Question

Trichoderma is known

a. To have no adverse effect on crop plants.
b. To be a broad spectrum pesticide.
c. As free living fungi in symbiotic association with roots.
d. To be applied as spray on Brassica leaves.

Select the correct statement.

• A. a, b, & d
• B. a, b & c
• C. a & b
• D. a & c

Answer 1

The correct option is A a, b, & d

• Trichoderma is the most prevalent culturable soil dwelling fungi. It has no adverse effect on crop plants.
• It is used as bio fungicide and control agent for bacteria and fungi. Hence, it is a broad spectrum pesticide.
• It forms symbiotic association with the roots of the plants and is not found free living in the soil.
• The dried spores of Trichoderma are sprayed on Brassica leaves to kill Alternaria that causes blight of mustard.

Hence, statements a, b and d are correct.

So, the correct answer is 'a,b and d'.