Hoja Blanca Symptoms Not Observed on Susceptible Rice Varieties in Puerto Rico

Abstract

Although "hoja blanca" is a widespread and destructive disease in rice-growing areas of Latin America, including some of the nearby Caribbean islands, and, although the insect vector is known to be present in Puerto Rico, no symptoms of this disease were observed in experimental rice plantings at three locations here. Up to the present there is no evidence that this disease is present in Puerto Rico, either on rice or on other host species.