Aphids injurious to orchard fruits, currants, gooseberry and grape
Quaintance, A.L., Baker, A.C.
Aphids injurious to orchard fruits, currants, gooseberry and grape - Washington 1917 - 1-42 p. - Orchard, Fruits United States Department of Agriculture. Farmers Bulletin No. 804 .
Aphids injurious to orchard fruits, currants, gooseberry and grape - Washington 1917 - 1-42 p. - Orchard, Fruits United States Department of Agriculture. Farmers Bulletin No. 804 .