Multiple choice

Which of the following is a set of organisms with bioherbicide property?

  1. Crotalaria juncea, Trifolium alexandriunum, Medicago sativum

  2. Azolla pinnata, Trifolium alexandriunum, Chrysolina beetles

  3. Metarhizium flavoride, Medicago sativum, Crotalaria juncea

  4. Cactoblastes cactorum, Chrysolina beetles, Metarhizium flavoride

  5. Trifolium alexandriunum, Cactoblastes cactorum, Azolla pinnata
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cactoblastes cactorum feeds upon Opuntia, and has controlled the spread of Opuntia in India and Australia. Chrysolina beetles have overcome the problem of Klamath weed (Hypericum perforatum) in USA. Spores of Metarhizium flavoride are used in killing the locusts.

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