Apple (Malus spp.), pear (Pyrus spp.) other trees including flowering crab, flowering quince, hawthorn, pyracantha, and mountain ash disorder :
fireblight /
E.K. Wade.

APA Citation

Wade, E. K., University of Wisconsin--Extension. Cooperative Extension Programs. (1977). Apple (Malus spp.), pear (Pyrus spp.) other trees including flowering crab, flowering quince, hawthorn, pyracantha, and mountain ash disorder: fireblight. [Madison, Wis.]: University of Wisconsin--Extension.

MLA Citation

Wade, E. K, and University of Wisconsin--Extension. Cooperative Extension Programs. Apple (Malus Spp.), Pear (Pyrus Spp.) Other Trees Including Flowering Crab, Flowering Quince, Hawthorn, Pyracantha, And Mountain Ash Disorder: Fireblight. [Madison, Wis.]: University of Wisconsin--Extension, 1977.