A Study of the Oyster-shell Scale, Lepidosaphes Ulmi (L.), and One of Its Parasites, Aphelinus Mytilaspidis Le B.
Author: Grace Hall Griswold
Publisher:
Published: 1925
Total Pages: 84
ISBN-13:
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Author: Grace Hall Griswold
Publisher:
Published: 1925
Total Pages: 84
ISBN-13:
DOWNLOAD EBOOKAuthor: Canada. Department of Agriculture
Publisher:
Published: 1975
Total Pages: 2
ISBN-13:
DOWNLOAD EBOOKAuthor: Douglass R. Miller
Publisher: Cornell University Press
Published: 2005
Total Pages: 468
ISBN-13: 9780801442797
DOWNLOAD EBOOKThis book provides the most comprehensive available information on the identification, field appearance, life history, and economic importance of the 110 economically important armored scale insects that are found in the US.
Author: M. Kosztarab
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 472
ISBN-13: 9400940459
DOWNLOAD EBOOKThis book is dedicated to the scientists whose professional devotion and accomplish ments in research on scale insects of the area made the compilation of this book possible. This book has two primary objectives: (1) to enable interested workers, who are not specialists of scale insects, to recognize and indentify these to families, genera and species; and (2) to provide information on the life cycle, host-plant range, natural enemies, geographical distribution, economic importance for each known species from Central Europe, and to provide a bibliography on each taxa covered. Scale insects are important pests of fruit and nut trees, forest vegetation, woody ornamentals, greenhouse and indoor plants. World-wide losses and increased production costs attributed to scale insects are estimated to reach $5 billion annually. It is difficult to recognize them because of their microscopic size and hidden habits. Identification of pest species enables plant growers to check appropriate reference sources for biological information and to select control methods.
Author:
Publisher:
Published: 1917
Total Pages: 1038
ISBN-13:
DOWNLOAD EBOOKAuthor: Harry Hazelton Knight
Publisher:
Published: 1922
Total Pages: 142
ISBN-13:
DOWNLOAD EBOOKAuthor: Colorado. State Entomologist
Publisher:
Published: 1921
Total Pages: 252
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1974
Total Pages: 804
ISBN-13:
DOWNLOAD EBOOKAuthor: New York (State). Legislature. Assembly
Publisher:
Published: 1909
Total Pages: 852
ISBN-13:
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