How does crop rotation contribute to pest management?

How does crop rotation contribute to pest management?

• A. It allows for increased application of the same pesticide each year
• B. It provides a continuous food source for pests
• C. It disrupts pest life cycles by changing host plants
• D. It enhances nutrient availability for pests

Answer: (C)

Crop rotation is a fundamental practice in pest management primarily because it disrupts pest life cycles by changing host plants. By rotating different crops in a specific order, farmers can effectively interrupt the reproductive cycles of certain pests that have adapted to live on particular host plants. For example, if a pest primarily feeds on corn, rotating to soybeans or another crop can significantly reduce the pest population because the food source they depend on is no longer available. This method not only helps in managing pests but also limits the development of resistance to pesticides, as pests that may have become accustomed to a specific chemical used on a single crop are less likely to thrive when their food source is altered. Effective crop rotation can thus create a more diverse agricultural ecosystem, further contributing to sustainable pest management strategies.

Crop rotation is a fundamental practice in pest management primarily because it disrupts pest life cycles by changing host plants. By rotating different crops in a specific order, farmers can effectively interrupt the reproductive cycles of certain pests that have adapted to live on particular host plants. For example, if a pest primarily feeds on corn, rotating to soybeans or another crop can significantly reduce the pest population because the food source they depend on is no longer available.

This method not only helps in managing pests but also limits the development of resistance to pesticides, as pests that may have become accustomed to a specific chemical used on a single crop are less likely to thrive when their food source is altered. Effective crop rotation can thus create a more diverse agricultural ecosystem, further contributing to sustainable pest management strategies.