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Harmonia axyridis Pallas(Coleoptera:Coccinellidae):Biological aspects and thermal requirements

Advances in Entomology 2014年第1期2卷 42-46页

作者： Tatiana de Oliveira Ramos Terezinha Monteiro dos Santos-cividanes francisco jorge cividanes Lais da Conceicao dos Santos Department of Plant Health Faculdade de Ciencias Agrarias e VeterinariasUniversidade Estadual PaulistaJaboticabalBrazil Agencia Paulista de Tecnologia dos Agronegocios(APTA) Regional Centro LesteRibeirao PretoBrazil

The aim of this study was to determine the biological aspects and thermal requirements of Harmonia axyridis Pallas (Coleoptera: Coccinellidae) fed daily with Anagasta kuehniella (Zeller) (Lep-idoptera: Pyralidae) eggs. Under laboratory conditions, the experiment was carried out in acclimatized chambers set to 18°C, 21°C, 24°C, 27°C, and 30°C. Larvae of H. axyridis were separated, kept in a glass tube, and fed with A. kuehniella eggs. The Asiatic lady beetle adults were separated into 20 couples and kept in plastic cups receiving the same food as the larvae. The length of the larval, pupal, and total biological cycle (from egg to adult) stages declined significantly from 18°C to 27°C, but was stable between 27°C and 30°C. Survival was similar for larvae from the first to the fourth stadium when kept at 18°C, 21°C, and 24°C with a higher total biological cycle survival at 27°C. H. axyridis males presented higher longevity at 18°C and 21°C in comparison to females that had a longer life and a higher fecundity at 24°C and 27°C, respectively. The lower thermal limit for biological cycle development was 12.4°C, and the thermal constant was 243.9 degree-days.

关键词： Anagasta kuehniella Biological Control Degree-Days

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Occurrence of Carabid Beetles in the Phenological Stages of Weedy Plants

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Advances in Entomology 2018年第2期6卷 176-188页

作者： francisco J. cividanes Terezinha M. dos Santos-cividanes Alex A. Ribeiro Plant Protection Department Paulista State University Jaboticabal Brazil Sã o Paulo Agency for Agribusiness Technology Ribeir&atilde o Preto Brazil

In the current study, we investigated the relationship between the abundance of carabid species (Coleoptera: Carabidae) and the phenological stages of weedy plants growing in edge habitats. A survey of carabid beetles was conducted in edge habitats between forest fragments and soybean/corn crops or orange orchards in five sites located in northeastern S?o Paulo state, Brazil, from November 2005 to May 2008. Beetles were captured with pitfall traps, and multiple regression analysis was used to determine the carabid species that prevailed on each of the phenological stages of weeds. In total, 1115 individuals, representing 26 genera and 52 species, were captured. Selenophorus species, mainly Selenophorus seriatoporus Putzeys, Selenophorus sp.4, Helluomorphoides squiresi (Chaudoir), Tetragonoderus laevigatus Chaudoir, Athrostictus sp.1 were abundant during the reproductive phenological stages of weedy plants, which suggests that these carabid species might prefer to feed on the seeds of weedy plants.

关键词： Abundance Ground Beetle Phenology Seed Consumption Weed

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