(a) Biological method.
Reduces/suppresses growth of weeds.
(b) Legislative method
Prevents introduction of noxious weeds.
Prevents the spread of foreign weeds from one part of the country to another.
gideon1 answered the question on November 1, 2017 at 08:20
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October 31, 2017
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October 31, 2017
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October 31, 2017
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