| Autor: |
Wilde, W. H. A., McIntosh, D. L. |
| Zdroj: |
The Canadian Entomologist; August 1964, Vol. 96 Issue: 8 p1083-1087, 5p |
| Abstrakt: |
AbstractFoliage 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. communisthan on the oriental seedlings of P. ussuriensisor P. pyrifolia. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
