Which of the following statements is incorrect?

Single-cell protein (SCP) is utilized as a biofertiliser.

The correct answer is Option (3) -Single-cell protein (SCP) is utilized as a biofertiliser.

(1) Most biofertilisers are obtained from microbes: This statement is correct. Biofertilisers are typically derived from beneficial microbes, such as bacteria, fungi, or algae. These microbes play a vital role in enhancing soil fertility and nutrient availability, promoting plant growth, and improving crop productivity. Examples of biofertilisers derived from microbes include rhizobium, azotobacter, and phosphate-solubilizing bacteria.

(2) Baculoviruses are pathogens that attack insects and other arthropods:This statement is correct.The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications.

(3) SCP is used as a source of biofertiliser: This statement is incorrect. SCP, which stands for Single-Cell Protein, refers to the microbial biomass produced through the cultivation of microorganisms under controlled conditions. SCP is primarily used as a source of protein in animal feed and as a potential food source for humans. It is not commonly used as a biofertiliser.

In summary, option (1) is correct, option (2) is correct and option (3) is incorrect as SCP is not commonly used as a biofertiliser, and option (4) is incorrect.