00000nam##2200000za#4500 9.696431 CaOODSP 20210624235030 cr ||||||||||| 150407|1993||||xxc|||||o f|0| 0 eng|d CaOODSP eng n-cn--- A43-1895/1993E-PDF Canada. Agriculture and Agri-Food Canada. Natural enemies of pests associated with prairie crops / [electronic resource] by D. S. Yu and J. R. Byers, Research Station, Lethbridge, Alberta. Ottawa - Ontario : Agriculture and Agri-Food Canada 1993. 32p. photographs "The aim of this book is to help growers, extension workers, district agriculturalists, and the general public recognize the natural enemies of agricultural pests commonly found in the prairie provinces. Colour photographs are used as a means of identification, supplemented with descriptions of relevant aspects of the life histories of the major natural enemies."--Preface. Historical publication digitized by Agriculture and Agri-Food Canada. The catalogue number (A43-1895/1993E) and ISBN (0-662-20908-7) for the print edition have been copied in this electronic publication. The aim of this book is to help growers, extension workers, district agriculturalists, and the general public recognize the natural enemies of agricultural pests commonly found in the prairie provinces. Colour photographs are used as a means of identification, supplemented with descriptions of relevant aspects of the life histories of the major natural enemies.--Preface 12-32-Supp 2012-07-11 Crops gcpds Pests gcpds Yu, D. S. Byers, J. R. Ennemis naturels des ravageurs des cultures dans les provinces des Prairies / (CaOODSP)9.640545 Natural enemies of pests associated with prairie crops / (CaOODSP)9.645214 http://publications.gc.ca PDF 2588 KB https://publications.gc.ca/collections/collection_2012/agr/A43-1895-1993-eng.pdf Publication 1895/E