Results 271 to 280 of about 6,842,647 (311)
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Siberian Elm, Elm Leaf Beetle Control, 1977
Insecticide and Acaricide Tests, 1978Abstract A native planting of Siberian elms, approximately 15 ft in height located 8 miles east of Stillwater, Oklahoma, were selected for this test. Trees were treated on June 10 after a large egg hatch was observed. Larvae were 1/8 to 3/8 inch in length.
Richard Price +3 more
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Elm Leaf Beetle Control on Siberian Elm, 1991
Insecticide and Acaricide Tests, 1992Abstract This test was conducted on elm trees 15-20 ft tall and 8-10 ft wide growing in an ornamental planting located at a local residence. Treatments were arranged in a randomized complete block with 3 replications. Applications were made on 4 Jun using a Marco R-20 sprayer which delivered 1.2 gal/min at 150 psi.
M. Doss, K. Pinkston
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Control of Elm Leaf Beetles on Siberian Elm, 1979
Insecticide and Acaricide Tests, 1980Abstract 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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Control of Elm Leaf Beetles on Siberian Elm, 1981
Insecticide and Acaricide Tests, 1982Abstract 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
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Elm, Control of Elm Leaf Beetle Larvae, Delaware, Oh, 1989
Insecticide and Acaricide Tests, 1991Abstract 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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Trunk Banding to Control Elm Leaf Beetle
Arboriculture & Urban Forestry, 1990AbstractElm leaf beetle (ELB) feeding injury was reduced by carbaryl trunk bands during a five-year study in northern California. The magnitude of injury reduction varied from year to year and appeared to be influenced by the proximity of untreated elms and yearly fluctuations in ELB populations. Banding one time per year using 1 % carbaryl (Sevin SL®)
Laurence R. Costello +3 more
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Chemical Mixtures for Control of Winged Elm
Weed Science, 1975Various growth regulators, carrier systems, and ammonium thiocyanate (NH4SCN) additions in combination with herbicide mixtures were evaluated for their foliar phytotoxicity to winged elm (Ulmus alataMichx.). Silvex [2-(2,4,5-trichlorophenoxy)propionic acid] and 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid] were more effective than the dichlorophenoxy ...
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Elm Leaf Beetle Control with Carbofuran, 1986
Insecticide and Acaricide Tests, 1987Abstract On 15 Apr, 11 juvenile American elm trees were randomly selected and treated with Furdan 15G, (carbofuran) at the rate of lg per 2.54 cm. trunk diameter at ground level. A second group of 11 trees served as untreated experiment controls. All trees ranged from 4 to 6 m tall and 10 to 17 cm trunk diameter at ground level.
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Trap Trees for Control of Dutch Elm Disease
Arboriculture & Urban Forestry, 1989Diseased or unwanted elms treated with cacodylic acid or monosodium methylarsonate (MSMA) by injection or topical application to axe or chain saw cuts are colonized by elm bark beetles, but herbicide-induced drying of the bark suppresses brood production.
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Developing hybrid ELM-ALO, ELM-LSO and ELM-SOA models for predicting advance rate of TBM
Transportation Geotechnics, 2022Edy Tonnizam Mohamad +2 more
exaly