Combining different management operations is the most effective way to control pests. Pesticides which are commonly used may cause many problems. Firstly, the chemicals in the pesticides may build up as residues in the environment and in the soil which absorbs the chemicals. This reduces the quality of farm product. Secondly, pests can gradually become resistant to pesticides. This means that newer and stronger ones have to be developed. Lastly, some pesticides affect non target plants and animals such as fish and bees. This affects the ecology and environment as well. Understanding of ecology of an area helps a lot in pest control. Therefore, integrated pest management is a safe and more effective option to fight pest in agriculture and livestock. Secondly, pests can gradually become resistant to pesticides. (paragraph 3). The word resistant in the sentence above means …

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Combining different management operations is the most effective way to control pests. Pesticides which are commonly used may cause many problems.

Firstly, the chemicals in the pesticides may build up as residues in the environment and in the soil which absorbs the chemicals. This reduces the quality of farm product.

Secondly, pests can gradually become resistant to pesticides. This means that newer and stronger ones have to be developed.

Lastly, some pesticides affect non target plants and animals such as fish and bees. This affects the ecology and environment as well. Understanding of ecology of an area helps a lot in pest control.

Therefore, integrated pest management is a safe and more effective option to fight pest in agriculture and livestock.

Secondly, pests can gradually become resistant to pesticides. (paragraph 3). The word resistant in the sentence above means …

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