Insects And Man An Account of the More Important Harmful And Beneficial Insect
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In our eReader you can find the full English version of the book. Read Insects And Man An Account of the More Important Harmful And Beneficial Insect 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 Insects And Man An Account of the More Important Harmful And Beneficial Insect
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Like many insects that derive their nourishment by, as it were, embedding their mouths in the plant on which they live and sucking its juices, these insects secrete a sugary liquid, known as honeydew, which forms the nutritive medium of a sooty mould. The fungus growth does more damage to the plants than the insects themselves, per- vading, as it does, not only the leaves but the branches and even the fruit itself.
Seeing that more than forty- five per cent, of the citrus groves in Florida are ...infested with white fly, estimated to cause a loss of from forty-five to fifty per cent, of the value of an orange crop, it is hardly surprising that scientists called to mind the success of the little Australian beetle against the cottony cushion scale and turned their attention to hunting for another benefactor to come to the rescue of their orange crops.
In 1910 the American Congress made a special grant towards a world-wide search for the native home of the citrus white fly and the collection of its natural enemies, 314 INSECTS AND MAN if any were found.
What to read after Insects And Man An Account of the More Important Harmful And Beneficial Insect?
You can find similar books in the "Read Also" column, or choose other free books by Charles Aubrey Ealand to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Like many insects that derive their nourishment by, as it were, embedding their mouths in the plant on which they live and sucking its juices, these insects secrete a sugary liquid, known as honeydew, which forms the nutritive medium of a sooty mould. The fungus growth does more damage to the plants than the insects themselves, per- vading, as it does, not only the leaves but the branches and even the fruit itself.
Seeing that more than forty- five per cent, of the citrus groves in Florida are ...infested with white fly, estimated to cause a loss of from forty-five to fifty per cent, of the value of an orange crop, it is hardly surprising that scientists called to mind the success of the little Australian beetle against the cottony cushion scale and turned their attention to hunting for another benefactor to come to the rescue of their orange crops.
In 1910 the American Congress made a special grant towards a world-wide search for the native home of the citrus white fly and the collection of its natural enemies, 314 INSECTS AND MAN if any were found.
What to read after Insects And Man An Account of the More Important Harmful And Beneficial Insect?
You can find similar books in the "Read Also" column, or choose other free books by Charles Aubrey Ealand to read onlineMoreLess
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