Zobrazeno 1 - 10
of 24
pro vyhledávání: '"W. S. Hough"'
Publikováno v:
Journal of Economic Entomology. 36:580-583
Autor:
W. S. Hough
Publikováno v:
Journal of Economic Entomology. 25:613-617
Results of one season's orchard experiments with five coal tar distillate sprays or “washes” for the control of San Jose scale indicate that, (1) only the higher concentrations (1–10 and possibly 1–15) may give control somewhat comparable to
Autor:
W. S. Hough, L. A. Stearns
Publikováno v:
Journal of Economic Entomology. 17:274-278
The efficacy of a casein spreader (Kayso) in the commonly recommended sprays for apple and peach has been studied for the second season. These sprays, with and without the spreader, were mixed by the writers and applied by the regular orchard force.
Autor:
W. S. Hough
Publikováno v:
Journal of Economic Entomology. 31:216-221
Autor:
L. A. Stearns, W. S. Hough
Publikováno v:
Journal of Economic Entomology. 16:198-201
Casein and Flour-Paste have received considerable attention for some time as spreaders and adhesives in spray solutions. In 1922, orchard tests were conducted with Kayso, a prepared casein spreader, and Magnet Dry Paste, a prepared flour-paste spread
Autor:
W. S. Hough
Publikováno v:
Journal of Economic Entomology. 18:823-827
Pseudococcus Comstocki Kuw., is the principal insect enemy of Catalpa bungei in northern Virginia, eastern West Virginia and through the Cumberland Valley to Hagerstown, Maryland. Ovicidal properties of various materials were tested. Investigations c
Publikováno v:
Journal of Economic Entomology. 38:422-425
Autor:
W. S. Hough
Publikováno v:
Journal of Economic Entomology. 32:264-270
Autor:
R. N. Jefferson, W. S. Hough
Publikováno v:
Journal of Economic Entomology. 29:537-541
Autor:
W. S. Hough
Publikováno v:
Bulletin of Entomological Research. 16:25-29
The purpose of this paper is to present the more important features of the internal anatomy of a subterranean viviparous mealy-bug commonly found on the roots of clover in the eastern part of the United States. Only the female was studied, since the