Zobrazeno 1 - 10
of 36
pro vyhledávání: '"L W, Getzin"'
Autor:
L. W. Getzin
Publikováno v:
Bulletin of environmental contamination and toxicology. 5(2)
The organophosphorus insecticide, methidathion, degraded rapidly in a sandy loam, silt loam, clay loam and organic soil. Fifty percent of the initial applications decomposed in less than 2 weeks and more than 90% of the insecticide disappeared within
Publikováno v:
Journal of Economic Entomology. 79:1681-1687
Economic injury level, action threshold, and population development studies with the pea aphid (PA), Acyrthosiphon pisum (Harris), were conducted during 1983–85. Pea aphid densities, simulating those in commercial pea fields, were established using
Autor:
L. W. Getzin, J. Eric Halfhill
Publikováno v:
Journal of Economic Entomology. 69:647-651
Insects found during the normal inspection of 7213 tons of processed peas in a Pacific Northwest processing plant were retrieved and identified. The collection included a variety of species representing 6 taxonomic orders. The principal contaminants
Autor:
L. W. Getzin
Publikováno v:
Journal of Economic Entomology. 74:158-162
The decomposition of 14C-ring-labeled chlorpyrifos was followed in 2 soils for a 32-week period under laboratory conditions at 25°C. Time required for 50% loss of parent compound in Chehalis clay loam and Sultan silt loam was 4 and 12 weeks, respect
Autor:
L. W. Getzin, T. E. Archer
Publikováno v:
Journal of Economic Entomology. 76:558-562
Sticky-trap catches of adult Psila rosae (F.) were used to time the application of rowband sprays of fensulfothion, carbofuran, chlorpyrifos, and diazinon to seedling carrots. The results demonstrated that adult monitoring can be used successfully to
Autor:
L. W. Getzin
Publikováno v:
Journal of Economic Entomology. 78:1337-1340
Onychiurus pseudarmatus Folsom attacks germinating seeds and seedling roots of several crops in western Washington. Insecticides were tested as soil treatments against this collembolan in the laboratory; selected ones were field-tested as seed treatm
Autor:
L. W. Getzin
Publikováno v:
Bulletin of Environmental Contamination and Toxicology. 18:499-502
Autor:
L. W. Getzin, Keith S. Pike
Publikováno v:
Journal of Economic Entomology. 74:385-388
The chemical persistence and vertical movement of chloropyrifos 4EC in a loam soil were compared with respect to time of posttreatment sprinkler irrigation. Irrigation intervals of 0, 2, and 6 days posttreatment, together with a nonirrigated control,
Autor:
R. W. Matthews, Ronald W. Hodges, L. R. Nault, L. W. Getzin, H. D. Newson, R. R. Painter, R. E. Menzer, J. B. Kring, P. B. Kannowski, R. J. Lavinge, H. E. Evans, E. E. Ortman, Orley R. Taylor, R. C. Axtell, R. A. Brust, R. W. Williams, G. E. Ball, J. L. Libby, R. M. Hollingsworth, R. A. Morse, S. C. Hoyt, James A. Slater, S. T. Beck, R. H. Grothaus, A. A. LaPlante
Publikováno v:
Bulletin of the Entomological Society of America. 22:86-90
Autor:
L. W. Getzin
Publikováno v:
Journal of Economic Entomology. 75:1029-1033
Yellow-orange, disposable sticky traps were used to determine seasonal occurrence and infestation levels of Psila rosae (F.) adults in commercial carrot fields. Three distinct periods of fly activity, representing two complete and a partial third gen