Ovipositional Preference of Squash Bugs (Heteroptera: Coreidae) Among Cucurbits in Oklahoma

Bonjour, E. L.; Fargo, W. S.; Rensner, P. E.

doi:10.1093/jee/83.3.943

Cited by 26 publications

(19 citation statements)

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“…This behavior seems to be common in Coreids. Bonjour et al (1990) also registered main leaf vein as the main oviposition site for A. tristis on cucurbits in the USA.…”

Section: Discussionmentioning

confidence: 91%

Population Dynamics and Spatial Distribution of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) Adults on Nicotiana tabacum L. (Solanaceae)

Jesus¹,

Romanowski²

2002

Neotrop. Entomol.

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Dinâmica Populacional e Distribuição Espacial dos Adultos de Spartocera dentiventris (Berg) (Hemiptera: Coreidae) em Nicotiana tabacum L. (Solanaceae)RESUMO -Spartocera dentiventris (Berg), o percevejo-cinzento-do-fumo, devido ao seu hábito alimentar sugador, provoca o enrolamento e a murcha das folhas de fumo, causando prejuízos à cultura. O conhecimento da dinâmica populacional é fundamental para o estabelecimento de técnicas mais eficientes de monitoramento e manejo da praga. Com o objetivo de monitorar a colonização, o estabelecimento, o crescimento e a distribuição espacial da população adulta de S. dentiventris, através do método de marcação e recaptura, um cultivo experimental de fumo (Nicotiana tabacum) foi estabelecido em Porto Alegre, RS. Todas as plantas foram inspecionadas três vezes por semana durante o período de agosto de 1999 a abril de 2000, marcando-se 217 indivíduos. Apenas em uma geração os indivíduos sobreviveram até a fase adulta na área. O tamanho populacional, estimado através do método de Fisher-Ford, apresentou um pico de 160 indivíduos. O recrutamento médio estimado foi 5,0 ± 2,67 fêmeas/dia e 6,6 ± 1,73 machos/dia (z = 0,71; gl = 118; P = 0,477). A maioria dos indivíduos concentrouse na região superior da planta e na face abaxial das folhas. Análise realizada por grupo de seis plantas revelou um padrão agregado de distribuição espacial em 78,4% das ocasiões de amostragem. Os adultos concentraram-se em certos locais da cultura e o tamanho populacional parece ter sido afetado por variações climáticas e predação. Essas observações devem ser consideradas na implementação de medidas de monitoramento e controle da espécie.PALAVRAS-CHAVE: Insecta, ecologia populacional, método de marcação, liberação e recaptura ABSTRACT -Spartocera dentiventris (Berg), the gray-tobacco-bug, feeds on the sap of the plant, inducing leaf wilting and twisting, thus causing economic losses to the tobacco crop. The knowledge on its population dynamics is crucial for the development of efficient techniques for monitoring and managing this species. An experimental tobacco (Nicotiana tabacum) crop was established in Porto Alegre County, South Brazil, aiming to study the colonization, establishment, growth and spatial distribution of the adult S. dentiventris population using the mark-release-recapture method. All plants were inspected at least three times a week. From August 1999 to April 2000, 217 individuals were marked. Only one generation completed development up to the adult phase. Population size estimated by the Fisher-Ford method peaked at ca. 160 individuals. Average recruitment was 5.0 ± 2.67 females per day and 6.6 ± 1.73 males per day (z = 0.71; df = 118; P = 0.477). Most individuals concentrated in the upper part of the plant and on the abaxial face of leaves. Analysis performed in groups of six plants revealed an aggregated pattern of distribution in 78.4% of sampling occasions. Individuals concentrated in certain areas of the crop and the population size seemed to be highly susceptible to weather var...

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“…This behavior seems to be common in Coreids. Bonjour et al (1990) also registered main leaf vein as the main oviposition site for A. tristis on cucurbits in the USA.…”

Section: Discussionmentioning

confidence: 91%

Population Dynamics and Spatial Distribution of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) Adults on Nicotiana tabacum L. (Solanaceae)

Jesus¹,

Romanowski²

2002

Neotrop. Entomol.

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“…Matsum & Nakai, cucumber, and muskmelons (Cucumis spp.) (Bonjour and Fargo 1989;Bonjour et al 1990Bonjour et al , 1991. Woodson et al (1991) described the negative effect that squash bug feeding had on growth and productivity of squash.…”

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confidence: 99%

“…Bonjour and Fargo (1989) and Bonjour et al (1990Bonjour et al ( , 1991 previously indicated that watermelon is not a preferred host plant of the squash bug. However, watermelon producers in Texas and Oklahoma have indicated that squash bug is a primary pest of the crop (Riley et al 1998).…”

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confidence: 99%

Watermelon Seedling Growth and Mortality as Affected by <I>Anasa tristis</I> (Heteroptera: Coreidae)

Edelson

Duthie

Roberts

2002

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Adult squash bugs, Anasa tristis (De Geer), were confined on seedling watermelon plants at densities of zero, one, two, and four per plant. Squash bugs were allowed to feed on the plants until plants died or reached 30 cm in height. Number of leaves and length of plant vine were recorded at 2- or 3-d intervals. Seedling foliage, stems, and roots were harvested and dried after plants reached 30 cm in height. Growth of seedlings was regressed on number of squash bugs and results indicated that an increasing density of squash bugs feeding on seedlings resulted in a significant reduction in plant growth. Additionally, increased density of squash bugs resulted in reduced weight of foliage and root dry biomass. Seedling mortality increased as the density of squash bugs increased.

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“…These include the fact that that the Curcubita crop matures early and has long shelf life due to easy storage [17] C. pepo can tolerate temperately harsh environmental conditions, resistant to many pests of the cucurbits and it can be grown well in small pieces of land and yield relatively good returns with minimal fertilizer inputs [8], factors which support the notion that the crop has a huge untapped market with high income possibilities [23].…”

Section: Discussionmentioning

confidence: 99%

Proximate Composition of Pumpkin Gourd (Cucurbita Pepo) Seeds from Zimbabwe

Kwiri¹

2014

IJNFS

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Ovipositional Preference of Squash Bugs (Heteroptera: Coreidae) Among Cucurbits in Oklahoma

Cited by 26 publications

References 0 publications

Population Dynamics and Spatial Distribution of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) Adults on Nicotiana tabacum L. (Solanaceae)

Population Dynamics and Spatial Distribution of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) Adults on Nicotiana tabacum L. (Solanaceae)

Watermelon Seedling Growth and Mortality as Affected by <I>Anasa tristis</I> (Heteroptera: Coreidae)

Proximate Composition of Pumpkin Gourd (Cucurbita Pepo) Seeds from Zimbabwe

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