Main symptoms

Significant differences in symptoms are observed depending on the species or variety infected, as well as on the strain considered of papaya ( ringspot virus Papaya ringspot virus , PRSV), which sometimes makes the diagnosis visual. difficult.

In Zucchini, this virus most often causes leaf symptoms strong of mosaic (Figures 1 to 3 and 9 to 11) sometimes very deforming, in fact accompanied by blisters (Figure 4), filiformism (Figure 5). These symptoms can also be confused with those of Zucchini Yellow Mosaic Virus (ZYMV) or severe strains of Watermelon Mosaic Viru (WMV). A silvery coloration of the leaf blade is sometimes observed (Figure 6). 

damage Fruit is also marked: mosaic of blisters which prevent any marketing (figures 7 and 8).