Plum curculio
Quaintance, A.L., Jenne, E.L.
Plum curculio - Washington 1912 - 1-250 p. - Plum United State Department of Agriculture. Bureau of Entomology. Bulletin No. 103 .
Plum curculio - Washington 1912 - 1-250 p. - Plum United State Department of Agriculture. Bureau of Entomology. Bulletin No. 103 .