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Describes, in text and illustrations, the physical characteristics, habits, natural environment, and relationship with humans of the housefly.
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This 1914 volume responds rising concerns regarding the role of the house-fly in the dissemination of infectious diseases, and its relationship to unhygienic conditions. Given the role played by the house-fly in these circumstances, it was decided that a thorough study of its entomological and medical significance was required.
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"Methods of irrigating grain crops are restricted somewhat because of the fact that such crops cover the entire surface of the plot on which they are grown. Objections to the flooding method, based on loss of water by evaporation, have less weight the irrigation of grain than of other crops, grain fields seldom being irrigated after the seed is planted until the grain is high enough to protect the soil from sun and wind. Grain usually is the first crop grown on irrigated farms. For such farms flooding usually is better than other methods, since the preparation of the land for it is easier than for the other methods. Flooding from field ditches is the usual method of handling water in irrigating grain, but the border basin methods are also adapted to such crops. These methods are described in detail in this bulletin, which also discusses the proper time to irrigate, the quantity of water required, and the cost of growing grain under irrigation."--Page [2]
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Bugs are everywhere around us! This easy-to-read book looks at the special characteristics of houseflies in a child's world. From their red eyes to their tiny claws on their feet, amazing double-page photographs show houseflies in larger-than-life detail for exploration. This title also includes a Picture Quiz and Glossary. Aligned to Common Core Standards and correlated to state standards. Sandcastle is an imprint of Abdo Publishing, a division of ABDO.
Excerpt from book: II THE NATURAL ENEMIES OF THE TYPHOID AS with every other living creature, nature makes its own effort to limit the abundance of the fly under consideration, and the extraordinary facility for multiplication which the fly possesses is in turn the result of the instinctive effort of the organism to maintain its status in spite of the numerous enemies which confront it. The natural enemies of the house fly begin with the acme of the vertebrate series (man himself) and end with the lower forms of plant life, and we will begin our consideration of these agencies with the latter forms. Fungous Diseases In the autumn it is a matter of common observation that many flies in houses...