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P. vastatrix is a vector of sugarcane Fiji disease fijivirus (Brunt et al., 1996) and symptoms of this disease in the crop may indicate the presence of P. vastatrix. Infestation by P. vastatrix also causes leaf deformation and leaf galls in the host crop.
Simmonds (1971) reviewed the attempts at biological control of sugarcane pests. There is a considerable history of biological control for P. saccharicida (Simmonds, 1971) but nothing is recorded for P. vastatrix.
No other control measures against P. vastatrix appear to be recorded.
P. vastatrix is a pest of sugarcane because, with P. saccharicida and P. vitiensis, it is a vector of sugarcane Fiji disease fijivirus. This disease is restricted to the South Pacific, South-East Asia and Madagascar (Pemberton and Charpentier, 1971). Sugarcane planthoppers remain a threat to sugarcane through the transmission of disease, but are currently relatively minor pests.