BulletinU.S. Government Printing Office, 1887 |
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100 gallons abundant adults Agriculture ALPHEUS Amer Anguillula antennæ Aphis appeared attack August beet beetles Blissus leucopterus brood brown Bulletin C. V. RILEY Cabbage Chinch Bug Coleoptera color corn County coxæ crop damage descriptions destroyed destructive Diptera Division of Entomology early effect eggs Entom Entomological Entomologist experiments feeding female field figs fruit genera Glover grain grass ground grub Hemiptera Hessian fly Icerya Icerya purchasi Illinois inch infested insects injurious July kerosene large numbers larva larvæ later Leaf-hoppers leaves Lepidoptera Locust moths museum Myriapoda North American numbers observed October orange trees Orthoptera ovipositing PACKARD parasites pest Phylloxera placed plants plates plats Plum Curculio plums portion pounds Proc Professor Riley published pupa red scales remedies resin Rocky Mountain Locust roots scale insects season September soil solution sown species specimens sprayed spring tion Trans wheat wings winter worms young
Popular passages
Page 70 - SOCIETY and proceedings of the Entomological Section of the Academy of Natural Sciences (beginning with 1868; 14 volumes published up to 1887.
Page 75 - Reports of observations and experiments in the practical work of the division, made under the direction of the Entomologist, together with extracts from correspondence on miscellaneous insecte.
Page 77 - Canada, reported at the meeting of the Entomological Club of the American Association for the Advancement of Science at...
Page 42 - Heat the solution of soap, and add it boiling hot to the kerosene. Churn the mixture by means of a force pump and spray nozzle for five or ten minutes. The emulsion, if perfect, forms a cream, which thickens on cooling, and should adhere without oiliness to the surface of glass. Dilute before using one part of the emulsion with nine parts of hot water. The above formula gives three gallons of emulsion, and makes, when diluted, thirty gallons of wash.
Page 16 - After the second molt [Fig. 5,/] the head and thorax are quite dusky and the abdomen duller red, but the pale transverse band is still distinct ; the wing-pads become apparent, the members are more dusky, there is a...
Page 76 - No. 17. — The Chinch Bug. A general Summary of its History, Habits, Enemies, and of the Remedies and Preventives to be used against it.
Page 37 - 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...
Page 14 - Guide to the Study of Insects, and a Treatise on those Injurious and Beneficial to Crops.
Page 74 - No. 3. — The Cotton Worm. Summary of its Natural History, with an Account of its Enemies, and the best Means of controlling it; being a Report of Progress of the Work of the Commission.
Page 28 - On the low grounds the young chinch bugs are all dead from the disease above alluded to, and the same disease is spreading rapidly on the hills and high prairies.