrigating until the desired depth
or amount is obtained, Foot
printing, and wilted, folded, or
curled leaves indicate that it is
time to water. Proper irrigation
may prevent or reduce pest problems
and environmental stress later in
the summer.
Weed
Control
To
control crabgrass, goose grass, and
foxtail, apply pre-emergent
herbicides by the time the dogwoods
are in full bloom. Apply post
emergent herbicides in May as
needed to control summer annual and
perennial broadleaf weeds, such as
knotweed, spurge, and lespedeza.
Products
containing two or three broadleaf
herbicides are usually more
effective in controlling several
different broadleaf weeds in a
lawn. Be sure the product is
labeled for use on zoysiagrass.
Apply only if weeds are present and
wait until 3 weeks after the grass
turns green. (See Cooperative
Extension Service publication
AG-408 Pest Control Recommend for
Turfgrass Managers.)
Insect
Control
Check
for white grubs and control them if
necessary. (See Cooperative
Extension Service publication
AG-366 White Grub Control in Turf)
Thatch
Removal
Vertically
mow (power rake) after the grass
turns green to remove thatch if it
is more than 1/2 inch thick. Do not
attempt to remove too much thatch
at one time because zoysiagrass has
a slow recovery rate. It may take
several years to get thatch under
control.
Renovation
Replant
large bare areas using sod or plugs
planted on 6- or 12-inch centers.
(See Cooperative Extension Service
publication AG -69, Carolina Lawns)
Apply a pre-emergent herbicide that
does not interfere with root growth
after plugging to help prevent weed
encroachment. Crabgrass, goose
grass, dallisgrass, nutsedge,
annual sedges, and sandbur can be
controlled with post emergent grass
control herbicides. Two or three
applications 7 to 10 days apart are
required for effective control.
Zoysiagrasses are sensitive to
these compounds, so select the
application carefully.
June
through August
Mowing
Follow
the March-May mowing guidelines.
Fertilizer
Apply 1/2 pound of nitrogen per
thousand square feet in late June
or early July and repeat in
mid-August using March - May
fertilizer guidelines.
Irrigation
Follow
the March-May irrigation
guidelines.
Weed
Control
Apply
post emergent herbicides as needed
to control summer annual and
perennial broadleaf weeds, such as
knotweed, purge, and lespedeza. Do
not apply post emergent herbicides
unless weeds are present, grass is
actively growing, and the lawn is
not suffering from drought stress.
(See Cooperative Extension Service
publication AG-408. Pest Control
Recommendations felt Turfgrass
Managers.)
Insect
Control
Follow
the March-May insect control
guidelines. August is the best time
to control grubs because they are
very small and close to the soil
surface.
Thatch
Removal
Vertically
mow (power mow) in June using the
March-May thatch removal
guidelines.
September
through November
Mowing
Mow
the lawn using the March-May
guidelines.
Fertilization
Fertilize
with 1 pound of potash (K20)2 using
1.6 pounds of muriate of potash
(0-0-60), 2 pounds of potassium
sulfate (0-0-50), or 5 pounds of
sul-po-mag (0-0-22) per thousand
square felt.
To
determine the amount of product
required to apply 1 pound of potash
per thousand square feet, divide
100 by the third number in the
fertilizer ratio. For example, for
a 6-6-12 fertilizer, divide 100 by
12. The result is 8.3 pounds of
product per thousand square feet.
Irrigation
Follow
the March-May irrigation
guidelines. Dormant zoysiagrass may
still need to be watered
periodically when warm, windy
weather prevails.
Weed
Control
Apply
pre-emergent or post emergent
herbicides as needed to control
winter annual and perennial
broadleaf weeds, such as chickweed
and henbit. Pre-emergent herbicides
will not control existing perennial
weeds. Apply post emergent
herbicides only when weeds are
present. (See Cooperative Extension
Service publication ACS-408, Pest
Control Recommendations for
Turfgrass Managers.)
Insect
Control
Follow
the March-May insect control
guidelines.
December
through February
Mowing
Follow
the March-May mowing guidelines.
Zoysiagrass need not be mowed when
dormant.
Fertilization
Do
not fertilize.
Irrigation
Dormant
zoysiagrass may need to be
irrigated periodically to prevent
desiccation, especially when warm,
windy weather prevails.
Weed
Control
Apply
broadleaf herbicides as necessary
to control chickweed, henbit, and
hop clover. Selective herbicides
can be applied in November or
December to control annual
bluegrass (Poa annua) and several
annual broadleaf weeds. Apply post
emergent herbicides only when
weeds are present.
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Topics
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