Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest
Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest
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In our eReader you can find the full English version of the book. Read Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest
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board, and these facts are taken into consideration in carry- ing on field work -against this insect.
The task which has fallen to the Bureau of Entomology in connection with gipsy-moth control has been to use every effort possible to prevent the spread of the insect and to re- duce the damage resulting therefrom. It has been necessary to carry through many extensive experiments in order to secure information for use in the field operations, and the experimental work has formed the basis and gr...oundwork for the application of field methods. Prior to 1905 no effort was made to introduce the parasites and natural enemies of the gipsy moth or the brown-tail moth. A popular theory exists that in its native home every insect is held within reasonable bounds by parasites or natural enemies, and that each insect has some one species of parasite or natural enemy which is responsible for its control. When this natural check fails, either on account of attack by its own enemies or for other reasons, the original host will, for a time, become noxious.
What to read after Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest?
You can find similar books in the "Read Also" column, or choose other free books by Albert Franklin Burgess to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
board, and these facts are taken into consideration in carry- ing on field work -against this insect.
The task which has fallen to the Bureau of Entomology in connection with gipsy-moth control has been to use every effort possible to prevent the spread of the insect and to re- duce the damage resulting therefrom. It has been necessary to carry through many extensive experiments in order to secure information for use in the field operations, and the experimental work has formed the basis and gr...oundwork for the application of field methods. Prior to 1905 no effort was made to introduce the parasites and natural enemies of the gipsy moth or the brown-tail moth. A popular theory exists that in its native home every insect is held within reasonable bounds by parasites or natural enemies, and that each insect has some one species of parasite or natural enemy which is responsible for its control. When this natural check fails, either on account of attack by its own enemies or for other reasons, the original host will, for a time, become noxious.
What to read after Suppression of the Gipsy And Brown Tail Moths And Its Value to States Not Infest?
You can find similar books in the "Read Also" column, or choose other free books by Albert Franklin Burgess to read onlineMoreLess
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