Which of the following is a measure for the control of bilharzia?

A measure for the control of bilharzia is the application of molluscicides in water bodies. Bilharzia, also known as schistosomiasis, is a parasitic disease that is transmitted through water snails. These snails release parasitic larvae into the water, which can penetrate the skin of people who come into contact with the contaminated water. Molluscicides are chemicals that are specifically designed to kill snails and their larvae in water bodies, thus preventing the spread of the disease. Other measures, such as cutting low brushes around homes or screening windows and doors with mosquito nets, may help to control other diseases but are not effective against bilharzia. Similarly, the application of herbicides in water bodies is not an effective measure for controlling bilharzia.