The application of pesticides to control an invasive species is an example of
a. mechanical control
c. biological control
b. chemical control
d. all of the above

The use of pesticides in order to control the invasive species is an example of chemical control. The uses of the pesticides include the control of diseases, weeds, and pests. Although application of chemical control is not always essential but they improve the quality of the products.

Pesticides are chemicals, and thus their use as a method of control of invasive species, is an exmaple of chemical control. The pesticides may be fungicides, herbicides, or insecticides. The selection of a particular pesticide depends upon the population of pests, their age, stage of growth, selection of a particular species, and environmental conditions.

The answer is option a