Read A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint)

A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint)

J F Illingworth

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Description:Excerpt from A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 Disease organisms in the soil have long been recognised as useful allies in the control of white grubs. Hence, I was gratified, soon after my arrival in Queensland, to find that approximately one-third of the grubs on the Greenhills Estate had recently succumbed to Muscardine fungus. Naturally this discovery led to further investigations, especially as to the conditions under which these friendly agents became effective. Later, artificial propagation of the disease was undertaken with some success; but this discontinued in 1920, when I found that the peculiar climatic conditions had brought about an epidemic wherever spores of the disease occurred naturally in grubby soils. The year 1920 was abnormal in many ways. First of all the rainy season was very late in starting, so that it was the middle of January before the first beetles emerged. The delay did not curtail their numbers, however, for they came out in swarms, and, furthermore, when it became time to oviposit, they were exceedingly erratic in their flight, especially on the Greenhills Estate, where they extended far into fields which had been regularly immune. As a result of this peculiar distribution of the grubs, I have been able to work out some important facts as to the normal location of disease organisms in the soil there. The Greenhills Estate The Greenhills Estate has about 1,000 acres under cultivation. Nearly half of this area - the portion with timber to the north and east - has suffered for a number of years from excessive attacks of grubs. The soil is of a uniform chocolate colour, of volcanic origin and great depth. It is excellent ground to work, mellow as a garden, and so well drained that it can be cultivated even during the rainy season. Splendid crops can be grown without manures; yet the soil is very deficient in humus, a fact which probably explains the tremendous destruction to the crops from white grubs. 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.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint). To get started finding A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
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Description: Excerpt from A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 Disease organisms in the soil have long been recognised as useful allies in the control of white grubs. Hence, I was gratified, soon after my arrival in Queensland, to find that approximately one-third of the grubs on the Greenhills Estate had recently succumbed to Muscardine fungus. Naturally this discovery led to further investigations, especially as to the conditions under which these friendly agents became effective. Later, artificial propagation of the disease was undertaken with some success; but this discontinued in 1920, when I found that the peculiar climatic conditions had brought about an epidemic wherever spores of the disease occurred naturally in grubby soils. The year 1920 was abnormal in many ways. First of all the rainy season was very late in starting, so that it was the middle of January before the first beetles emerged. The delay did not curtail their numbers, however, for they came out in swarms, and, furthermore, when it became time to oviposit, they were exceedingly erratic in their flight, especially on the Greenhills Estate, where they extended far into fields which had been regularly immune. As a result of this peculiar distribution of the grubs, I have been able to work out some important facts as to the normal location of disease organisms in the soil there. The Greenhills Estate The Greenhills Estate has about 1,000 acres under cultivation. Nearly half of this area - the portion with timber to the north and east - has suffered for a number of years from excessive attacks of grubs. The soil is of a uniform chocolate colour, of volcanic origin and great depth. It is excellent ground to work, mellow as a garden, and so well drained that it can be cultivated even during the rainy season. Splendid crops can be grown without manures; yet the soil is very deficient in humus, a fact which probably explains the tremendous destruction to the crops from white grubs. 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.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint). To get started finding A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint)

A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint)

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