This book provides useful clues on plant characteristics, bioactive materials and their properties, methods of preparation and extraction, methods of application, cautions in use, and other complementary uses.
01 មករា 1983 This book is a well-written synthesis of current knowledge about pests, pesticides, application, and environmental concerns. It covers a complex topic in language that is practical and not excessively technical. This outstanding guide will give the reader a thorough understanding of pesticides...
In this book you can learn about means of eliminating or drastically decreasing insect pests by 'biological control," that is, through the introduction of their natural enemies--other insects which act as parasites or predators and, in sufficient numbers, will destroy the enemy--or, by the...