The more important insect and fungus enemies of the fruit and foliage of the apple
By: By A.L. Quaintance ... and W.M. Scott ...
Series: United States. Dept. of Agriculture. Farmer's bulletin -- no. 492; Farmers' bulletin (United States. Department of Agriculture) -- no.492
Publisher: Govt. Print. Off.
Published: 1917
Place of publication: Washington
Language: eng
Number of pages: 48