Question

Sporeine is primarily a
(a) Herbicide
(b) Pesticide
(c) Insecticide
(d) Mycoherbicide

Answer 1

Sporeine is a commercial biopesticide which is made from Bacillus thuringiensis. The active ingredient in Bacillus thuringiensis is a toxin that binds to a specific site in the midgut of an insect.

Complete answer:
Bacillus thuringiensis was mass produced commercially as a pesticide under the name Sporeine.
Biopesticides are biological control mechanisms that used to limit the propagation of pests, pathogens and weeds with the help of a variety of methods. These biopesticides act as resistances to plant hosts. These control pesticides also act through a variety of mechanisms. Some biopesticides form a barrier around the host to protect the host from being fed on by the pest.
The most widely used biopesticides are the spores of Bacillus thuringiensis. Nicotine was used to control plant beetles as early as the 17th century. Bacillus thuringiensis was isolated from the silkworm in Japan by Shigetane Ishiwata and it was rediscovered in Germany through the flour worm by Ernest Berliner. Sporeine spread in the US in the 1950s and was used as a widespread method for the control of a variety of pests. This began the period of research on Bacillus thuringiensis as a biopesticide.

Therefore, Sporeine is a pesticide.

Note:
Sporeine is a commercial biopesticide which is made from Bacillus thuringiensis. The active ingredient in Bacillus thuringiensis is a toxin that binds to a specific site in the midgut of an insect. Sporeine is mainly used as an agricultural insecticide.
The production of Sporeine dates back to the 20th century and started in the year 1938. The earliest commercial production of Bacillus thuringiensis began in the year of 1938 in France.