COMPARISON STUDIES ON THE POPULATION DYNAMIC OF Panonychus citri (MCGREGOR) INHABITING CITRUS TREES AT ASSUIT AND KAFR EL-SHEIKH GOVERNORATES

It was observed that the highest rate of numerical density for citrus red mite P. citri (McGregor) in September at Kafr El-Sheikh, where the injury in the summer months and then gradually less in the winter months. It was found that the most common variety of municipal Balady orange citrus susceptible to this species followed by lemon while the less sensitive for infection was Mandarein . Numerical density rate of the mite species P. citri more at Kafr El-Sheikh than the numbers of this species at Assiut.