Answer :
Alternative methods to protect crops and food from pests based on sound biological principles are Companion planting, Crop rotation, beneficial insects, barriers, and natural pesticides.
1. Companion planting: This involves planting certain crops together to protect each other from pests. For example, planting marigolds near tomatoes can help deter nematodes from attacking the tomato plants.
2. Crop rotation: This involves changing the type of crop planted in a particular area each season to prevent pests from becoming established and causing damage.
3. Using beneficial insects: Certain insects, such as ladybugs and lacewings, can help control pests by eating them. Introducing these beneficial insects to the garden can help keep pest populations under control.
4. Using barriers: Physical barriers, such as row covers or netting, can help keep pests away from the crops.
5. Using natural pesticides: There are a variety of natural pesticides that can be used to protect crops from pests. These include neem oil, garlic spray, and diatomaceous earth.
Overall, there are a variety of alternative methods that can be used to protect crops and food from pests based on sound biological principles. These methods are often more environmentally friendly and sustainable than traditional chemical pesticides.
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