Zobrazeno 1 - 10
of 28
pro vyhledávání: '"L. E. Vincent"'
Autor:
L. E. Vincent, David L. Lindgren
Publikováno v:
Journal of Economic Entomology. 70:497-500
Methyl bromide and phosphine were evaluated at various temperatures and exposure periods against the egg, larval. prepupal, pupal, and adult stages of the cigarette beetle. In general, as the temperature increased, the amount of methyl bromide or pho
Autor:
L. E. Vincent, David L. Lindgren
Publikováno v:
Journal of Economic Entomology. 68:53-56
Laboratory tests were conducted to determine the toxicity of phosphine and methyl bromide to the eggs and postembryonic stages of Trogoderma variabile Ballion at various temperatures and exposure periods. Results indicated that both fumigants were mo
Autor:
L. E. Vincent, David L. Lindgren
Publikováno v:
Journal of Economic Entomology. 63:1926-1929
The time required to obtain 50 and 95% mortality of the granary weevil, Sitophilus granarius (L.), and the rice weevil, S. oryzae (L.), in atmospheres of CO2, N2, or He and in various combinations of CCvair and CO2-O2 was determined. The order of sus
Autor:
David L. Lindgren, L. E. Vincent
Publikováno v:
Journal of Economic Entomology. 52:312-319
The khapra beetle, Trogoderma grananum Everts, was first found established in California in 1953 and was subsequently detected in Arizona and New .Mexico, as well as in Baja California, Mexico, but has not been found in other states. In connection wi
Autor:
David L. Lindgren, L. E. Vincent
Publikováno v:
Journal of Economic Entomology. 52:1091-1096
Gas chromatography was used to determine the concentrations of acrylonitrile, carbon disulfide, carbon tetrachloride, chloropicrin, ethylene dibromide, ethylene dichloride, hydrocyanic acid, methyl bromide, and of fumigant mixtures (on a volume basis
Autor:
David L. Lindgren, L. E. Vincent
Publikováno v:
Journal of Economic Entomology. 58:660-664
Adults of Tribolium confusum Jacquelin duVal and Sitophilus granarius (L.) were fumigated with chloropicrin, hydrocyanic acid, ethylene dibromide, ethylene dichloride, ethylene oxide, and methyl bromide. Both the fumigant concentration and carbon dio
Autor:
David L. Lindgren, L. E. Vincent
Publikováno v:
Journal of Economic Entomology. 58:551-555
Field cultures of Tribolium castaneum (Herbst) and T. confusum Jacquelin duVal were obtained from various flour and feed mills and warehouses in the United States, and their relative susceptibility to fumigation with ethylene diibromide, hydrocyanic
Autor:
L. E. Vincent, David L. Lindgren
Publikováno v:
Journal of Economic Entomology. 44:975-979
Publikováno v:
Hilgardia. 24:1-36
The khapra beetle, Trogoderma granarium Everts, a serious pest of stored grains and other food products in India and elsewhere, has recently been found in 23 counties of California, Arizona, and New Mexico. It thrives on hot, dry conditions and has p
Autor:
David L. Lindgren, L. E. Vincent
Publikováno v:
Journal of Economic Entomology. 53:1071-1077
Results are given of the mortality of the adults of Tribolium confusum Duv. And Sitophilus oryza (L.) obtained when fumigated with carbon tetrachloride, hydrocyanic acid, and methyl bromide under forced circulation with no load, and in the presence o