Biologia de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae ) em abobrinha cultivar caserta (Cucurbita pepo L.) em diferentes temperaturas

Leite, Melissa Vieira; Santos, Terezinha Monteiro dos; Souza, Brígida; Calixto, Ana Maria; Carvalho, César Freire

doi:10.1590/s1413-70542008000500006

Cited by 18 publications

(14 citation statements)

References 10 publications

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“…These results are similar to those obtained by other researchers who have studied the biology of this aphid in several cotton cultivars under different environmental conditions Nakano 1981;Kersting et al, 1999;Michelotto et al, 2003;Pessoa et al, 2004), in chrysanthemum under different constant temperatures (Soglia et al, 2002;, and in Cucurbitaceae plants (Satar et al, 2005;Leite et al, 2008).…”

Section: Resultssupporting

confidence: 90%

Biological aspects of Aphis gossypii Glöver, 1877 (Hemiptera: Aphididae) on colored lint cotton cultivars

2013

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This paper outlines the results of a study into the biological aspects of Aphis gossypii Glöver on colored cotton cultivars through the construction of life tables. In addition, we evaluate the influence of density of gossypol glands and trichomes of leaves on the biology of the aphid. Tests were conducted in a climate chamber at 25 ± 2°C, with relative humidity (RH) at 70 ± 10%, and a photophase of 12 hours, using the cultivars BRS Rubi, BRS Safira, and BRS Verde. Newly hatched nymphs were individually isolated in petri dishes containing leaf discs of cotton cultivars on a layer of water-agar (1%) of approximately 5 mm thick. An evaluation of the trichomes and gossypol gland densities of the cotton leaf plants was performed under a stereomicroscope, delimited to an area of 1 cm², and a count and identification of those on the surface was made. The feed substrates that were evaluated influenced the nymphal stage of A. gossypii. BRS Verde provided the shortest duration and BRS Safira was the longest during this phase. The cultivar BRS Verde, with the lowest density of trichomes, provided a large number of nymphs and led to a higher net reproductive rate (R0). Given these results, conclusions can be drawn that the colored cotton cultivars influence the duration of nymphal and adult stages of A. gossypii. The cultivar with a high density of trichomes on leaves (BRS Safira) adversely affects the fertility parameters of A. gossypii.

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Section: Resultssupporting

confidence: 90%

Biological aspects of Aphis gossypii Glöver, 1877 (Hemiptera: Aphididae) on colored lint cotton cultivars

2013

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“…On cotton, A. gossypii is a pest species (Folsom 1932, Afshari et al 2009) with a preference for gathering on the underside of the leaves (Gonzaga et al 1991) and can colonize other plant structures. It sucks the sap and causes the leaves to shrivel as well as the buds to deform, damaging plant development and causing signiÞcant stunting (Leite et al 2006). In addition, A. gossypii can transmit viruses that cause red leaf and blue diseases (Santos et al 2004), excreting honeydew that is favorable to the development of the Capnodium spp.…”

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confidence: 99%

Within-Plant Distribution of Cotton Aphid (Hemiptera: Aphididae), in Cotton with Colored Fibers and Cotton-Fennel Intercropping System

Fernandes

Ramalho

Nascimento

et al. 2012

Annals of the Entomological Society of America

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It is known that intercropping systems maintain biodiversity and control pest populations. The aim of this study was to describe the vertical and horizontal distribution of the cotton aphid, Aphis gossypii Glover, within the cotton plant (Gossypium hirsutum L.) in cotton with colored fibers and cotton-fennel (Foeniculum vulgare Miller) intercropping system over time, during two cotton seasons. Measurements of the aphid population's dynamics and distribution in the cotton plants were recorded at intervals of 7 d, from plant emergence until the appearance of the first open bolls. The number of aphids and their specific locations on the plant were recorded in relation to reference points (nodes on the plant's main stem as well as on leaves and fruit structures). The number of cotton aphids found on the cotton crop (11,444 cotton aphids) was significantly higher than the number found on the cotton-fennel intercrop (8,106). Considering the vertical distribution of cotton aphids on the plants, no significant interactions were observed among the crop system, plant age and plant region, between the crop system and plant age, or between the crop system and plant region. In the cotton system, aphid populations peaked between 74 and 95 d, whereas in the cotton-fennel intercropping system, aphid populations peaked between 74 and 102 d. The results obtained in this study could be useful in decision-making, implementing controls and determining the timing of population peaks of this aphid.

