Controlling Pests in
the House Lawn and Garden
Excerpted from The Household
Detective Primer: How to Protect Your Children from Toxics in the
Home, written by team of authors from the Children's
Health Environmental Coalition (CHEC)
Problems
with Pesticides
Often the first chance
a child gets to play outside is in a garden or on a lawn. However,
in order to keep these places beautiful and green, we heap on the
pesticides. About 90% of Americans use pesticides, and we use a
lot of them, about 2 billion pounds a year. Unfortunately, pesticides
can cause all sorts of children's health problems. Immediate effects
include nausea, vomiting, seizures, and shortness of breath. Longer
term effects include neurological and reproductive disorders, birth
defects, asthma, and cancer.
These problems are preventable.
We can easily remove pesticides from our homes, both indoors and
outdoors. Using a number of simple strategies, we can have beautiful
lawns and gardens, and relatively pest free homes without endangering
our children.
Did You Know?
· Children
in families that use pesticides are 6.5 times more likely to get
childhood leukemia.
· There
is a correlation between the use of pesticides in the home and childhood
brain cancer.
· Twenty-four
out of the 25 most common pests are only problems because pesticides
have killed their natural predators.
· Nationwide,
47% of households with children under the age of five were found
to store at least one pesticide within the reach of children.
What
You Can Do
An Integrated Pest Management
(IPM) approach is the safest way to control pests. IPM is a sequential
process based on monitoring, prevention, mechanical and biological
controls. With IPM you start with the least toxic step and proceed
to the next step only if the first doesn't control the pest problem.
IPM
Steps
Monitor the situation.
Identify the causes of the problem. Determine what pests eat, where
they are coming from, and what kind of organism you are trying to
control.
Preventive
Medicine
The best way to get rid
of pests is to not attract them in the first place. Cleaning up
after yourself, shutting windows, and taking out the trash regularly
are the keys to keeping pests out of the house.
Just like with people,
a healthy plant is less likely to get sick or be preyed upon than
a weak plant. Plants have defense systems just like animals. Encourage
your plants to protect themselves by keeping them strong and healthy.
Water appropriately.
Be sure to take into account your specific climate. In general,
try to water in the evening, anywhere from 4:00 to 9:00 pm depending
upon where you live. In addition to conserving water, this keeps
plants from getting burnt by the noon sun, which reflects off the
water, or from getting stressed by cold if watered at night. In
order to save yourself time and to stimulate root growth in your
plants, water less frequently but for longer duration. Fungus growing
on your plants is a sure sign that you are over-watering.
Mechanical
Controls
If preventative medicine alone isn't enough, then try some of these
techniques. Get down and dirty. Weed by hand. It is a small sacrifice
compared to the health risks of weeding by spray bottle. You might
even grow to like it. Use mechanical traps to capture pests. Live
traps are a good alternative.
Biological
Controls
If the pests still won't
give in, try recruiting some allies from the natural world. Attract
beneficial insects. Some insects such as praying mantis and ladybugs
will eat the bugs that eat your plants. You can encourage their
presence by not using pesticides, which indiscriminately kill both
good and bad bugs (they aren't good for kids either) and by planting
beneficial plant species. Plants such as daisies, sunflowers, marigolds,
dill, and fennel attract beneficial insects by providing them with
food and a place to lay their eggs.
If all the previous options
fail, it may be helpful to directly add biological control such
as beneficial insects, nematodes, and pathogens. These techniques
should be used sparingly in specific circumstances and under the
supervision of a professional; otherwise they can do more damage
than good.
Least
Toxic Chemical Controls
When all else fails,
it is useful to turn to least toxic chemical controls. Boric acid
is a useful way of controlling ants, cockroaches, grain weevils,
and beetles, as well as many weeds. Although boric acid is much
less toxic than conventional pesticides, it still presents some
health risks. For this reason, use it sparingly and be sure to keep
it away from children.
Sticky traps that attract
insects with pheremones can be very effective. However, be careful
because some sticky traps use conventional toxic pesticides. Numerous
other least toxic chemical controls exist, including diatomaceous
earth, soaps, oils, and growth regulators. When considering these
least toxic chemicals, be sure to check out all the potential health
risks. Use these chemicals only if the previous steps don't work,
and be sure to use appropriate strategies for the specific type
of pest you are dealing with. Be as specific as possible.
