4. Identify Fruits and Vegetables That Need Fewer
Pesticides |
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Virtually all fruits and vegetables are attacked by insects and
disease-causing organisms, but some crops suffer less insect and
disease damage than others.
Here are some examples of crops that require minimal effort in
controlling insects and diseases.
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If
these crops are started from disease-free seeds or transplants, and
if they are grown on well-drained soils, Midwestern gardeners can
produce acceptable crops without repeated pesticide applications. |
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Other
crops often require more protection with pesticides and are frequently
difficult to grow in the Midwest. Losses will differ somewhat each
season, and so will the amount of pest control needed. Spray only
the crops in your garden that have pest problems, rather than spraying
the entire garden. |
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Also,
specific varieties of some crops will differ significantly in their
ability to withstand attack by insect pests and especially by plant
diseases. Apple varieties, for example, vary considerably in their
susceptibility to apple scab, a common and sometimes devastating fungal
disease. |
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Although
the availability of disease-resistant fruits and vegetables is widely
known, insect-resistant plant varieties have been more difficult to
develop. Therefore, examples of insect resistance in vegetables are
few. Butternut squash is more resistant to the squash vine borer than
other winter squash. Among summer squash, zucchini is the most susceptible. |
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Hybrid
varieties usually offer the best tolerance to diseases and insects.
Commercial hybrids combine such desirable characteristics as uniformity
of plant and fruit type, uniform maturity, disease tolerance, improved
quality, and increased overall vigor. Hybrid plants are usually stronger,
healthier, and more productive than open-pollinated varieties. |
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