Increasing the biodiversity of our garden is an excellent defense against pests. Whenever
we simplify an environment by spraying an insecticide or by growing only one
kind of plant, problems can get out of hand. Create an environment that is more
complex by planting a wide range of plants.
Once established,
invasive exotic plants displace our Native plants and are difficult to
eradicate. Depending on the
circumstances and species, eradication methods may involve chemical sprays,
manual removal, biological controls or a combination of these methods.
The control of
invasive plants is vital to the preservation of our delicate ecosystem and the
survival of many native plants as well. (Over
80% of the world’s plants growth in tropical regions. 1/3 are in peril of extinction.)
Soap-based herbicides dehydrate leaves by cutting through
their protective layer of cutin. These types of organic herbicides work best on
young weeds but are only a temporary setback to well-rooted perennial weeds. To
minimize damage to other plants, spray young weeds when temperatures are above
70 degrees, on a sunny, dry, non-windy day. Be aware that repeated applications
of a product containing acetic acid (which is very strong vinegar). It can lower
the soil's pH, making it more acidic.
Education leads to
awareness.
Research invasive
plants and remove them when possible.
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