Question

1. give few example of weeds?
2. why weeding is necessary?
3. what are methods of remove weed?
4. Give few examples of weedicides ?​

Answer 1

Answer:

1)some examples of weeds are:grasses,cannabis

2)weeding is necessary becoz it do not allow the crops to grow as it absorbs the water and useful minerals

4)neem extract, glyphosate

3)methids to remove weeds are:

i)using sime weedicides

ii)by using paracites wasps

Answer 2

Answer:

1. clover, dandelion

2. Weeding of plants is necessary because they take up all the water, sunlight and nutrients from the soil that are available for the crops. They are removed manually by a sickle or by using weedicides.

3. Weeds can be removed physically by uprooting them or cutting them close to the ground. Physical removal of weeds is done by using khurpi, trowel, harrow or a seed drill. Chemicals called weedicides can also be used to destroy weeds. Weedicides kill only the weeds and they do not harm the crop plant.

4.Some popular weedicides are: 2,4 - D Ethyl ester, Neem extract, Glyphosate.

Explanation:

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