Dinâmica populacional e efeitos da temperatura ambiental e precipitação pluviométrica sobre Astylus variegatus (Germar, 1824) e A. sexmaculatus (Perty, 1830) (Coleoptera; Dasytidae)

Matioli, José C.; Figueira, Andria Raiane Barbosa

doi:10.1590/s0071-12761988000100009

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The presence of this family in the dry season may be a strategy to reduce competition with other groups of insects that are more abundant in the rainy season. Studies conducted in the state of Minas Gerais also registered a greater abundance of Melyridae representatives early in the dry period (Matioli and Figueira, 1988). Adults of Cleridae are, in their majority, predators of larvae of wood borer beetles (Casari and Ide, 2012), a food resource available throughout the year, which may have allowed the collection of these insects during the dry period.…”

Section: Discussionmentioning

confidence: 99%

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Oliveira

Specht

et al. 2021

Rev. Bras. entomol.

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Section: Discussionmentioning

confidence: 99%

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Oliveira

Specht

et al. 2021

Rev. Bras. entomol.

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“…Adults were found from January to June and high temperatures were the main factor associated with the occurrence and movement of beetles in the field (Rossetto & Rossetto, 1976;Matioli & Figueira, 1988). Damage caused by adults were reported on sorghum panicles in which losses reached 5% (Rossetto & Rossetto, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…Bright yellow is reported as attractive to A. variegatus beetles (Matioli & Figueira, 1988;Gonçalves, 1997). Several yellow traps attract and capture A. variegatus (Matioli et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Attraction of Astylus variegatus (Germ.) (Coleoptera: Melyridae) by volatile floral attractants

Ventura

Pereira

Nunes

et al. 2007

Sci. agric. (Piracicaba, Braz.)

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The beetle Astylus variegatus (Germ.) (Coleoptera: Melyridae) is frequently found in flowers feeding on pollen. Responses of A. variegatus to volatile floral attractants were studied in common beans (Phaseolus vulgaris L.) fields. Traps originally designed to capture Diabrotica speciosa (Germ.) (Coleoptera: Chrysomelidae), consisted of plastic bottles (2 L) with 150 holes (5-mm diameter) yellow gold painted and containing inside a plastic strip (3.5 × 25 cm) with Lagenaria vulgaris (L.) powder (0.28% B cucurbitacin -feeding stimulant and arrestant for diabroticites) sprayed with carbaril insecticide. Treatments consisted of 1,4-dimethoxybenzene (one or two dispensers per trap), 1,4-dimethoxybenze + indole, 1,4-dimethoxybenzene + cinnameldehyde and control. Volatile average release rates (over ten days) was approximately 32 mg day -1 per dispenser under laboratory conditions. 1,4-dimethoxybenzene-lured traps caught significantly more beetles than the control, three and seven days after trap setting. Ten days after the onset of the experiment, there were no differences in number of beetles caught by treatments. Captures were higher in the 1,4-dimethoxybenzene + cinnamaldehyde treatment than in 1,4-dimethoxybenzene only in the first assessment. Adding indole to 1,4-dimethoxybenzene did not improve beetle captures. Key words: Diabrotica speciosa, semiochemical, trap ATRAÇÃO DE Astylus variegatus (GERM.) (COLEOPTERA: MELYRIDAE) POR ATRAENTES FLORAIS VOLÁTEISRESUMO: O besouro Astylus variegatus (Germ.) (Coleoptera: Melyridae) é freqüentemente encontrado em flores onde se alimenta de pólen. Respostas de A. variegatus a atraentes voláteis florais foram estudadas em campos de feijão, Phaseolus vulgaris L. Armadilhas, originalmente desenvolvidas para capturar Diabrotica speciosa (Germ.) (Coleoptera: Chrysomelidae), consistiram de garrafas plástica (2 L) com 150 perfurações (5 mm de diâmetro) pintadas com tinta amarelo ouro contendo no seu interior uma fita plástica (3,5 × 25,0 cm) com pó seco de frutos de Lagenaria vulgaris (L.) (0,28% de cucurbitacina B -estimulante alimentar e arrestante para diabroticíneos) pulverizados com inseticida carbaril. Os tratamentos foram: 1,4-dimetoxibenzeno (um ou dois liberadores por armadilha); 1,4-dimetoxibenzeno + indol; 1,4-dimetoxibenzeno + cinamaldeído e testemunha (sem volátil). As taxas de liberação dos semioquímicos (por 10 dias) foram de aproximadamente 32 mg dia -1 por liberador em condições de laboratório. Armadilhas iscadas com 1,4-dimetoxibenzeno capturaram mais insetos que a testemunha, três e sete dias após instalação das armadilhas. Dez dias após o início dos experimentos, não foram verificadas diferenças entre os tratamentos, no número de besouros capturados. Capturas foram maiores no tratamento com 1,4-dimetoxibenzeno + cinamaldeído do que no 1,4-dimetoxibenzeno sozinho na primeira avaliação. Adição do indole ao 1,4-dimetoxibenzeno não aumentou as capturas.

