What are the advantages and disadvantages of using weed control herbicides?

1) BENEFITS: reduce the cost of manual labor,
2) reduce the number of competitors of cultivated plants,
3) increase productivity.
4) DISADVANTAGES: poisonous to animals, beneficial insects and humans,
5) expensive production,
6) act only on annual weeds, and perennial rhizomes remain,
7) with repeated use, weeds develop resistance.

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