I believe that chemical lawn care is one of those
things that we will one day look back on in wonder, scratching our
heads in an attempt to understand how we could have done something
that makes so little sense. Not only does the practice of using
chemical fertilizers, pesticides, fungicides and herbicides
destroy the life of the soil which is the necessary ingredient to
healthy plants of any kind, but it is dangerous and deadly to our
children, our pets, the song birds we try to attract to our yard
with bird feeders, our groundwater, our neighbors and ourselves.
And we spend a great deal of time and money in order to accomplish
this.
The Environmental Protection Agency backs this up.
They have banned the use of diazinon on golf courses and sod farms
because of the huge number of birds being killed. They are phasing
out the use of diazinon altogether because of the danger to humans
and wildlife. Do you still have a bag in your garage? Can you
still find it in the stores? Probably yes to both...
A century or so ago only the wealthy had large
lawns. They were taken care of by several gardeners. With the
invention of the lawn mower lawns became accessible to a larger
number of people. They have always been a status symbol in
America. The larger the better. Until World War II and the advent
of petrochemicals, lawns were a mix of grasses and broad leafed
plants. Clover was always included in lawn seed mixes because it
fed nitrogen to the grass. Because of its deep root system it
stayed green during hot dry weather when the grasses went dormant
in many parts of the country. Clippings were left on the lawns to
feed the soil. Over time - primarily because of advertising by the
large lawn fertilizer companies - we began to believe that the
only good lawn was one that had only grass. The way you
accomplished this, we were told, is with herbicides.
Lawn mowers now had bags to remove the grass
clippings. The petrochemical fertilizers we were now using on our
lawns every spring and fall in order to achieve the "perfect
lawn", killed all the micro-organisms and earthworms and other
life forms that maintain the healthy soil needed to grow healthy
plants. With only 3 nutrients being given back to the soil to feed
the grass plants the soil became more and more deficient and
compacted (no earthworms and other soil creatures to keep it loose
and friable). This lead to weak grass plants that were now
attacked by disease and insects and so more chemicals were dumped
on our already stressed lawns to treat these problems. Thatch
builds up where there are no micro-organisms and earthworms and so
our lawns became more and more work to maintain - demanding an
ever increasing amount of chemicals. Large lawn care companies
formed to deal with the burgeoning problem of maintaining the
perfect lawn - now deeply engrained in our culture as a symbol of
status and success.
We are told by chemical companies that the
chemicals used in lawn care products are harmless to anything but
the "weeds" and insects "when used properly". But as scientific
studies have been done on these chemicals, many have been found to
be a serious hazard to human health. One by one they have been
pulled off the market. In the last five years it has come to our
attention that chemicals are tested for their effects on adults -
not on children. Children's smaller bodies and faster metabolisms
react differently to chemicals than adult bodies. And so now the
"approved" chemicals are being re-tested and many are being found
to be harmful to our children.
As I have said several times in previous articles
the process of removing a dangerous chemical from the marketplace
is a long one. You will find these products available at your
local lawn and garden center long after they have been proven
hazardous to your health. This is strictly a profit issue. Stores
that bought supplies of these products can still sell them until
they are gone and not lose money. And the chemical companies
won't lose money. Somehow the profit margin became more important
in this whole process than our health and welfare.
According to a report by the National Academy of
Sciences, residential lawns and gardens receive heavier doses of
pesticides than most other land areas in the United States, as
much as ten pounds per acre of lawn versus two pounds per acre of
soybeans.
"A full 40 percent of pesticides used in the U.S.
mimic hormones in our bodies, causing reproductive disorders and
interfering with fetal development....consider diazinon, one of
the most commonly used home and garden pesticides. One ounce of
diazinon is enough to exceed government aquatic life guidelines
for 94 million gallons of water. This residential chemical has
also killed more birds in the last five years than any other
pesticide. If only 1,000 of us stop using pesticides on our
gardens and lawns, we'll protect the environment from 700 pounds
of toxins each year. "
The following was taken from the World Wildlife
Fund Canada website at:
http://www.wwfcanada.org/satellite/prip/factsheets/whyditch.html
Ten Reason to Stop Using Lawn Chemicals:
Chemical pesticides and fertilizers contaminate
surface and groundwater.
