Three species of aphids on potato, Myzus persica , Aphis gossypii and Aphis fabae Were identified based on morphological and confirmed in the Museum of Natural History/ University of baghdad Potato virus M (PVM) was diagnosed by DAS-ELISA test on potato samples, in terms of the yellow color that appeared in the pits of the positive samples.
The results of laboratory results showed that the aphids are efficient in transport the Potato virus M with an acquisition feeding time ranging between 10-30 seconds.
Two insects/plant are low efficient to transmit the virus then the infection rate increased with the increase in the number of insects feeding on each plant, and the optimum number was 8 insects/plant.While M.persica excelled in transmitting the virus with an efficiency of up to 100%, with an acquisition time of 30 seconds. andAphis gossypii it was efficient in transmitting at the acquisition time of 10 and 30 seconds. Whereas, Aphis fabae recorded the best transmission efficiency at a 30-second acquisition feeding time.