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Insecticidal Reduction of Carpenterworm and Lilac Borer Infestations in Green Ash in North and South Dakota shelterbelts

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dc.contributor.author McKnight, Melvin E.
dc.contributor.author Stein, John D.
dc.contributor.author Tagestad, Arden D.
dc.contributor.author Dix, Mary Ellen
dc.rights North Dakota State University en
dc.title Insecticidal Reduction of Carpenterworm and Lilac Borer Infestations in Green Ash in North and South Dakota shelterbelts en
dc.type Article en
dc.source ND Farm Research: Vol. 36, No.5, p. 26-29 en
dc.description This paper describes three insecticide demonstrations for control of carpenterworm, Prionoxystus robinae (Peck), and Iilac borer, Podosesia syringae Harris, in infested green ash shelterbelts in North Dakota and South Dakota. The number of trees infested with carpenterworms within test shelterbelts was reduced after 3 to 4 years by annual applications of Dursban (chloropyrifos) (1.0%), lindane (1.0%) or methoxychlor (1.0%). One spring application of chloropyrifos (1.0%) or lindane (0.5%) controlled lilac borer in infested shelterbelts, In a third demonstration, chloropyrifos (0.25% and 0.5%), lindane (0.5%) and endosulfan (0.5%) reduced the number of trees infested with lilac borers within the field shelterbelts by 86 to 92 per cent. Dursban (0.25%) was effective in half the dosage rate now recognized for lilac borer control. en
dc.date.accessioned 2009-06-19T16:22:03Z
dc.date.available 2009-06-19T16:22:03Z
dc.date.issued 2009-06-19T16:22:03Z
dc.identifier.uri http://hdl.handle.net/10365/5067
dc.date 1979 en
dc.subject Plant diseases and disorders en
dc.subject Pest control en
dc.subject Chemical control en
dc.subject Insects en

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