Movement pattern of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) in an experimental crop of Nicotiana tabacum L. (Solanaceae)

Jesus, Cristiane Ramos de; Romanowski, Helena Piccoli

doi:10.1590/s1519-69842002000500012

Cited by 3 publications

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References 5 publications

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“…The Spartocera dentiventris (Berg) (Hemiptera: Coreidae), commonly known as "tobacco stink bug" (Nicotiana tabacum) is responsible for causing great damage in tobacco farming, but has also been found in other agricultural crops in Brazil and other parts of the world (Caldas et al, 2000;Jesus et al, 2002). The culture of tobacco has great economic importance, due to its high commercial value and the ability to employ a great number of people (Maliszewski, 2019).…”

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confidence: 99%

Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

et al. 2021

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Section: (With 2 Figures)mentioning

confidence: 99%

Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

et al. 2021

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“…Caldas et al (1998Caldas et al ( , 1999Caldas et al ( , 2000 presented a series of articles focusing on the description of the immature stages, reproductive parameters and the biology of the S. dentiventris in the field. Jesus (2001) and Jesus et al (2002) studied the dynamics and spatial distribution of S. dentiventris adults and assessed their pattern of movements in the field. Mortality on the egg stage caused by parasitoids and predators is reported on Santos et al (2001Santos et al ( , 2002.…”

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Population fluctuation, immature mortality and adult longevity of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) on Nicotiana tabacum (Solanaceae)

Canto-Silva¹,

Romanowski²

2003

Neotrop. Entomol.

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Neotropical Entomology 32(3): 399-406 (2003) Flutuação Populacional, Mortalidade em Imaturos e Longevidade de Adultos de Spartocera dentiventris (Berg) (Hemiptera: Coreidae) em Nicotiana tabacum (Solanaceae) RESUMO imaturos foi estimada pela diferença entre os picos populacionais dos sucessivos ínstares em cada planta. O parasitismo foi avaliado com base na coloração dos ovos. Duas gerações desenvolveram-se ao longo do ciclo da cultura. As mortalidades para fases imaturas foram 93,6 ± 3,19% e 99,8 ± 0,20% para a primeira e segunda gerações, respectivamente. A mais alta taxa de mortalidade ocorreu em ninfas jovens e ovos. O parasitismo em ovos foi 8,9 ± 8,48% e 36,2 ± 3,63% para a primeira e segunda gerações, respectivamente. A razão sexual foi de 0,42 e a longevidade média dos adultos foi, no mínimo, 19,2 ± 1,00 dias, na primeira geração e 12,6 ± 2,52 dias, na segunda geração. O crescimento populacional de S. dentiventris foi drasticamente limitado por fatores de mortalidade; entre estes, os parasitóides Gryon gallardoi (Brethes) e Neorileya ashmeadi Crawford são responsáveis por parte das perdas em ovos e o reduvídio Cosmoclopius nigroannulatus Stål exerce aparentemente papel importante na predação de ninfas. PALAVRAS-CHAVE: Percevejo-cinzento-do-fumo, ecologia populacional, parasitismo ABSTRACT -The population fluctuations, mortality in the immature phases and longevity of the Spartocera dentiventris (Berg) adults were studied in an experimental plot of Nicotiana tabacum (Solanaceae) at the Faculdade de Agronomia -Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil (30 o 05' S and 51 o 13' W). From November 1996 to March 1997, 30 sampling occasions were carried out: 23 plants were inspected and the number of eggs and nymphs per instar counted and adults marked / recaptured. Mortality in immature bugs was estimated by the difference between the population peaks in successive instars per plants. Parasitism was evaluated based on the egg colour. Two generations developed through the cycle of the crop, the various instars overlapping in both generations. The mortality rates for immature phase were 93.6 ± 3.19% and 99.8 ± 0.20% for the first and second generations respectively. The highest rates of mortality occurred in young nymphs and eggs. Egg parasitization rates were 8.9 ± 8.48% and 36.2 ± 3.63% for the first and second generations respectively. Sex ratio was 0.42 and minimum average longevity for adults was 19.2 ± 1.00 days in the first and 12.6 ± 2.52 days in the second generation. Population growth was dramatically limited by mortality factors; amongst these, the parasitoids Gryon gallardoi (Brethes) and Neorileya ashmeadi Crawford account for much of the eggs losses and it is suggested that the reduvid Cosmoclopius nigroannulatus Stål plays an important role preying upon nymphs.

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Dispersal of the egg parasitoid Gryon gallardoi (Brethes) (Hymenoptera: Scelionidae) in tobacco crops

2006

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A mass marking-recapture experiment was carried out to study the dispersal of Gryon gallardoi (Brethes) (hymenoptera: scelionidae) in tobacco crops. parasitoids emerged in the laboratory were marked with dye powder. six separate field trials were conducted in Jan/feb 2002 involving the simultaneous release of marked parasitoids. Dispersal was determined by the recapture of individuals in sets of sticky and moericke traps arranged in three concentric circles arranged at 1.4 m intervals from the central point of release. traps were checked 4, 8, 24, 28, 32 and 48 h after parasitoid release and weather data were recorded at 2-h intervals from 9 to 17 h at the site. of the 699 marked parasitoids released, 91 were recaptured (13.02%). fewer females were recaptured in the late afternoon, suggesting they are less active than males after dusk. G. gallardoi recaptures were not associated with average wind direction in any trials. After eight hours of release, recaptures occurred mostly in the traps farthest from the release point, suggesting that the experimental area was small in relation to the dispersal capacity of the parasitoid. fitting a 4-h-after-release density-distance curve to a geometric model and considering a daily activity of 12 h, the female dispersal capacity was estimated to be at least 7.6 m/day. the values reported here must be considered as indicative of the potential for active dispersal under the particular experimental conditions of these trials. it is possible that G. gallardoi may disperse downwind much farther than the distance recorded in this study.Keywords: insecta, parasitism, Gryon gallardoi, movement, marking-recapture. Palavras-chave: insecta, parasitismo, Gryon gallardoi, movimento, marcação-recaptura. RESUMO

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Movement pattern of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) in an experimental crop of Nicotiana tabacum L. (Solanaceae)

Cited by 3 publications

References 5 publications

Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

Population fluctuation, immature mortality and adult longevity of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) on Nicotiana tabacum (Solanaceae)

Dispersal of the egg parasitoid Gryon gallardoi (Brethes) (Hymenoptera: Scelionidae) in tobacco crops

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