An object of the present invention is to provide a novel method of controlling TYLCV whereby the infection cycle of TYLCV can be broken. The present invention provides a novel virus that is not transmitted by an insect vector as a tomato yellow leaf curl virus. The present invention also provides a method of controlling a tomato yellow leaf curl disease and a method of preventing transmission of a yellow leaf curl virus by using a tomato yellow leaf curl virus not transmitted by an insect vector.