| A: | Bacillus thuringiensis - Nematodes |
| B: | Trichoderma - Root fungi |
| I: | Lady birds: Aphids |
| II: | Dragon fly: Mosquito |
| III: | Trichoderma: Fungicide |
| Statement I: | Biocontrol methods are highly effective at eradicating all pests from agricultural fields, thus eliminating the need for chemical pesticides. |
| Statement II: | Biocontrol methods promote biodiversity by allowing beneficial organisms to thrive while controlling harmful pests. |
| 1. | Statement I is correct; Statement II is correct. |
| 2. | Statement I is correct; Statement II is incorrect. |
| 3. | Statement I is incorrect; Statement II is correct. |
| 4. | Statement I is incorrect; Statement II is incorrect. |
| Statement I: | Bacterial infection by Bacillus thuringiensis can kill only caterpillar larvae. |
| Statement II: | B. thuringiensis cannot kill adult moths. |
Which one of the following is an example of carrying out biological control of pests/diseases using microbes?
1. Trichoderma sp. against certain plant pathogens
2. Nucleopolyhedrovirus against white rust in Brassica
3. Bt-cotton to increase cotton yield
4. Ladybird beetle against aphids in mustard
Baculoviruses can play an important role in overall Integrated Pest Management in an ecologically sensitive area because:
| 1. | They are effective against a large number of insects |
| 2. | Their use can help in the conservation of beneficial insects |
| 3. | They do not have any adverse effects on human health |
| 4. | They are cost-effective and can be easily applied as sprays by the farmer |