Question:  query regarding  a large area used for grazing purpose is largely populated with fly & mosquitoes affecting the hazardous grazing for the cattle  -- searching the controll veasure for the vector [ mosquitoes & flies }
Answer: told him wash the animal body with cutirose solution , after drying the coatof the cattle apply -topicure / charmil over the body coat  it was  the control measure for the animal , biological controll measure of the vector --- take some small pieces of blood stained flash & place in different site of the field , fly & mosquito are aatracted towards the flash - then kill them manually with the help of net , besides, making some  molassas ball mixed with insecticide can be place in different site , where its population is large - the insect & fly will die when they ingest / suck the molasses , the damp area  in the grazing area should be identified &it should be cleand manually, & apply bleeching powder / ddt [ dichloro diphenyl tri chloro ethane ]the area should be exposed to direct sunlight to stop the breeding of flies & mosquitoes