 |
|
|
|
 Pesticides: A Toxic Time Bomb in Our MidstThe writing of this book came about through a serendipitous circumstance. I wrote a book dealing with child labor in the United States, published three years earlier, containing a chapter that included a description of the hazards migrant farmworkers and their children face, not the least of which was exposure to pesticides. While mentioning the... |  |  |  |  |
|
|
|
 Wonder World Under WaterNearly three-quarters of our earth is covered by water. Yet we, living on land, usually know more about land creatures than our aquatic denizens. We have many kinds of watery environments, from the fast, clear, cold streams of the Himalaya to the placid rivers of the plains, and natural as well as man-made lakes and ponds. Moreover, we have a long... |  |  Encyclopedia of Entomology
The Encyclopedia of Entomology brings together the expertise of more than 450 distinguished entomologists from 40 countries to provide a worldwide overview of insects and their close relatives. Combining the basic science of an introductory text with accurate, comprehensive detail, the Encyclopedia is a reliable... |  |  Insect Outbreaks Revisited
The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion. They can be... |
|
|
Result Page: 3 2 1 |