No CrossRef data available.
Published online by Cambridge University Press: 31 May 2012
Foliage feeding by the pear psylla suppressed root development in seedlings of Pyrus communis, P. ussuriensis, and P. pyrifolia. Reduction in the size of the root system was greatest in seedlings with the heaviest infestations. Psyllid populations were established more readily on seedlings of P. communis than on the oriental seedlings of P. ussuriensis or P. pyrifolia.