[PDF] Iita Annual Report And Research Highlights 1985 eBook

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1985

1985 by PDF

Author :
Publisher : IITA
Page : 144 pages
File Size : 15,95 MB
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ISBN :

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ILCA Annual Report 1985/86

International Livestock Centre for Africa
ILCA Annual Report 1985/86 by International Livestock Centre for Africa PDF

Author : International Livestock Centre for Africa
Publisher : ILRI (aka ILCA and ILRAD)
Page : 104 pages
File Size : 49,8 MB
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ISBN :

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Handbook of Biological Control

T. W. Fisher
Handbook of Biological Control by T. W. Fisher PDF

Author : T. W. Fisher
Publisher : Elsevier
Page : 1073 pages
File Size : 13,31 MB
Release : 1999-09-20
Category : Science
ISBN : 0080533019

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For many years the use of chemical agents such as pesticides and herbicides has been effective in controlling the many varieties of pests that infest both agricultural crops and backyard gardens. However, these pests are gradually becoming resistant to these agents, because the agents themselves are acting as selective factors making the pests better and better able to resist and persist. As a result, the use of biological controlling agents is increasing. This book is a comprehensive and authoritative handbook of biological control.