Match the following columns and select the correct option :
| Column-I | Column-II | ||
| (a) | Dragonflies | (i) | Biocontrol agents of several plant pathogens |
| (b) | Bacillus thuringiensis | (ii) | Get rid of aphids and mosquitoes |
| (c) | Glomus | (iii) | Narrow spectrum insecticidal applications |
| (d) | Baculoviruses | (iv) | Biocontrol agents of lepidopteran plant pests |
| (v) | Absorb phosphorus from soil |
(a) Dragonflies → Get rid of Aphids and mosquitoes.
(b) Bacillus → Biocontrol agents of thuringiensis lepidopteran plant pests.
(c) Glomus → Absorbs phosphorus from soil
(d) Baculoviruses → Narrow spectrum insecticidal application
Ladybird and dragonflies are useful to get rid of aphids and mosquitoes, respectively.
Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes).
Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. The fungal symbiont in these associations absorbs phosphorus from soil and passes it to the plant.
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
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
