Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Microbes in Human Welfare

Question:
Which of the following is not used as biopesticide ?
Options:
Xanthomonas campestris
Bacillus thuringiensis.
Nucleopolyhedrovirus.
Trichoderma .
Correct Answer:
Xanthomonas campestris
Explanation:
Xanthomonas campestris is a bacterium that causes a variety of plant diseases, including "black rot" in cruciferous vegetables and bacterial wilt of turfgrass .B. thuringiensis are resistant to attack by insect pests. Trichoderma species are free-living fungi that are very common in the root ecosystems. They are effective biocontrol agents of several plant pathogens. Baculoviruses are pathogens that attack insects and other arthropods. The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus.