Control of aphids injurious to orchard fruits, Currant , Goosseberry and grape
Quaintance, A.L. Backer, A.C.
Control of aphids injurious to orchard fruits, Currant , Goosseberry and grape - Washington 1920 - 1-48 p. - Fruits United States Department of Agriculture. Farmers Bulletin No. 1128 .
Control of aphids injurious to orchard fruits, Currant , Goosseberry and grape - Washington 1920 - 1-48 p. - Fruits United States Department of Agriculture. Farmers Bulletin No. 1128 .