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Sinopsis
This book is an entomological study that explores the origins, dispersal, and life cycles of three of the most notorious pests of coffee plants in South India. The author, a renowned entomologist, conducts detailed investigations on the Green Bug, Brown Bug, and Mealy Bug, shedding light on their behavior, and their impact on coffee production. The author meticulously examines these pests' development, reproduction, and feeding habits, providing valuable insights into their biology. The book delves into the parasitic relationships between the bugs and their natural enemies, and how ants influence their spread. The author also discusses the historical context of the bugs' arrival in South India, and charts their rapid proliferation across the region's coffee-growing areas. Brimming with scientific observations and practical implications, this book will be an invaluable resource for entomologists, agricultural scientists, and anyone interested in the challenges and triumphs of pest management.
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Reseña del editor
Excerpt from Some Scale Insect Pests of Coffee in South India
I This insect was originally described by Green as Lecam'um stride, and by this name it is commonly known. Recent systematic work, however, has led to the splitting up of the genus Lecanium. This gene ric name therefore ceases to exist and the older name Coccus takes its place in the case of the green bug. Vide M. E. Fernald, Cata logue of the Coccidae of the World, Hatch Experiment Station Bulletin No. 88.
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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.
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Excerpt from Some Scale Insect Pests of Coffee in South India
Introduction.
The Scale Insects or Coccidæ form a large group embracing some of the most serious pests of cultivated plants and at the same time including useful forms such as the cochineal and the lac insects. Text-Fig. 1 shows the external structure of one of these insects and may be taken to represent the group in general. The popular name, scale insects, appropriately describes their scab or scale-like appearance. The shape is usually flat and oval but is often obscured by secretions of a resinous or waxy nature and by ovisacs or egg bags at the hind end of the body. There is usually little or no trace of segmentation, the three natural divisions of the body, viz., the head, the thorax and abdomen running into one another. There are three pairs of legs ending in hooks. The eyes are minute black spots near the margin. The mouth is situated between the first pair of legs. The mouth parts consist of four long slender hairs closely approximated to form a tube, along which the plant sap is drawn. When not in use, this tube is withdrawn into a special sac inside the body where it remains in the form of a loop, the sharp point only appearing outside. For the manipulation of the proboscis there are a number of muscles which converge into a small chitinous cradle (see Plate II, Fig.3).
The sexes of scale insects are sharply differentiated in the adult stage. The females retain more or less the flat oval shape and are wingless. The males, on the other hand, are provided with a pair of wings and a pair of eyes, but have no feeding apparatus. The reproductive powers of scale insects are -enormous. The number of young produced may reach several hundreds and a large number of species reproduce without the assistance of a male.
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.
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Some Scale Insect Pests of Coffee in South India (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book is an entomological study that explores the origins, dispersal, and life cycles of three of the most notorious pests of coffee plants in South India. The author, a renowned entomologist, conducts detailed investigations on the Green Bug, Brown Bug, and Mealy Bug, shedding light on their behavior, and their impact on coffee production. The author meticulously examines these pests' development, reproduction, and feeding habits, providing valuable insights into their biology. The book delves into the parasitic relationships between the bugs and their natural enemies, and how ants influence their spread. The author also discusses the historical context of the bugs' arrival in South India, and charts their rapid proliferation across the region's coffee-growing areas. Brimming with scientific observations and practical implications, this book will be an invaluable resource for entomologists, agricultural scientists, and anyone interested in the challenges and triumphs of pest management. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781332309627_0
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