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Author : V. L. Wildermuth
Publisher : Unknown
Page : 32 pages
File Size : 51,6 Mb
Release : 1917
Category : Corn
ISBN : HARVARD:32044107190191
Pp. 21.
Author : V. L. Wildermuth
Publisher : Unknown
Page : 23 pages
File Size : 54,9 Mb
Release : 1917
Category : Corn
ISBN : OCLC:631376825
Author : V. L. Wildermuth
Publisher : Forgotten Books
Page : 32 pages
File Size : 47,7 Mb
Release : 2017-11-08
Category : Electronic
ISBN : 0266030548
Excerpt from The Desert Corn Flea-Beetle In destroying its food plant, this beetle works from both ends, as it were, the adults attacking the plant above the ground and the larvae below the ground. The adults eat out the chlorophyll of the leaves, and when sufficiently numerous they cause the leaves to wilt. If feeding is long continued, new growing plants will be killed. AS the eggs are deposited below the surface of the ground, the larvae immediately begin feeding. Upon the roots, and soon the plant has quite a shallow root system that will not support it in a thrifty manner. The roots, after having been injured by the larvae, attempt to overcome this injury by sending out new laterals, as illustrated in figure 6, page 11, and then sometimes Slight windstorms will cause plants to blow over and lodge badly, thus further reducing the yield. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : V. L. Wildermuth
Publisher : Unknown
Page : 28 pages
File Size : 55,7 Mb
Release : 1917
Category : Corn
ISBN : UIUC:30112104062754
Pp. 21.
Author : Anonim
Publisher : Unknown
Page : 300 pages
File Size : 55,6 Mb
Release : 1916
Category : Agriculture
ISBN : UCBK:C052088406
Author : United States. Department of Agriculture
Publisher : Unknown
Page : 1020 pages
File Size : 47,5 Mb
Release : 1920
Category : Agriculture
ISBN : MINN:31951D00044980N
Author : John L. Capinera
Publisher : Gulf Professional Publishing
Page : 792 pages
File Size : 40,6 Mb
Release : 2001
Category : Gardening
ISBN : 0121588610
Assisting anyone in need of an easy-to-use yet comprehensive survey of all pests likely to be encountered in North America, this handbook provides thorough identification guides, descriptions of pest life history, and pest management recommendations. Including hundreds of illustrations, this guide is cross-referenced to scientific literature, and includes color plates for ease of insect identification.
Author : John Capinera
Publisher : Academic Press
Page : 818 pages
File Size : 47,8 Mb
Release : 2020-04-23
Category : Technology & Engineering
ISBN : 9780128144893
Handbook of Vegetable Pests, Second Edition, provides two types of diagnostic aids: the easy-to-use "guides to pests of vegetable crops", which guides the reader to the most likely pests of each vegetable crop based on the portion of the plant attacked and the category of pest; and the more technical dichotomous keys for identification of many of the difficult-to-identify species. It includes over 300 common and occasional pest species, detailing the geographic distribution of vegetable pests, host plant relationships, natural enemies, damage, life history, and methods of control and damage prevention. Presents a current and comprehensive synthesis of vetted information for the support of both commercial and home vegetable production Includes over 300 common and occasional pest species, or species complexes, known to affect vegetables grown in the United States and Canada Summarizes the important findings of the last 150 years Provides citations to the original literature
Author : Anonim
Publisher : Unknown
Page : 866 pages
File Size : 54,9 Mb
Release : 1963
Category : Insect pests
ISBN : STANFORD:36105210407693
Author : United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs
Publisher : Unknown
Page : 770 pages
File Size : 43,8 Mb
Release : 1965
Category : Insect pests
ISBN : UOM:39015004638436
Author : D. S. Hill
Publisher : CUP Archive
Page : 682 pages
File Size : 47,5 Mb
Release : 1987-05-28
Category : Science
ISBN : 0521240131
This handbook is a companion to Agricultural Insect Pests of the Tropics and their Control (2nd Edition 1983) and, like the earlier book, it is designed as a source of reference about most of the major insect and mite pests of agricultural crops. These two volumes by the same author now present a world-wide coverage of the economically important insect pests of tropical and temperate agriculture. Students taking courses in entomology, agriculture, crop pest biology and crop protection, and professional workers concerned with identification and control of insect pests, will find this comprehensive account an indispensable handbook and source of reference.
Author : D.K. Salunkhe,S.S. Deshpande
Publisher : Springer Science & Business Media
Page : 510 pages
File Size : 43,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461520399
The present world population of about five billion and its projected growth cre ate enonnous pressures and demands for food and industrial raw materials. It is to crop plants, one of our precious few renewable resources, that we must look to meet most of these needs. Globally, about 88% of our caloric requirements and 90% of our protein ultimately derive from plant sources-ample evidence of their importance to humankind. Our survival will therefore continue to de pend on the world's largest and certainly most important industry: agriculture. Yet in spite of our long history of domestication and civilization, the number of crop species involved in sustaining human life is strictly limited: Essentially, some twenty-four crops protect us from starvation. To know these basic food crop plants-to study how they function and how their productivity may be improved--is the first step in solving the world food problem. The primary objectives in writing this book were to address this chal lenge and to review comprehensively the wealth of available yet scattered infor mation on food crop productivity and processing. Unlike several other texts and monographs in this field, the present work was intended to give, in a single volume, a quick, infonnative view of the various problems from field to table concerning the major food crops worldwide.
Author : Anonim
Publisher : CABI
Page : 1536 pages
File Size : 42,6 Mb
Release : 2011
Category : Science
ISBN : 9781845935429
Incorporating an estimated 43,000 definitions, this major reference work is a comprehensive, fully cross-referenced collection of terms, names and phrases used in entomology. It is the only listing that covers insect anatomy, behaviour, biology, ecology, histology, molecular biology, morphology, pest management, taxonomy and systematics. Common names, scientific binomen and taxonomic classifications are provided as well as order, suborder, superfamily, family and subfamily names and diagnostic features of orders and families. With new and updated terms, particularly in molecular biology, phylogeny and spatial technology, this revised new edition of A Dictionary of Entomology is an essential reference for researchers and students of entomology and related disciplines.
Author : United States. Department of Agriculture
Publisher : Unknown
Page : 370 pages
File Size : 44,5 Mb
Release : 1917
Category : Agriculture
ISBN : UOM:39015074964795
Author : Anonim
Publisher : Unknown
Page : 370 pages
File Size : 43,8 Mb
Release : 1917
Category : Agriculture
ISBN : UIUC:30112018466620