14. Use Pest Barriers In Your Garden
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A variety of pest barriers are available for use in the yard and
garden as alternatives to pesticides.
Plant covers were marketed originally as devices that heat the
soil and make earlier planting possible. But these covers have a
nice bonus: used when crops are small, they keep insects away from
the plants.
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To
create your own plant covers, attach muslin to a wooden or wire frame
and set it over the plants. In addition to muslin, other good materials
are vented polyethylene, spun- bonded polyester, point-bonded polypropylene,
and woven plastics. |
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Another
pest barrier is copper sheeting. Place 6-inch-wide copper sheeting
at least 2 inches into the soil around valuable plantings. This barrier
is quite expensive, but it effectively blocks the invasion of slugs. |
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Various
sticky barriers and trapping adhesives are available commercially.
By attaching or applying them around trunks or trees, you can create
a barrier for canker worms and protect individual trees from defoliation
by these particular pests. |
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To
keep cabbage maggots from attacking the roots of cabbage and other
related vegetables, create a screen cone from ordinary window screening.
Shape the screening into a cone, attach it to a piece of wood, and
place it over the plant. This barrier excludes the flies that lay
the eggs from which cabbage maggots hatch. |
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You
can also protect plants from cabbage maggots by encircling the young
plant with a 3-inch-diameter disk of tar paper, foam rubber, or other
study material. It works in a manner similar to that of screen cones. |
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