Skip navigation
Please use this identifier to cite or link to this item:
Files in This Item:
File Description SizeFormat 
ARTIGO_VariaçõesSazonaisMigração.pdf716,99 kBAdobe PDFView/Open
Title: Variações sazonais da migração de myzus persicae em Campinas nos anos de 1967 a 1969
Other Titles: Seazonal variation of myzus persicae migrations at Campinas, during the years of 1967 to 1969
Authors: Costa, Cláudio Lúcio
Assunto:: Inseto
Issue Date: Jan-1970
Publisher: Instituto Agronômico de Campinas
Citation: COSTA, C. L. Variações sazonais da migração de Myzus persicae em Campinas, nos anos de 1967 a 1969.. Bragantia, Campinas, SP, v. 29, p. 347-359, jan. 1970. Disponível em: <>. Acesso em: 14 abr. 2014.
Abstract: Para estudar as variações sazonais do número de migrantes de Myzus persicae (Sulz.) em Campinas, foram utilizadas armadilhas de dois tipos, para a sua coleta: a de sucção e a de água. Fêmeas vivíparas, partenogenéticas, aladas, da espécie, foram coletadas em todas as semanas durante os anos de 1967, 1968 e 1969. A presença de alguns raros machos foi também registrada. A armadilha de água coletou sempre maior número de indivíduos do que a de sucção, durante todo o período de observações. Entretanto, as curvas que representam as variações semanais e mensais do número de migrantes da espécie, construídas com as amostras obtidas por ambos os tipos de armadilhas, têm a mesma forma. As maiores migrações se deram nos meses de maio a setembro. A proporção de exemplares de M. persicae em relação ao total das espécies coletadas foi sempre maior na armadilha de água do que na de sucção.
Abstract: A study was made of the seazonal variations in the numbers of migrants of the aphid Myzus persicae (Sulzer) at Campinas, State of São Paulo, by sampling aerial populations from 1967 through 1969, with a suction trap and a yellow water trap. Weekly catches were recorded for both traps and summed up to give month totals. Alate viviparous parthenogenetic females of Myzus persicae were caught every week of the years of 1967 to 1969. This is an evidence that in the Campinas region (22° 50' S) there was no limiting factor to suppress parthenogenetic reproduction and inhibit flight during the period of observations. However, the trapping of males seems to indicate that an holocyclic multiplication of Myzus persicae may also exist. Where the oviparous female or other morphs of the species does also accur at Campinas, is not known. The period when most of migration took place as revealed by samples taken by both traps occurred from May to September. The yellow water trap caught more Myzus persicae than the suction trap, but curves of annual distribution of alates trapped have the same shape. The ratio between the numbers of this aphid in the two types of traps remained rather constant, throughout two years, varying from 2.3 to 6.0. This means that water trap catches were related to estimates of aerial density produced by the suction trap, a more precise apparatus for this determination, which does not exert attraction to the aphid species (20). Thus water trap may be used to the best advantage to collect Myzus persicae where an electricity supply to run the suction trap is lacking and / or when numbers of alate in the air are low. The proportion of Myzus persicae in relation to the total of species caught was also higher for the yellow water trap. In February, March, June, July and October of 1967 and June and July of 1968, 50% of aphid species caught in the water trap were Myzus persicae. It represents 35% of total caught from May to October of 1969. In the suction trap the highest proportion of this species was 20% in June, 1968. This difference is attributed to the selective attractiveness of yellow color to aphia species.
Licença:: Bragantia - Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons (Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)). Fonte: Acesso em: 14 abr. 2014.
Appears in Collections:FIT - Artigos publicados em periódicos e preprints

Show full item record Recommend this item " class="statisticsLink btn btn-primary" href="/handle/10482/15811/statistics">

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.