Results 241 to 250 of about 9,417,936 (292)

Control of Elm Leaf Beetles on Siberian Elm, 1979

Insecticide and Acaricide Tests, 1980
Abstract The test was conducted on a windbreak planting of Siberian elms, approximately 20 feet in height, located 2 miles south of Stillwater, Oklahoma. Trees were treated on May 31'79 when the temperature was 84°F and the wind velocity was 0-5 mph. Larvae were 1/8 to 3/8 inch in length.
Richard Price, Ken Pinkston, Jerry Young
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Anatomy of Elms Injected to Control Dutch Elm Disease

Arboriculture & Urban Forestry, 1980
American elm trees that had widely separated vessels, compartmentalized discolored wood associated with injection wounds to small volumes. Discolored wood associated with the injection wounds was confined to tissues present at the time of wounding. The relationship of anatomical features to the degree of compartmentalization of discolored wood and to ...
Alex Shigo, Richard Campana, Fay Hyland, Janet Anderson   +3 more
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Control of Elm Leaf Beetles on Siberian Elm, 1981

Insecticide and Acaricide Tests, 1982
Abstract The test was conducted on a windbreak planting of Siberian elms, approximately 20 ft tall, located 2 mi south of Stillwater, OK. Trees were treated on Jul 8 when the temperature was 85°F and the wind velocity was 15-20 mph. Larvae were 3-7 mm long.
Ed King, Ken Pinkston, Richard Price
openaire   +1 more source

Control of Elm Leaf Beetles on Siberian Elm, 1984

Insecticide and Acaricide Tests, 1985
Abstract The test was conducted at the OSU Horticulture Research Farm outside of Stillwater, OK. Field-grown Siberian elms 10-15 ft high were treated to runoff on 5 Jun when the temperature was 83°F and the wind velocity was 10-15 mph. The majority of the larvae were 1st instar, approximately 3/16 inches long.
Ed King, Richard Freeman, Ken Pinkston, Richard Price   +3 more
openaire   +1 more source

Control of ELM Leaf Beetle on Siberian Elms, 1987

Insecticide and Acaricide Tests, 1988
Abstract Tests were conducted on 2 windbreak plantings of Siberian elm. The trees in Test 1 were 15-20 ft high and located 2 miles south of Stillwater, Okla. In Test 2, trees were 10-15 ft high and located 1 mile south of Stillwater. Both plantings were treated on 21 May.
Richard Price, Jodie Gladin, Ken Pinkston   +2 more
openaire   +1 more source

Control of Elm Leaf Beetles on Siberian Elm, 1982

Insecticide and Acaricide Tests, 1983
Abstract The test was conducted on a windbreak planting of Siberian elmjj, approximately 20 ft tall, located 2 mi south of Stillwater, Oklahoma. Trees were treated on Jul 26 when the temperature was 92 F and the wind velocity was 5-10 mph. A majority of the larvae were in 2nd and 3rd instar, approximately 8-12 mm long.
Ed King, Julie Foltz, Ken Pinkston, Richard Price   +3 more
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Elm, Control of Elm Leaf Beetle Larvae, Wooster, Ohio, 1990

Insecticide and Acaricide Tests, 1992
Abstract Elm, 2-2.5 m tall, growing in a research plot at the OSU/OARDC campus in Wooster, OH, were used to evaluate insecticides against late instar elm leaf beetle larvae. Elm twigs, 15-25 cm long, infested with 3-10 larvae each, were removed from trees in Columbus, OH, 7 Aug, placed in plastic bags, and immediately transported to ...
D. G. Nielsen, M. J. Dunlap
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Elm, Control of Elm Leaf Beetle Larvae, Delaware, Oh, 1989

Insecticide and Acaricide Tests, 1991
Abstract Elm, 2-2.5 m tall, growing in 3-gal containers were used to evaluate efficacy of selected pesticides against elm leaf beetle. A KWH backpack misfblower operating at low-throttle on aperature setting #2 for 15 s was used to apply 100 ml of finished spray to each plant.
D. G. Nielsen, M. J. Dunlap
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ELM frequency feedback control on JET

Nuclear Fusion, 2015
This paper describes the first development and implementation of a closed loop edge localized mode (ELM) frequency controller using gas injection as the actuator. The controller has been extensively used in recent experiments on JET and it has proved to work well at ELM frequencies in the 15–40 Hz range. The controller responds effectively to a variety
Lennholm, M., Beaumont, P.S., Carvalho, I.S., Chapman, I.T., Felton, R., Frigione, D., Garzotti, L., Goodyear, A., Graves, J., Tsalas, M., Grist, D., Jachmich, S., Lang, P., Lerche, E., de la Luna, E., Mooney, R., Morris, J., Nave, MF F, Rimini, F., Sips, G., Solano, E., Contributors, JET-EFDA   +21 more
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Dutch Elm Disease Control: Sanitation Improved by Girdling Infected Elms

Arboriculture & Urban Forestry, 1982
For 5 years three alternative treatments to improve the efficacy of municipal sanitation programs for controlling Dutch elm disease (DED) were compared to the sanitation practice in which one disease survey was made each year and diseased elms were removed in late fall and winter.
Jack Barger, William Cannon, S. Robert DeMaggio   +2 more
openaire   +1 more source