The aphid Illinoia pepperi is the vector of blueberry shoestring virus, a serious disease of cultivated high bush blueberry. We present a laboratory study of the developmental rate of I. pepperi on excised blueberry leaf discs at different temperatures from 5 to 29°C. Growth rates were lowest at the upper temperature treatments (26 and 29°) and at 10°C. Growth rate and duration in degree-days for each life stage are presented as well as an overall regression equation for development. The lower developmental threshold was calculated at 3.4°C. The results are being used in a phenological management system and an epidemiological model for predicting spread of blueberry shoestring virus.
Elsner, E. A. and Whalon, M. E.
"Developmental Rate and Longevity of Illinoia Pepperi (Homoptera: Aphididae) on Excised Blueberry Leaf Disks,"
The Great Lakes Entomologist: Vol. 18
, Article 6.
Available at: http://scholar.valpo.edu/tgle/vol18/iss4/6