Chemical pesticides threaten the health of
children.
Children are often the most exposed to pesticides
due to their behavior (putting contaminated grass, soil and toys
into mouth, breathing close to the ground).
Chemical pesticides threaten the health of outdoor
pets.
Outdoor pets are highly exposed to lawn chemicals
due to their behaviour (licking contaminated paws and coat,
breathing close to the ground, eating contaminated grass, soil and
toys) and are highly vulnerable due to their small size.
Chemical pesticides threaten the health of local
wildlife.
Turf-dwelling and feeding species such as the
American robin, Canada goose, American widgeon, European starling,
common raccoon and eastern gray squirrel are highly exposed to
lawn chemicals. Granular formulations diazinon and chlorpyrifos
can severely impact birds that mistake the granules for seed or
other food items. Diazinon, a common lawn insecticide, is
associated with large bird kills and is banned for use on American
sod farms and golf courses.
Chemical pesticides and fertilizers reduce the
activity of beneficial organisms.
Healthy soil is alive with a variety of beneficial
organisms that actually kill pest insects, decrease the spread of
disease and help plants gather nutrients and water. For example,
earthworms improve air and water circulation, decompose thatch,
deposit nutrient-rich castings and help to neutralize soil (plants
prefer this pH). Many of these beneficial organisms are highly
exposed and highly sensitive to lawn chemicals. Pesticides and
fertilizers reduce their activity levels, thereby reducing a
lawn's natural ability to control pests and diseases, gather
nutrients and water and maintain overall health.
Chemical fertilizers are a waste of money.
Chemical fertilizers usually contain three
macro-nutrients - phosphorus, potassium and nitrogen. They lack
other macro as well as micro-nutrients and include no organic
matter or microbes. In contrast, finished compost from your
backyard bin is an organic and natural soil amendment which
provides a more complete package of nutrients, organic matter and
microbes. Finished compost is a free resource that also
constitutes sustainable waste management, extending the lifespan
of local dumps and landfills.
Chemical pesticides have the potential to cause
damage throughout their lifecycles.
All stages of a pesticide's lifecycle - production,
transport, storage, use and disposal - have the potential to
degrade environmental and human health. Explosions, spills and
volatilization may occur in manufacturing plants, storage
facilities and en route, exposing potentially huge numbers of
non-target organisms to pesticides. Disposal is an expensive and
controversial proposition as people campaign to keep stockpiles
out of their communities.
Chemicals actually degrade the over-all long-term
health of your lawn and garden.
Chemical lawn care is the wrong approach. By
frequently applying pesticides to your lawn, you may create a
chemical-dependent landscape. As pest species become resistant to
the chemicals designed to kill them, more concentrated doses and
frequent applications are required and a never-ending cycle of
increasing pest resistance and pesticide use is established. When
this happens, your lawn's health is spiraling downhill.
Lawn chemicals are unnecessary.
Historically, organic lawn care has been practiced
for much longer than chemical lawn care and it can easily be
implemented on any lawn. Safe and effective alternatives exist for
most chemical pesticides and fertilizers. There is no need to
expose our families, communities and local wildlife to chemicals
that are known or potential hazards
Sue Pitman gives us the following Hints for
Contracting for Lawn Services:
If you contract for lawn services you need to ask
five questions and evaluate the answers.
* What do you use for fertilizer? The good answers
include seaweed, compost, composted manure, bone meal, blood meal,
cotton seed meal, peat moss.
* How short do you mow? The good answer would
depend on the species but should not be under 2 inches.
* Do you bag the grass clippings? The good answer
is no, they use a mulching mower.
* How do you treat for weeds? The good answer is
creating a healthy lawn. The bad answer is using herbicides.
* What do you do for insect problems? The good
answer is soaps, beneficial insects, antitranspirants,
horticultural oils, baking soda, baits. The bad answer is
pesticides.