Third Report of the United States Entomological Commission, Relating to the Rocky Mountain Locust, the Western Cricket, the Army Worm, Canker Worms, and the Hessian Fly
U.S. Government Printing Office, 1883 - 451
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abdomen American appearance Army Worm attacks August become body broad brood Canker Worm cause closely comparatively County crop damage deposited described destroyed destructive developed direction edge eggs entirely extending fact fall Farmer female field Fitch flies four front give given grain grass ground habits hatched head Hessian Fly Illinois inch injury insect joint July June known land larva larvæ late latter leaves length less localities locusts March mentioned Michigan middle Missouri moths Mountain narrow natural nearly northern noticed numbers observed occurred origin pair parasites pass period plants Plate portion present probably pupa reached reference region Report River says season seen segment short side soon sowing species specimens spring stage stalk summer swarms taken trees usually various wheat wide wings winter young
Strona 66 - The part of the sun's disc not occupied by spots is far from uniformly bright Its ground is finely mottled with an appearance of minute, dark dots, or pores, which, when attentively watched, are found to be in a constant state of change. There is nothing which represents so faithfully this appearance as the slow subsidence of some flocculent chemical precipitates in a transparent fluid, when viewed perpendicularly from above...
Strona 93 - ... but they soon filled the ditch, and the millions that were in the rear went over on the backs of their fellows in the trench, and took possession of the interdicted food. The inhabitants then adopted another expedient to save those fields yet standing. They cut a trench as before ; then took round and smooth...
Strona 92 - ... were caterpillar years." 1666. "The Indian corn eaten by the worms." 1743. "Millions of devouring worms in armies, threatening to cut off every green thing.
Strona 131 - ROLLING; FENCING; ROPING. — Where the crop of a field has been completely destroyed by the worms, the plan of killing them by heavy rollers has been tried. This, however, is an expensive remedy and is not as satisfactory as might be supposed. Experiments on Long Island in 1880 proved that even where the ground was level the rollers soon became irregularly covered with mud composed of earth and of the juices of the crushed worms, so that the effect was much the same as if the ground had been uneven,...
Strona 92 - Millions of devouring worms in armies, threatening to cut off every green thing." 1762. " At last, when the corn was planted, millions of worms appeared to eat it up." 1770. "A very uncommon sort of a worm, called the Canker Worm, ate the corn and grass all as they went above ground, which cut short the crops in many places.
Strona 245 - ... field of winter wheat may thus be recuperated in the spring. 6. Pasturing with sheep, and consequent close cropping of the winter wheat in November and early December, may cause many of the eggs, larvae, and flaxseeds to be destroyed ; also, rolling the ground may have nearly the same effect. 7. Sowing hardy varieties. The Underbill Mediterranean wheat, and especially the Lancaster variety, which tillers vigorously, should be sown in preference to the slighter, less vigorous kinds in a region...
Strona 213 - Here it fastens, lengthwise, and head downwards, to the tender stalk, and lives upon the sap. It does not gnaw the stalk, nor does it enter the central cavity thereof; but, as the larva increases in size, it gradually becomes embedded in the Bubstance of the stalk.
Strona 230 - As previously stated, most probably nine-tenths of the young Hessian Flies are destroyed in the larva or pupa state by the parasites already described. For the most part these parasites live in the flaxseeds contained in the straw, and appear in spring. Now, to burn the stubble in the autumn or early spring is simply to destroy these useful parasites, the best friends of the farmer. We do not hesitate to urge that the straw be untouched. On the contrary, the parasites should be gathered and bred...