Gunpowder is an insecticide. ……………..

A persistent insecticide is

Paris green was used as a pigment due to unique light green colour but now-a-days it is used as an insecticide. It is prepared by boiling verdigris (basic acetate of copper). Arsenious oxide and acetic acid together. It is

An organochlorine insecticide is

Thurioside is (a) insecticide (b) fungicide (c) antibiotic (d) weedicide

Which is a microbial insecticide ?

An important insecticide is obtained by the action of chloral on chlorobenzene. It is

An exterminator needs to dilute a 25% solution of an insecticide with a 15% solution of the same insecticide. How many more liters of the 25% solution that the 15% solution are needed to make a total of 80 liters of a 22% solution of the insecticide?

Assertion : Agriculture production increased several times after introuduction of DDT . Reason : DDT was first insecticide used on a wide scale .

Select the statements that are incorrect regarding Bt toxin. (1) The toxin is made by the eukaryotic organism (2) The toxin is a protein and insecticidal. (3) they are produced in the active form. (4) The toxin is coded by the cry gene.