Question

Which of the following is used in organic farming?
A) Antibiotics
B) Growth hormones
C) Synthetic pyrethroids
D) Microbial culture

Answer 1

Organic farming is a type of farming technique which is used to overcome the problems faced generally during agricultural practices .It is defined as the mode agricultural practices by using fertilizers which have organic origin such as organic compost, manure and bone meal.

Complete answer:
Organic farming uses products of Synthetic pyrethroids which came to be utilized to enrich the fertility of the soil, to have control over the pest which generally destroy the yield .Synthetic pyrethroids are used as insecticides in the form of spray , repellent and more .They disrupt the nervous system of the pest which will weaken the motor activity of the pest .This compound can kill most of the pests such as ants, roaches, pantry pests, bugs and more .Antibiotics are not used in organic farming so are microbial culture, and also not growth hormones .These are used in biological farming not in organic farming .

Therefore, the correct answer is Option ‘C’.

Note: Pyrethroids are main components of plant insecticide .The following characters make them very much useful and popular among insecticides .They are less toxic to mammals and birds and are highly toxic to fish, they are very much reactive .They are not soluble in water and thus bind to soil tightly without penetrating into the solid, therefore they don't have any effect on underground pests.