Answer:
Biological management of caterpillar refers to the use of living organisms, such as natural predators, parasites, and pathogens of caterpillars, to control their populations and minimize their damage to crops or other plants. This approach is considered an alternative to chemical pesticides, which can have negative impacts on the environment and human health. Biological management can involve introducing or encouraging the growth of organisms that naturally prey on caterpillars, or using biological agents specifically developed for this purpose, such as Bacillus thuringiensis (Bt), a bacterium that produces a protein toxic to caterpillars. Overall, biological management of caterpillar populations aims to reduce their impact on plant productivity and ecological balance in a sustainable way.