Results 341 to 350 of about 217,003 (367)

The Alfalfa Weevil in Alfalfa Meal [PDF]

Journal of Economic Entomology, 1929
The spread of the alfalfa weevil through the medium of alfalfa hay and meal has been studied throughout a period of thirteen months. The conclusion is drawn that the large number of weevils present in the growing crop diminishes with each step in the handling of the hay so that the accumulation on the premises of an alfalfa meal mill, even at the end ...
W. H. Larrimer, George I. Reeves
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Resistance of Alfalfa to the Spotted Alfalfa Aphid12

Journal of Economic Entomology, 1970
Single sterns with1 trifoliolate leaf from susceptible (C-Al) and resistant (C-84) alfalfa clones were placed in aqueous solutions of amino acids, sugars, or juices expressed from the 2 plants. After a day the trifoliolates were charged with adult Therioaphis maculata (Buckton) and insect behavior was noted for the succeeding 3 days.
Frank V. Lieberman, Ronald L. Misiorowski, Henry W. Kircher   +2 more
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A Biotype of the Spotted Alfalfa Aphid on Alfalfa

Journal of Economic Entomology, 1960
In February 1958, near El Centro, California, symptoms of susceptibility to the spotted alfalfa aphid ( Therioaphis maculate (Buckton)) were observed in the previously resistant alfalfa clone N(evada)-1018. A series of tests from March to October demonstrated that a biotype, designated ENT A, was capable of surviving and reproducing on three of the ...
G. R. Pesho, F. V. Lieberman, W. F. Lehman   +2 more
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Alfalfa Weevil Control in Alfalfa, 1991

Insecticide and Acaricide Tests, 1992
Abstract Experimental plots measuring 7.3 × 7.3 m (24 × 24 ft) were established in a 5-yr-old field of ‘Oneida VR’ alfalfa in the early bud stage located in Ithaca, NY. Soils were silt loam. Eleven treatments and 2 untreated checks were replicated 4 times in a randomized complete block design. Treatments were applied on 21 May with a C02
P. S. Taylor, E. J. Shields
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Control of Alfalfa Webworm on Alfalfa, 1987

Insecticide and Acaricide Tests, 1988
Abstract The test was established on a 1-yr-old stand of alfalfa near Worton in Kent County, Md. The field had been completely defoliated except for a small area where the test was conducted. At time of treatment on 1 Sep the alfalfa had been severely stressed by drought.
T. W. Patton, J. L. Hellman
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Breeding alfalfa cultivars resistant to the alfalfa weevil [PDF]

Euphytica, 1978
A ten-year study consisting of nine field experiments was conducted to evaluate alfalfa (Medicago sativa L.) for resistance to larval feeding by the alfalfa weevil (Hypera posticaGyllenhal). The results were consistent over years and experiments. Only one source of alfalfa germplasm, designated Starnes, showed resistance to larval feeding in the field ...
W. V. Campbell, W. V. Campbell, T. H. Busbice, T. H. Busbice, L. V. Bunch, L. V. Bunch, R. Y. Gurgis, R. Y. Gurgis   +7 more
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Control of Alfalfa Weevil on Alfalfa, 1980

Insecticide and Acaricide Tests, 1982
Abstract Tests were conducted in a 2-yr-old production alfalfa stand in Baltimore County. Pre-counts were made on May 12 and weevil larvae averaged 39 per dip sweep of a 15 inch standard size net. Treatment plots were 10 ft x 15 ft and arranged in a randomized complete block design with 4 replicates.
Kevin Levesque, Maria Frishman, William Curtis, Robert Hochmuth, Fern Bassow, John L. Hellman   +5 more
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Alfalfa Weevil Control in Alfalfa, 1977

Insecticide and Acaricide Tests, 1979
Abstract The Williamsburg variety of alfalfa selected for the test was a production field partially budded with 80% of the tip showing seevil feeding injury. Stand was 2 years old. Treatment plots wer 10 ft x 10 ft and arranged in a randomized complete block design with 3 replicates.
Robert Rouse, John L. Hellman
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Economic Injury Levels of the Egyptian Alfalfa Weevil or the Alfalfa Weevil or the Alfalfa Weevil12

Journal of Economic Entomology, 1975
Pre-season applications of heptachlor to alfalfa were used to establish gradients of Egyptian alfalfa weevil, Hypera brunneipennis Boheman, or alfalfa weevil, H. postica (Gyllenhal), larval levels. Correlations of larval numbers and 1st cutting hay yields disclosed that every increase of 1 larva/sweep at the larval peak was associated with a yield ...
Sara S. Rosenthal, C. S. Koehler
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Alfalfa saponins and alfalfa seeds

Atherosclerosis, 1980
Since alfalfa meal prevents hypercholesterolemia and atherosclerosis in rabbits and alfalfa saponins prevent the expected rise in cholesterolemia induced by dietary cholesterol in monkeys, the experiments being reported here were performed to determine whether alfalfa saponins affect atherogenesis in rabbits.
M.R. Malinow, M.R. Malinow, A. L. Livingston, A. L. Livingston, P. McLaughlin, P. McLaughlin, S. Stafford, S. Stafford, George O. Kohler, George O. Kohler   +9 more
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