Spined or Horned Galls on Oaks in Florida Induced by Gall Wasps, Callirhytis quercusclaviger (Ashmead) and Callirhytis cornigera (Osten Sacken)
From Entomology Circulars.
Callirhytis quercusclaviger (Ashmead) causes the “spine-bearing potato gall” on laurel oak, Quercus laurifolia Michx., in Florida (Ashmead 188i). The horned oak gall, caused by Callirhytis cornigera (Osten Sacken), occurs on water oak, Quercus nigra L., …read more
Oriental Chestnut Gall Wasp, Dryocosmus Kuriphilus Yasumatsu
From Entomology Circulars.
The oriental chestnut gall wasp, Dryocosmus kuriphilus Yasumatsu, threatens the chestnut industry in southeastern United States. The wasps form galls in American chestnut, Castanea dentata (Marsh.) Bork., Chinese chestnut, C. mollissima Bl., and Japanese chestnut, C. …read more
