Excessive use of pesticides can be poisonous to many plant and animal species and cause environmental pollution.
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Pesticides are commonly sprayed on crop plants or used for treating seeds and soil.
Summer ploughing involves ploughing fields deep in the summer to destroy weeds and pests by exposing them to high temperatures and sunlight, which can kill them.
Intercropping helps in weed control by creating competition for weeds, making it harder for them to establish and grow.
Preventive methods for weed control include proper seed bed preparation, timely sowing of crops, intercropping, and crop rotation.