NEETZoologyMicrobes in Human Welfare
Read the following statements and choose the correct option: 1. Biocontrol refers to the use of biological methods for controlling plant diseases and pests 2. The problems of plant diseases and pests have been tackled by the use of chemicals - by use of insecticides and pesticides 3. Insecticides are used to remove weeds from the soil. 4. The Ladybird, and Dragonflies are useful to get rid of aphids and mosquitoes
Options
- AOnly 1 is correct
- BBoth 1 and 3 are incorrect
- CAll are incorrect
- DOnly 3 is incorrect
Correct answer
D. Only 3 is incorrect
Step-by-step solution
Biocontrol refers to the use of biological methods for controlling plant diseases and pests. The problems of plant diseases and pests have been tackled by the use of chemicals - by use of insecticides and pesticides. Weedicides are used to remove weeds from the soil