Daily consumption and predation rate of different Stethorus punctillum instars feeding on Tetranychus urticae

dc.contributor.author	Ragkou, VS	en
dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Kavallieratos, NG	en
dc.contributor.author	Tomanovic, Z	en
dc.date.accessioned	2014-06-06T06:45:56Z
dc.date.available	2014-06-06T06:45:56Z
dc.date.issued	2004	en
dc.identifier.issn	03342123	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/2718
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-1942438663&partnerID=40&md5=7ab99df764f3eaf8550ecf99cf0824d4	en
dc.subject	Daily consumption	en
dc.subject	Prey stage preference	en
dc.subject	Stethorus punctillum	en
dc.subject	Tetranychus urticae	en
dc.subject.other	Acari	en
dc.subject.other	Araneae	en
dc.subject.other	Arthropoda	en
dc.subject.other	Coccinellidae	en
dc.subject.other	Coleoptera	en
dc.subject.other	Invertebrata	en
dc.subject.other	Stethorus	en
dc.subject.other	Tetranychidae	en
dc.subject.other	Tetranychus	en
dc.subject.other	Tetranychus urticae	en
dc.title	Daily consumption and predation rate of different Stethorus punctillum instars feeding on Tetranychus urticae	en
heal.type	journalArticle	en
heal.publicationDate	2004	en
heal.abstract	Laboratory experiments were conducted to evaluate the prey stage preference and the daily consumption of each stage of the coccinellid predator Stethorus punctillum Weise (Coleoptera: Coccinellidae) feeding on the two-spotted spider mite Tetranychus urticae (Koch) (Acari: Tetranychidae). Groups of different life stages of the prey were offered (eggs, larvae, nymphs and adults). The prey preference varied with the stage of S. punctillum. First larval instars had no significant preference among the T. urticae stages offered. Second larval instars consumed significantly more spider mite larvae in comparison with nymphs. In contrast, third larval instars indicated a strong preference for mite eggs. Significantly fewer T. urticae larvae were consumed by the fourth larval instars of S. punctillum, in comparison with the three other mite stages. Finally, adult predators consumed significantly more mite eggs than the other stages offered. This preferential trend was similar for all adults tested, whether during the pre-oviposition or the oviposition period.	en
heal.journalName	Phytoparasitica	en
dc.identifier.issue	2	en
dc.identifier.volume	32	en
dc.identifier.spage	154	en
dc.identifier.epage	159	en