High population densities of the citrus nematode can result in severe damage on the citrus tree. Some above ground symptoms can be observed such as suppression of citrus tree growth, lack of vigor or decline symptoms, yellowing of foliage and small size of fruit. The young adult females penetrate into the cortex cells, become sedentary and form multiple‘nurse’ cells. The nematode feeding from these nurse cells reduces the amount of water and nutrients available to the growing plant.
