Effects of Neem-Based and Chemical Insecticides on Some Arthropods in Alfalfa
dc.authorscopusid | 6603433461 | |
dc.authorscopusid | 55469288700 | |
dc.authorscopusid | 6506033137 | |
dc.contributor.author | Yardim, E.N. | |
dc.contributor.author | Ozgen, I. | |
dc.contributor.author | Kulaz, H. | |
dc.date.accessioned | 2025-05-10T17:50:56Z | |
dc.date.available | 2025-05-10T17:50:56Z | |
dc.date.issued | 2001 | |
dc.department | T.C. Van Yüzüncü Yıl Üniversitesi | en_US |
dc.department-temp | Yardim E.N., Yuzuncu Yil Universitesi, Ziraat Fakultesi, Bitki Koruma Bolumu, Van, 65080, Turkey; Ozgen I., Yuzuncu Yil Universitesi, Ziraat Fakultesi, Bitki Koruma Bolumu, Van, 65080, Turkey; Kulaz H., Yuzuncu Yil Universitesi, Ziraat Fakultesi, Bitki Koruma Bolumu, Van, 65080, Turkey | en_US |
dc.description.abstract | In this study, we tested the effects of two different doses of neem (azadirachtin) on the alfalfa weevil, Hypera variabilis Hbst. (Coleoptera: Curculionidae), aphids and predators (Coccinellids, anthocorids, chrysopids and spiders) and compared the effects with those of a broad spectrum insecticide (malathion) in a controlled experiment in 1998 and 1999. Malathion treatments reduced alfalfa weevil densities significantly (p < 0.01) by 77.9 and 87.4% in 1998 and 1999, respectively. Alfalfa weevil numbers in the low dose neem-treated plots were lower by 45.2% in 1998 and 50.2% in 1999. There were 45.3% fewer alfalfa weevils in the high dose neem-treated plots in 1999. In 1998, aphid numbers were reduced by 11.1, 25.3 and 41% in the low dose neem-treated plots, the malathion-treated plots and the high dose neem-treated plots, respectively. Aphids were more abundant in the malathion-treated plots, whereas they were fewer in the neem-treated plots compared to the control in 1999. The treatments did not have any significant effects on the total numbers of predators. | en_US |
dc.identifier.endpage | 524 | en_US |
dc.identifier.issn | 1373-7503 | |
dc.identifier.issue | 2 a | en_US |
dc.identifier.pmid | 12425073 | |
dc.identifier.scopus | 2-s2.0-0035756670 | |
dc.identifier.scopusquality | N/A | |
dc.identifier.startpage | 519 | en_US |
dc.identifier.uri | https://hdl.handle.net/20.500.14720/17911 | |
dc.identifier.volume | 66 | en_US |
dc.identifier.wosquality | N/A | |
dc.language.iso | en | en_US |
dc.relation.ispartof | Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.title | Effects of Neem-Based and Chemical Insecticides on Some Arthropods in Alfalfa | en_US |
dc.type | Article | en_US |