HomeMy WebLinkAboutThe Goderich Signal-Star, 1987-04-22, Page 39Page 12
Bugs c . easily
destroy your lawn_
such as • carbaryl or diazinon, to the
browned -out patches.
Before applying chemicals, water -the
lawn thoroughly.
Water the treated areas again after apply-
ing the chemical to make sure it reaches the
insects as they move into the thatch layer.
"Best control is achieved in July and
usually, one well -applied treatment is suffi-
cient," she said.
The rate of chemical application for lawn
insecticides can be found on the product
label.
It is important that you apply the correct
amount of chemical on the specified surface
area; .if recommended insecticides are ap-
plied at the correct rate and in the recom-
mended manner, the treatment is not harm-
ful to pets, birds or earthworms.
Remove areas of grass killed by chinch
bugs, and re -seed following chemical
treatment.
White grubs are the larvae of the June
beetle.
They have a soft white body, six legs and a
brownish head.
They are characteristically C-shaped and
develop into an adult while feeding on the
roots of grasses.
The adults feed strictly on the foliage of
deciduous trees.
You may suspect a grub problem if ir-
regular patches of your lawn gradually turn
brown in summer.
Check by digging up a small area of the
lawn; if grubs are present treat brown pat-
ches with an insecticide such as chlorpyrifos
in early-too;;mid-July or in mid-September.
Immediately -following the insecticide ap-
plication, thoroughly water the sod.
Again, it is important that you apply the
correct amount of chemical, according to
the product label, on the specified surface
area.
The young worm -like sod webworm, also
called lawn moth, skeletonize grass blades;
older worms cut the blades off completely'.
They are easily detected by digging into
the ground and turning over a small piece of
sod.
The worms eventually develop into white
moths which can be seen flying up from an
infested lawn — in profusion!
Spray the lawn with carbaryl or di-azinon
as soon as you notice damage.
Do not water the lawn for several days
following a spray for sod webworm.
The rate of chemical application for lawn
insecticides can be found on the product
label.
And by following the procedures recom-
mended by the manufacturer of the
chemical, the treatment is not harmful to
pets, birds or earthworms.
Turfgrass scale insects are a relatively
new lawn pest.
They are tan in color, with a darker stripe
down each side — about five mm in length
and similar in appearance to mealy bugs
and sow bugs.
PHOTO H
LAWN CARE — Once you've treated those brown patches in your lawn with an
effective insecticide, remove the areas of grass killed by lawn pests and then re-
seed, says Horticulturist Ruth Friendship -Keller of the Ontario Ministry of
Agriculture and Food's rural organizations and services branch.
Ontario Ministry of Agriculture and Food).
They can be found crawling onto the tips
of grass blades.
The female turfgrass scale -insect lays cot-
tony masses of pink eggs at the crown of the
turf plant.
The offspring are tiny red larvae, less
than one mm in length and they are active
crawlers.
"They do not appear to be destructive but
they are a nuisance and it is believed that
these pests delay green -up in the spring,"
she said.
Watering is important as a treatment for
this pest; the chemical • control used for
chinch bugs should also help control scale
infestations. 4- '
The rate of chemical application and
recommended procedure can be found on
the product label.
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Fertilizing
helps build
lush weed-
free lawn:
By fertilizing your lawn this spring, you
can give it a fighting chance against weeds_
and disease, says Turf Researcher Nancy
Pierce of the University of Guelph's hor-
ticultural
science department.
Three to five applications of nitrogen fer-
tilizer per growing season is quite common.
Apply the fertilizer in mid-April, late
May, early July and early September and
use no more than one kilogram -of nitrogen
for every,100 square metres of lawn.
"But if you regularly remove grass clipp-
ings when you mow the lawn, higher rates of
nitrogen may be used," she said. ` •
Every five years, submit a soil sample for
analysis and fertilizer recommendations.
Contact your local Ontario Ministry of
Agriculture and Food office or Agri- Food
Laboratories, Unit 1, 503 Imperial' Road,
Guelph, Ont, N1H 6T9 for further informa-.
tion on taking soil samples.
For even application, use a centrifugal
spreader.
'Broadcasting the fertilizer by hand often
causes leaf burn because of uneven distribu-
tion," she said. • , -
Wash the spreader after use,.because fer-
tilizer is corrosive. -