1. 1951-01-01 The purpose of this book is to provide a practical working manual and guide for poultrymen keeping layers in indiviual cages in relatively open house.
  2. This manual discusses the biology, economic status, and management of insects, diseases, nematodes, weeds, and vertebrates important to crop production in California. Photographs and other illustrations are intended to help the reader identify important pests and their damage, an essential first...