Bulletin, Temas11-20U.S. Government Printing Office, 1886 |
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Términos y frases comunes
abdomen abundant Agriculture ALPHEUS Amer Anguillula antennæ Aphides Aphis appeared August Bayou bees beetles borer brassica brown Buhach Bulletin C. V. RILEY Cabbage cabbage worms caterpillar Chinch Bug Cicada cocoon Coleoptera color corn County crop Curculio dark destroyed destructive diluted Diptera Division of Entomology effect eggs emulsion Entom Entomological Entomologist experiments feeding field figs Florida fore wings fruit genera Glover gnats green ground Hemiptera Hist Icerya inch infested insects injurious July June kerosene killed large number larva larvæ leaves legs Lepidoptera locusts Lygus moth museum Myriapoda native plums nearly North American numbers observed orange Orthoptera ounces ovipositing PACKARD pale parasites pest placed plants plates Plum Curculio Plusia powder Proc Professor Riley pupa Pyrethrum remedy Report Rept Rocky Mountain Locust scales season segment soap soil solution species specimens spraying spring thread tion Trans trees vines Washington wheat worms young
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Página 68 - SOCIETY and proceedings of the Entomological Section of the Academy of Natural Sciences (beginning with 1868; 14 volumes published up to 1887.
Página 74 - No. 17. — The Chinch Bug. A general Summary of its History, Habits, Enemies, and of the Remedies and Preventives to be used against it.
Página 35 - But the great majority of planters can not wait for the disappearance of the pest, and have to resort to other defensive means. Various external applications have been used to this effect: Decoctions of alder leaves, tobacco, pennyroyal, and other herbs, have been tried with a view of preventing gnats from biting mules while at work; but all of them have proven ineffective. At a time when small swarms of turkey-gnats were tormenting mules plowing in the field one side of the animal was moistened...
Página 12 - Guide to the Study of Insects, and a Treatise on those Injurious and Beneficial to Crops.
Página 23 - In the winter time, when hard pushed for food, they must devour enormous numbers of the little pests, which winter in just such situations as are frequented by the quail; and this bird should be protected from the gun of the sportsman in every State where the Chinch Bug is known to run riot.
Página 32 - La., within a week of their first appearance, they had caused the death of' 300 head of stock. They were equally numerous throughout the whole region infested, and for the first time in the history of the pest they attacked horses and mules on the streets of the cities of Vicksburg and Memphis. No general outbreak took place in 1885, yet gnats appeared in sufficient numbers to kill quite a number of mules in various parishes of Louisiana, especially in Tensas and Franklin.
Página 13 - it often crowds both the upper and under sides of the foliage in such numbers that the leaves become hidden by the living mass. Indeed, sometimes, weight for weight, there is more animal than vegetable substance present. The leaves then become putrid, offensive in odor, and quite disgusting to the eye...
Página 74 - Reports of observations and experiments in the practical work of the division made under the direction of the Entomologist.
Página 11 - ... reaches the cabbage leaves. The thick fleshy nature of the leaves enables them to withstand considerable heat with very little injury. The sacrifice of a few heads of cabbage will soon teach an experimenter how far he can go with the hot water. It may be sprinkled over the plants from a fine rose watering-can or poured on with the sprinkler removed.
Página 61 - On the Chilopoda of North America, with a Catalogue of all the Specimens in the Collection of the Smithsonian Institution.