. Nature study and agriculture. Nature study; Agriculture. 202 INSECTS thinner, and when not in use are folded underneath the others like a fan. The mouth is made for biting. These creatures are great eaters all their Hves, the grasshoppers being very destructive to vegetation. Certain locusts or short-horned grasshoppers are a much-dreaded insect plague in various parts of the world, and in regions that are subject to their ravages it is sometimes almost impossible to carry on agri-. o. b. a, Katydid; b, Cockroach; c, Cricket culture, as they may devour every blade of vegetation within their
. Nature study and agriculture. Nature study; Agriculture. 202 INSECTS thinner, and when not in use are folded underneath the others like a fan. The mouth is made for biting. These creatures are great eaters all their Hves, the grasshoppers being very destructive to vegetation. Certain locusts or short-horned grasshoppers are a much-dreaded insect plague in various parts of the world, and in regions that are subject to their ravages it is sometimes almost impossible to carry on agri-. o. b. a, Katydid; b, Cockroach; c, Cricket culture, as they may devour every blade of vegetation within their reach. Grasshoppers lay their eggs in masses of 20 to 100 in the ground where they remain over the winter and hatch in the spring. The young resemble the parent, but are smaller and wingless. Bugs, Lice, and Plant Lice suck the blood of animals or the sap of plants, and most of them are quite harmful to their victims. Some of them have four wings and others have none at all. The most important group belonging to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Schmidt, Charles Christian, 1859-. Boston, New York [etc. ] D. C. Heath & Co
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectagriculture, bookyear
