The susceptibility of pear leaf and fruit at their early development stages to Septoria pyricola and the chemical control of the disease were studied. Unfolded or fully expanded leaves and young fruit ...

American Journal of Botany, Vol. 55, No. 8 (Sep., 1968), pp. 975-983 (9 pages) Study of the pear leaf cuticle (Pyrus communis L. 'Bartlett'), in both intact and enzymatically isolated forms, has ...

Alias: The pear leaf blister mite, or pear rust mite. This is such a small pest that it is almost pointless to describe the physical characteristics. It is a small (too small to see with the naked eye ...