Author : Preston Walter Mason
Publisher :
Page : 32 pages
File Size : 39,9 MB
Release : 1940
Category : Agriculture
ISBN :
A systematic study of the North American species of the aphid genus Myzus Passerini is presented in this publication. It brings together the known species, listing their hosts and giving their distributions, the locations of their types, and descriptions, drawings, and keys for their separation.
Author : Ellen Kay Miller
Publisher :
Page : 122 pages
File Size : 45,24 MB
Release : 1992
Category : Agriculture
ISBN :
Author : United States. Department of Agriculture
Publisher :
Page : 220 pages
File Size : 12,96 MB
Release : 1941
Category : Agriculture
ISBN :
Author : Marie Foote Heisley
Publisher :
Page : 980 pages
File Size : 32,31 MB
Release : 1929
Category : Afforestation
ISBN :
This publication has been prepared primarily for the use of leaders of young people's forestry clubs. Its purpose is to suggest forestry activities suitable for young people and ways and means of carrying on those activities. Some are suitable only for clubs formed by boys and girls, living on farms or in smaller towns; others are more suitable for young people living in the larger cities.
Author : Ellen Kay Miller
Publisher :
Page : 118 pages
File Size : 44,9 MB
Release : 1992
Category :
ISBN :
Author : U.S. Office of Experiment Stations
Publisher :
Page : 1054 pages
File Size : 12,42 MB
Release : 1941
Category : Agricultural experiment stations
ISBN :
Author :
Publisher :
Page : 1054 pages
File Size : 10,6 MB
Release : 1941
Category : Agriculture
ISBN :
Author : Herbert E. Wave
Publisher :
Page : 44 pages
File Size : 31,20 MB
Release : 1965
Category : Agriculture
ISBN :
Author : Ole E. Heie
Publisher : BRILL
Page : 260 pages
File Size : 32,37 MB
Release : 1993-12
Category : Science
ISBN : 9789004098992
The Macrosiphini of Scandinavia are treated in vol. IV, in the present vol. V and the coming vol. VI, with descriptions and illustrations.
Author :
Publisher :
Page : 1448 pages
File Size : 10,31 MB
Release : 1965
Category : Agriculture
ISBN :
