Fig. 6

Effect of acquisition access period (AAP) and inoculation access period (IAP) on transmission efficiency of APV1 by P. cryptus. a and b The transmission rates were determined by RT-PCR following various AAPs and a 72 h IAP or following a 72 h AAP and various IAPs. In both panels, the line indicates the model-predicted probability of transmission, and the points indicated the proportion of positive plants at each time point, and the line indicates the positive rate of plants predicted by the Michaelis–Menten model. Sample size n = 15 for each time point. Each betel palm seedling was inoculated by five 3rd instar P. cryptus