Studies on yellow grub disease in some freshwater fishes

The present study was carried out to investigate one of the most important economical parasitic diseases of Tilapia species in Egypt. As yellow grub disease leads to great losses in such fishes as well as the public health importance of the disease which number and distribution were collected from Nile branchesSharkia gorvernorate ) in the same year. The results obtained revaled the followings : l-The external examination of naturally infested fishes revealed .no pathognomonic sign for such disease. It wa