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“…Esses resultados assemelharam-se àqueles encontrados para esse mesmo afídeo por Soglia et al (2002), Pessoa et al (2004) e Satar et al (2005), Leite et al (2008), usado como plantas hospedeiras a abobrinha, o crisântemo, o algodoeiro e a planta de pepino, respectivamente.…”

Section: Desenvolvimento E Ciclo Biológicounclassified

Efeitos de fungicidas sobre os aspectos biológicos de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em plantas de pepino

et al. 2010

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RESUMOObjetivou-se, neste trabalho avaliar os efeitos de alguns fungicidas protetores utilizados na cultura de pepino sobre o pulgão Aphis gossypii Glover, 1877. Os experimentos foram conduzidos em condições controladas (Temp.: 25±2 o C; UR: 70±10% e fotofase de 12 h). O delineamento experimental foi inteiramente ao acaso com quatro tratamentos (fungicidas e testemunha) e 45 repetições, sendo cada parcela composta por um indivíduo. Os fungicidas utilizados e suas respectivas dosagens em g i.a.L -1 , foram: enxofre 800 PM (1,6), mancozebe 800 PM (1,6) e oxicloreto de cobre 840 PM (1,49). A testemunha foi composta por água destilada. Todos os produtos avaliados não influenciaram na duração em dias da fase ninfal e adulta, períodos pré-reprodutivos e reprodutivos de A. gossypii. Houve efeito do enxofre e do oxicloreto de cobre sobre o período pós-reprodutivo desse pulgão, constatando-se um período 4,5 vezes superior àquele da testemunha e mancozebe. A fecundidade foi influenciada pelos fungicidas testados, ocorrendo aumento de 1,25 vezes na produção total de ninfas, sendo então os fungicidas testados favoráveis ao inseto.Termos para indexação: Cucurbitaceae, pulgão-do-algodoeiro, pesticida. ABSTRACTThe objective of this work was to evaluate the toxic effects of some protecting fungicides used in cucumber crop on the aphid Aphis gossypii Glover, 1877. The experiments were conducted in controlled conditions (Temp.: 25±2 o C; RH: 70±10% and 12 h photophase). The experimental design was completely randomized with four treatments (fungicides and control) and 45 replicates, each plot comprised of one individual. The used fungicides and their respective dosages in g a.i. L -1 were: sulfur 800 PM (1.6), mancozeb 800 PM (1.6) and copper oxichloride 840 PM (1.49). The control was composed of water. None of the tested products influenced the duration in days of the nymphal and adult phases, or the pre-reproductive and reproductive periods of A. gossypii. Sulfur and copper oxichloride affected the post-reproductive period of the aphid, which showed a period 4.5 times longer than that of the control and mancozeb. Fecundity was influenced by the tested fungicides, with a 1.25 fold increase in the total production of nymphs, so that tested fungicides were favorable to the insect.

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Biologia de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae ) em abobrinha cultivar caserta (Cucurbita pepo L.) em diferentes temperaturas

Cited by 18 publications

References 10 publications

Biological aspects of Aphis gossypii Glöver, 1877 (Hemiptera: Aphididae) on colored lint cotton cultivars

Biological aspects of Aphis gossypii Glöver, 1877 (Hemiptera: Aphididae) on colored lint cotton cultivars

Within-Plant Distribution of Cotton Aphid (Hemiptera: Aphididae), in Cotton with Colored Fibers and Cotton-Fennel Intercropping System

Efeitos de fungicidas sobre os aspectos biológicos de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em plantas de pepino

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