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“…Atacando em surtos acarretam grande redução no 'stand, que é associada, pelos agricultores, problemas relacionados à qualida de das sementes. Estas larvas, densamente cobertas por longos pelos marrons, receberam o nome comum de larvas-angorá" e seus danos são destacados quando ocorrem períodos secos ou vera nicos logo após o plantio:seu controle é difícil, uma vez que precisa ser preventivo pelas características do seu ataque (MATIOLI & FIGUEIRA, 1988).…”

Section: Introductionunclassified

“…Não são atraidos pela luz (LOUW, 1954), provável razão de poucos exemplares de A. variegatus terem sido capturados em armadilhas lumi nosas por SILVEIRA NETTO (1972) . Todavia observa-se o inverso com relação à cor amarelo-brilhante (MATIOLI & FIGUEIRA, 1988), que facilita sua captura em diversos tipos de armadilhas que utilizam esta cor para atração de insetos.…”

Section: Introductionunclassified

Ocorrência e distribuição mensal de Astylus variegatus (Germar, 1824) e A. sexmaculatus (Perty, 1830) (Coleoptera: Dasytidae) em alguns municípios do estado de Minas Gerais

Matioli¹,

Rossi²,

Carvalho³

1990

An. Soc. Entomol. Bras.

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Occurence and monthly distribution of Astylus variegatus (Germar, 1824) and A. sexmacu/atus (Perty, 1830) (Coleoptera; Dasytidae) in Minas Gerais State, Brazil lo the last years larvae of Asivlus spp., with underground habits, have been damaging cern before gerroination and causing econornic losses te farmers in different regions of Brazil. These lnsects are difficult to rear in laboratory and no biological data has been found in the literatura. The populational dynamics of Astvlus variegutus (Gerruar, 1824) and A. sexma culotus (Perty, 1830) was determined in three counties of Minas Gerais State, with different ecological conditions. Adults of these species are strongly attracted by the bright yellow color and are easily caught in Moericke's trepa. Captures made every two days during fourteen inonths showed high population leveis between January and June. Of 12,913 adulta collected, 84.82% were A.uarieqotus, whose larvae damage seeds in soil when dry periods occur after sowing. Both species were almost absent (only 0.04% of A. vurieyatiis) in Janaúba. in the north of Minas Gerais. A. variegutus was predceiinant in Lavras (52.59%) in relation to Maria da Fé (47.37%) both in the south ei the State. A. sexmacutatus was trapped alniost exclusively in Maria da Fé (99.69%) and was not reported causing darnage in seeds of coro. Both species were univoltine and the length ei their biological cycle and larval stage were estimated in aut 360 and 300 days, respectively. Only one populational peak was ob servcd per year, in April. From July to December, neither spe cies were trapped nor observed in the field.

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Dinâmica populacional e efeitos da temperatura ambiental e precipitação pluviométrica sobre Astylus variegatus (Germar, 1824) e A. sexmaculatus (Perty, 1830) (Coleoptera; Dasytidae)

Cited by 3 publications

References 2 publications

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Attraction of Astylus variegatus (Germ.) (Coleoptera: Melyridae) by volatile floral attractants

Ocorrência e distribuição mensal de Astylus variegatus (Germar, 1824) e A. sexmaculatus (Perty, 1830) (Coleoptera: Dasytidae) em alguns municípios do estado de Minas Gerais

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