What are crop pests? Suggest preventive measures to control pests.
What are crop pests? Suggest preventive measures to control pests.
Crop's pest is any destructive organism which causes great economic loss by destroying crop plants or products obtained from them.
These can be controlled by the use of pesticides or biocides which includes insecticides, weedicides and fungicides. These chemicals are sprayed on crop plants or used for treating seeds and soil.
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What is the difference between collenchyma and sclerenchyma?

Explain the following:
How many centres have been established in India for artificial insemination of cows and buffaloes?
Define meristematic tissue? Write down characteristics of meristematic cells.