Special
Tips for Gardens
Use lots of organic fertilizer,
especially compost. Compost is mother nature's primary fertilizer
choice and she is pretty good at planting gardens. Compost is a
living system of microbes and decaying organic matter. As microbes
continually break down the organic matter, important nutrients are
released slowly and steadily to be used by the plants. The glue-like
waste products of these microbes create a porous soil, which holds
more air and water, helping your plants to breathe and drink.
Don't plant in rows.
Plant with equal space in every direction. Rows were invented to
ease the harvesting of really big crops. In your own backyard this
is less relevant. Try growing your plants equally distant from one
another in all directions. This helps exclude many invasive weeds.
Additionally, this creates a microclimate, which keeps heat in and
retains moisture, the combination which stimulates robust plant
growth.
Use plants suitable to
your specific region. Buy seed (preferably organic) from a company
that harvests seed locally. These seeds have been selected for their
performance within the specific requirements of your local environment.
Use nature's tricks.
Plants have evolved their own pesticides such as caffeine and nicotine.
Dump some chewing tobacco or coffee grounds in your watering can
to make a less toxic pesticidal tea. Apply generously whenever you
water.
To get rid of slugs,
put out a pan of beer. This will lure slugs to a drunken death.
(Note: Don't drink the beer afterwards).
Special
Tips for Lawns
Use a variety of grass
suited to your local area. Call your county extension service to
find out which variety of grass would be most appropriate.
Reduce soil compaction.
To aerate your soil, use earthworms and a garden fork. For bigger
jobs, rent an aerating machine. Remove thatch build up. Thatch is
the layer of decomposing roots, leaves, and stems at the surface
of the soil. Removing this layer allows water and fertilizer to
penetrate down to the roots where they are most needed. Use a thatching
rake or for big jobs, rent a thatching machine. It is most strategic
to do this in the spring or fall when the grass will grow back quickly.
Mow frequently but lightly.
Mowing too low to the ground reduces the amount of green in a lawn,
which reduces its ability to produce food. Mowing too low also causes
a lawn to dry out. Finally, be sure to use a sharp blade to reduce
the stress on the grass.
Special
Tips for the House
Cockroaches
Keep food in airtight
containers and block potential cockroach entry ways. Plug cracks
around baseboards, walls, pipes, sinks, and bathtubs. Repair leaky
pipes and faucets. Try to reduce the amount of standing water in
your house and don't leave out soap bars. Roaches are attracted
to both. If these preventative measures fail, try using a least
toxic chemical control - use a sticky trap or put a light dusting
of boric acid behind and under the fridge, stove, and duct work
and in or along cracks and crevices. Be sure that your kids don't
have access to these areas, as boric acid can be harmful to children
and should be kept out of their reach.
Ants
Locate the place of entry
and squeeze some lemon juice on it. Leave the peel at the entrance.
Ants will also be repelled by chalk, talcum powder, and coffee grounds.
As with cockroaches, plugging cracks, holes, and water leaks is
a good preventative measure.
Flies
Sunny open windows are
a fly's entry way to your house. So close your windows before it
gets sunny. Also try making your own fly paper with yellow paper
and honey. Good old fashioned fly swatters work well too. They also
provide a good upper body work out.
Spiders
Don't kill spiders. They
are the good guys - exterminators at a reasonable hourly rate.
Fleas
If your pets are infested,
wash them well with soap and warm water, and comb them regularly
with a flea comb, disposing of the fleas in lightly soapy water.
Vacuum your house and wash your pet's bedding at least every two
weeks, before the eggs have time to hatch. Empty your vacuum bag
regularly to prevent eggs hatching in your house.
If you are really ambitious,
don't declare nuclear war on the fleas with pesticides; rather practice
guerrilla warfare by using the following acrobatic technique. Place
bowls of lightly soapy water around your house. Then put on a pair
of white socks and walk around. The fleas, attracted to your body's
heat, will jump on your feet. Pluck them off and drop them in the
water.
As a last resort, sprinkle
diatomaceous sparingly into the carpet. Let set for one hour and
then vacuum it up. Wear a mask to prevent breathing in dust. The
diatomaceous earth will cause the fleas to dry up and die.
Make Your Own Insect
Repellent
Sponge or spray on the
following herbal rinse:
2 tbs. Rosemary
1/2
pint boiling water
1. Steep
the rosemary for 20 minutes
2. Strain
3. Allow
to cool
4. Apply
the liquid.
Related Articles:
· Growing
Up On Chemicals
· The
Myth of Safety
· Special
Problems of Pesticide Exposure for Children
· Pesticides
Pose Health Risks for Children
· Guide
to Safer Cleaners
· Protect
Your Children From Harmful Food and Water
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