Which of the following can be controlled by using biopesticides?

Step-by-step solution

Biopesticides are pesticides of biological origin, which may be of various types depending upon the types of pests killed or controlled by them, e.g., algicides, fungicides, bacteriocides, herbicides or weedicides, insecticides, nematicides and rodenticides, etc. These were initially employed to protect crop plants against pests but they are non-equally important for destroying or controlling vectors for various animals and human pathogens, thus, can be used for controlling various diseases also.