Agriculture

Weeds and their harmful effects

खरपतवार और उनके हानिकारक प्रभाव

In this Class 9 Agriculture topic from “Weed and Pest Management,” students learn what weeds are and why they are harmful to crops. They explore how unwanted plants compete with crops for water, nutrients, sunlight, and space, reduce yield and quality, and interfere with farm operations. The topic also covers how some weeds shelter pests, spread diseases, or harm people and animals. Understanding these effects helps students connect weed identification with timely, safe, and appropriate management practices.