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The Scoop on Pesticide Use
And
Alternative Choices
Many birders & wildlife enthusiasts think about
pesticides; they picture pesticides being dumped from crop-dusters or
our local city officials spraying for mosquitos. What most of us
don't think about is that one of the major threats to wildlife is the
chemicals we use right in our own backyards!
The Numbers
According to the Environmental Protection Agency's
(EPA) Office of Pesticide Programs website, more than 4.5 billion
pounds of chemicals are used as pesticides annually in the United
States. Agriculture accounts for three-fourths of conventional
pesticide use, varying from about 600-800 million pounds annually,
depending on weather and other factors. In recent years
non-agricultural use has been steady at about 200 million pounds
annually, with home-owners using 76 million pounds. The professional
market accounts for the remaining 124 million pounds.
Nearly $14 billion was spent in 2003 in the U.S. alone
on pesticides, and the average homeowner spent upwards of $50.00 a
year on these pesticides. There are about 20,700 pesticide products
with nearly 900 active ingredients!
What's the problem?
The problem, of course, is that many pesticides pose a
risk to humans, wildlife, and the environment. Everyone has heard
stories about the negative impacts of pesticides on the environment.
Most recently, pesticides have been identified as a leading factor in
the decline of native pollinators, such as bees, wasps and
butterflies. And, of course, when used improperly or carelessly, they
can pose mild to severe health risks to people and pets.
The dilemma:
Three out of four homeowners use pesticides in their
yard, and many of these pesticides pose a risk to birds and wildlife.
I suspect that many of you who feed birds, squirrels, etc., and plant
flower gardens are also active with landscaping, fruit and vegetable
gardening and lawn care. Pesticides, herbicides and other chemicals
are probably stacked in your garages right next to the feeders and
bird seed.
Points to remember:
First, pesticides, and other chemicals, when used
properly, are critically important. Eliminating these from our
backyards and neighborhoods is unrealistic. In reality, many of these
products are used by wildlife managers and conservationists.
Pesticides and related chemicals do have their place. Our goal should
be responsible use that minimizes damage to the environment. The key
is identifying the pest, choosing the proper control, and making sure
that pesticides are used properly.
Information is essential:
Check the label on any pesticide container and you
will find lots of information about its proper use. There are usually
clear and specific guidelines about wildlife impacts, such as not
using the product near streams or waterways where fish and other
aquatic organisms might be impacted. Following these directions is
essential. Improper and careless use of pesticides is one of the
leading reasons for damage to the environment and health threats to
people and wildlife. If you use professional pest control services in
your yard or home, talk to your service about health and wildlife
concerns. Don't hesitate to tell these people that you are concerned
about wildlife, and point out certain parts of your yard that are
maintained for that purpose.
Alternatives to chemicals:
Many common pest issues can be handled effectively
without chemicals. Mosquitos, for example, can be managed by
eliminating standing water where they can breed. Think about things
like old dog dishes, plant pots and empty garbage cans when
eliminating places for water to stand, especially during the rainy
season. Some common shrub and vegetable pests can also be controlled
by hand with mild solutions of soapy water. Simply wiping the plants
with a soapy rag can help eliminate aphids and other insects. The use
of biological control such as ladybugs, praying mantis and other
insect predators can help control insects naturally. Creating an
environment where natural predators are abundant will help keep many
pests at levels that are tolerable.
There are also many organic 'substitutions' for
chemicals that work quite well, listed below are just a few
insecticides we are fond of:
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Insecticidal soap is one of the most
environmentally friendly insecticides. It is made from potassium
salts of fatty aci ds,
and it kills insects both by smothering them and by drying out their
waxy outer skin. Registered for use with 16 different pests
including aphids, mealy bugs, spider mites, psyllids, sawfly larvae,
soft scales, thrips and whiteflies.
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Pyrethrin and soap insecticide for use on
flowers, vegetables, shrubs and ornamentals. Kills insects on
contact yet is gentle on plants. May be used up to day of harvest.
Concentrate is easy to mix with water and is effective
against a broader range of pests than the ready-to-use formula.
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Safer BioNEEM Insecticide and Repellent
kills or repels aphids, beetles, caterpillars, leafminers, thrips,
whiteflies and other pests on fruits, vegetables, flowers and
ornamentals, and around the house.
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Victor Poison-Free Ant Killer kills ants,
roaches, waterbugs, silverfish, centipedes, crickets and spiders but
is safe around pets and kids. Made with mint oil, Victor Poison-Free
Ant Killer is certified poison-free. Works for up to 4 weeks.
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Insecticidal oil for use on fruits, nuts,
evergreens and woody plants to control scale, mites, sooty mold,
white flies and mealy bugs.
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Diatomaceous earth is an odorless powder
made of finely ground shells of fossilized diatoms, which are
fresh-water living organisms. The microscopic edges of the ground
shells are very rough, scratching the outer protective surface of
insects, causing them to dry out and die. It also acts as a barrier
which slugs and crawling insects do not like to cross. Diatomaceous
Earth Crawling Insect Killer kills slugs, ants, millipedes,
centipedes, earwigs, cockroaches and other insects with 48 hours of
contact.
These are just a
few choices that may work for you in your quest for a 'chemical
free' landscape. For a more complete selection of natural or
chemical free controls for your garden check with your local
extension office, they have specialists ready and willing to help
you!
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