Login

what rare pests ? how can plants pests be controlled ?in wht way biopesticides are better than the chemical pesticides ????

plos ans this question this ans fast pls help meritnation expert

thanks

Pests are the organisms that need host for survival.  Pests are generally insects. They destroy crops by the following methods: Sucking the cellular sap from various plant parts

 Cutting the roots, stem, and leaves of plants Boring into stems and fruits  

  Pests can be controlled by ploughing, crop rotation , spraying insecticides and using biological pesticides.  

Biopesticides are better than chemical pesticides as they are biodegradable and less toxic. Biopesticides help in selective eradiacation of pests. Biological method of pest control requires knowledge of the life forms (predator + prey) that inhabit a particular area, their life cycles, and patterns of feeding and preferred habitats. Example  Ladybirds and dragonflies are used to get rid of aphids and mosquitoes. Microbes can also act in the same manner. Bacillus thuringiensis (Bt) is used to control butterfly caterpillars. 

  • 2
View Full Answer
A pest is "a plant or animal detrimental to humans or human concerns (as agriculture or livestock production)" they include organisms that cause nuisance and epidemic disease associated with high mortality (plague).
The ways to control Pests:
  • Chemical crop protection products or “pesticides” help control insects, diseases, weeds, fungi and other undesirable pests.
  • Pesticides comprise a wide range of products for both professional and home applications including insecticides, fungicides, herbicides, sanitizers, growth regulators, rodenticides, and soil fumigants.
  • The use of chemical crop protection in all contexts is highly regulated.
  • The regulatory framework of pesticides encompasses national, regional, and international legislation and conventions that help assure safety for users, consumers and the environment.
  • Neem leaves can be kept along with grains.
  • Storing grains at proper place.
  • Conditions should be fovorable for the grains,where you store it.
  • 1

 Biopesticides are better than chemical pesticides as they contain natural material eventhough it is a slow process whereas chemical pesticides contain chemicals and has a faster process

  • 1

thanks

  • 1
What are you looking for?