Results 261 to 270 of about 68,194 (309)
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The Alfalfa Weevil in Alfalfa Meal
Journal of Economic Entomology, 1929The 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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Blue Alfalfa Aphid and Egyptian Alfalfa Weevil Control on Alfalfa, 1981
Insecticide and Acaricide Tests, 1982Abstract Thirteen materials were applied to alfalfa Feb 18. Plants averaged 12 inches high and the field had been flood-irrigated Feb 15. Plots measured 8 ft x 150 ft with 4 replicates in a randomized block design. Applications were made with a small plot pressurized sprayer at the rate of 15 gpa using 40 psl.
D. M. Tuttle, C. H. Mullis
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Alfalfa, Egyptian Alfalfa Weevil and Blue Alfalfa Aphid Control, 1978
Insecticide and Acaricide Tests, 1980Abstract Experiment No. 1 (table 1) was conducted on variety Lahonton in the Antelope Valley near Lancaster, Calif. This southern desert valley has an elevation of ca. 2400 ft and winter temperatures may go below 15-20° F in Dec and Jan. Only dormant alfalfa varieties are grown there.
V. M. Stern, W. R. Bowen
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Alfalfa Weevil Control in Alfalfa, 1992
Insecticide and Acaricide Tests, 1993Abstract Experimental plots measuring 7.6 m2 (25 ft2) were established in a 6-yr-old field of ‘Oneida VR’ alfalfa in the vegetative state located in Ithaca, NY. Soils were silt loam. Nine treatments and 1 untreated check were replicated 4 times in a randomized complete block design.
E. J. Shields, P. S. Taylor
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Control of Alfalfa Webworm on Alfalfa, 1987
Insecticide and Acaricide Tests, 1988Abstract 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.
J. L. Hellman, T. W. Patton
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Alfalfa Weevil Control in Alfalfa, 1991
Insecticide and Acaricide Tests, 1992Abstract 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
E. J. Shields, P. S. Taylor
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A Biotype of the Spotted Alfalfa Aphid on Alfalfa
Journal of Economic Entomology, 1960In 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 +2 more
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Alfalfa Weevil Control in Alfalfa, 1980
Insecticide and Acaricide Tests, 1982Abstract This test was conducted at Beltsville on a 1-yr-old stand of alfalfa. Damage was severe (100%) and pre-counts averaged 105 larvae/sweep. Treatment plots were 10 ft x 15 ft and arranged in a randomized complete block design with 4 replicates. Pre-counts and treatments were made on May 6.
John L. HelIman +4 more
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Alfalfa Weevil Control in Alfalfa, 1977
Insecticide and Acaricide Tests, 1979Abstract The alfalfa var Saranac AR stand was 3 years old and nearing full bud stage of development at time of treatment. Tip damage levels varied from 30-50% within the test area and precounts average 6 larvae/10 stems. Treatment plots were 10 ft x 10ft and arranged in a randomized complete block design with 3 replicates.
John L. Hellman, Robert Rouse
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