Science, asked by pankajjhajhria5331, 1 year ago

What are pests and how are they controlled ?

Answers

Answered by joshihimanshu46
13
they are some unwanted planta which grow with the crops and take the nutrients from the soil and it reaults in slowing the growth of crops.
pesticides are used to control them. ex. DDT
Answered by PsychoUnicorn
15

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Q. What are Pests?

Any destructive organisms that cause great economic damage to destroyinform plants are called pest.

Examples - 3

  • Weeds
  • Insects
  • mites
  • nematodes

Pesticides - It refers to a chemical that is used to kill the pest organisms which includes insecticide and weedicides.

Q. How can be they controlled?

  • By mixing insecticide in soil. e.g., Chlopyriphos.
  • By spraying the contact insecticide. eg, Malathion and lindane.
  • By spraying systemic insecticide. eg, Dimethoate.
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