A Field Guide to Insects and Diseases of California Oaks (Enlarged Edition) PDF Download
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Author: Tedmund J. Swiecki Publisher: ISBN: 9781304145451 Category : Science Languages : en Pages : 0
Book Description
FULL COLOR and Enlarged Edition - California has more than twenty-five native species, natural hybrids, and varieties of oaks (Quercus species). The form of these oaks ranges from large trees, up to about 25 m tall, to shrubs no taller than about 1.5 m. California's native oaks include representatives of three oak subgroups or subgenera (Table 1). Hybridization only occurs between oaks in the same subgroup. In addition, some insects, pathogens, and other agents may selectively colonize or damage oaks in certain subgroups.
Author: Tedmund J. Swiecki Publisher: ISBN: 9781304145451 Category : Science Languages : en Pages : 0
Book Description
FULL COLOR and Enlarged Edition - California has more than twenty-five native species, natural hybrids, and varieties of oaks (Quercus species). The form of these oaks ranges from large trees, up to about 25 m tall, to shrubs no taller than about 1.5 m. California's native oaks include representatives of three oak subgroups or subgenera (Table 1). Hybridization only occurs between oaks in the same subgroup. In addition, some insects, pathogens, and other agents may selectively colonize or damage oaks in certain subgroups.
Author: David Leatherman Publisher: University Press of Colorado ISBN: Category : Gardening Languages : en Pages : 304
Book Description
Insects and Diseases of Woody Plants of the Central Rockies gathers together information on most of the organisms associated with woody plants in Colorado and adjacent areas of the Central Rockies. These organisms include insects and mites, viruses, bacteria, fungi, parasitic plants, and vertebrates. The grouping of the organisms, the diagnostic disorders key, and the index make this publication the most comprehensive reference tool of its kind, for both industry professionals and laypersons alike.
Author: Oliver Milman Publisher: W. W. Norton & Company ISBN: 1324006609 Category : Science Languages : en Pages : 272
Book Description
A devastating examination of how collapsing insect populations worldwide threaten everything from wild birds to the food on our plate. From ants scurrying under leaf litter to bees able to fly higher than Mount Kilimanjaro, insects are everywhere. Three out of every four of our planet’s known animal species are insects. In The Insect Crisis, acclaimed journalist Oliver Milman dives into the torrent of recent evidence that suggests this kaleidoscopic group of creatures is suffering the greatest existential crisis in its remarkable 400-million-year history. What is causing the collapse of the insect world? Why does this alarming decline pose such a threat to us? And what can be done to stem the loss of the miniature empires that hold aloft life as we know it? With urgency and great clarity, Milman explores this hidden emergency, arguing that its consequences could even rival climate change. He joins the scientists tracking the decline of insect populations across the globe, including the soaring mountains of Mexico that host an epic, yet dwindling, migration of monarch butterflies; the verdant countryside of England that has been emptied of insect life; the gargantuan fields of U.S. agriculture that have proved a killing ground for bees; and an offbeat experiment in Denmark that shows there aren’t that many bugs splattering into your car windshield these days. These losses not only further tear at the tapestry of life on our degraded planet; they imperil everything we hold dear, from the food on our supermarket shelves to the medicines in our cabinets to the riot of nature that thrills and enlivens us. Even insects we may dread, including the hated cockroach, or the stinging wasp, play crucial ecological roles, and their decline would profoundly shape our own story. By connecting butterfly and bee, moth and beetle from across the globe, the full scope of loss renders a portrait of a crisis that threatens to upend the workings of our collective history. Part warning, part celebration of the incredible variety of insects, The Insect Crisis is a wake-up call for us all.
Author: National Research Council Publisher: National Academies Press ISBN: 0309035422 Category : Technology & Engineering Languages : en Pages : 136
Book Description
Authored by an integrated committee of plant and animal scientists, this review of newer molecular genetic techniques and traditional research methods is presented as a compilation of high-reward opportunities for agricultural research. Directed to the Agricultural Research Service and the agricultural research community at large, the volume discusses biosciences research in genetic engineering, animal science, plant science, and plant diseases and insect pests. An optimal climate for productive research is discussed.
Author: Tedmund J. Swiecki
Author: Tedmund J. Swiecki
Author: United States. Forest Service
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Author: Mauro E. Martignoni
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Author: David Leatherman
Author: Oliver Milman
Author: Roger B. Yepsen
Author: National Research Council