Fecundity of and Plant Injury by the Pea Aphid as Influenced by Nutritional Changes in the Garden Pea1

Barker, John S.; Tauber, Oscar E.

doi:10.1093/jee/44.6.1010

Cited by 21 publications

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“…That would explain differences in the results of different researches on mineral effect on the same plant and aphid species, e.g., peas and pea aphids (BARKER andTAUBER, 1957 andTAYLOR et al, 1952).…”

Section: Discussionmentioning

confidence: 96%

“…Several research papers have been published on the effect of mineral use (supplementation or deprivation) and its impact on insect biology (BARKER and TAUBER, 1957;TAYLOR et al, 1952;KINDLER and STAPLES, 1970;MALBRY et al, 1997;BUSCH and PHELAN, 1999;JANSSON and EKBOM, 2002). But there is little information on the effect of inherent concentration of minerals on aphid population dynamics under field conditions.…”

Section: Introductionmentioning

confidence: 99%

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Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations

Silva¹,

Varanda

Primavesi

2005

Bragantia

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Plants have inherent variability of mineral content which affects their physiology and consequently the herbivorous insects feeding on them. Besides, insects need considerable amounts of potassium, phosphorus and magnesium in their diets, whereas little calcium, sodium and chloride are required. In this study, the inherent variation on mineral (Ca, S, Mg, N, P, K and also C:N ratio) concentrations and aphid (Acyrthosiphon spp., Therioaphis maculata, Aphis craccivora) populations on three alfalfa (Medicago sativa) cultivars (P3; Crioula, the most widely cultivated in Brazil, and CUF 101, an aphid-resistant) were studied between September/1997 and August/1998. A significant variation on mineral concentrations and aphid populations was observed among different sampling times and cultivars. The correlations between C:N ratio, Mg, N, P and S concentrations and aphid density variation suggest that the mineral status affects aphid population dynamics under field conditions. Key words: Aphididae, insecta, nutrients, resistance, plant-insect relation. RESUMO EFEITO DA VARIAÇÃO INATA DA CONCENTRAÇÃO DE MINERAIS EM CULTIVARES DE ALFAFA (MEDICAGO SATIVA) EM POPULAÇÕES DE AFÍDEOS (HEMIPTERA: APHIDIDAE)As plantas têm variação inata do conteúdo de minerais e seu estado nutricional afeta sua fisiologia cloretos. A variação inata na concentração de minerais (Ca, S, Mg, N, P, K e também a razão C:N) e na população de afídeos (Acyrthosiphon spp., Therioaphis maculata, Aphis craccivora) em três cultivares de alfafa (M. sativa) -P3; Crioula, as mais cultivadas no Brasil, e CUF 101, resistente a afídeos -foi estudada entre setembro/1997 a agosto/1998 neste trabalho. A concentração de minerais e as populações de pulgões variaram significativamente entre os diferentes períodos de coleta e cultivares. As correlações encontradas entre as concentrações de Mg, N, P, S e a razão C:N e a variação no número de pulgões sugerem que os minerais da planta afetam a dinâmica populacional dos pulgões em campo.Palavras-chave: Aphididae, insecta, nutrientes, resistência, relação planta-inseto.A.A. Silva et al.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations

Silva¹,

Varanda

Primavesi

2005

Bragantia

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“…Although P was included in regression models while K was not, it is impossible to know which nutrient is most important as they are highly correlated (Figure 1). Studies relating aphid performance with P and K in the same experiment are scarce but there is evidence that the two nutrients can affect aphid performance in opposite directions, P fertilisation is positive for aphid performance while K fertilisation is not (Broadbent et al, 1952;Barker & Tauber, 1951).…”

Section: Discussionmentioning

confidence: 99%

The effect of different plant nutrient regimes on the aphid Macrosiphum euphorbiae growing on petunia

Jansson

Ekbom

2002

Entomologia Exp Applicata

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Three experiments were conducted to study how nutrient content of the host plant, Petunia axillaris hybrida Villm. Grandiflora Group, affects the performance of Macrosiphum euphorbiae (Thomas) (Homoptera: Aphididae). Aphid performance was analysed in relation to plant nutrient levels and the ratio of nitrogen to potassium (N/K). Phosphorus (P) had a positive effect on several parameters of aphid performance. Both P and K were associated with a short development time but a strong correlation between P and K content made it impossible to detect their relative importance. In one experiment aphid performance was significantly lower on unfertilised plants with low N content, suggesting a positive effect of N. A high N/K ratio did not, in general, increase aphid performance. The complexity of plant nutrient content on aphid performance suggests that not only nutrient levels but also ratios of nutrients must be considered.

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“…Mattson and Scriber, 1987;Slansky and Rodriguez, 1987;Clancy et al, 1988). This interest builds on a tradition of insect nutritional studies demonstrating that mineral nutrients can affect insect growth and development (Barker and Tauber, 1951a;McFarlane, 1976;Dadd, 1985), survivorship and longevity (Dahms, 1947;Barker and Tauber, 1951b), and fecundity (Creighton, 1938;Dahms, 1947;Barker and Tauber, 1954;Allen and Selman, 1955;Pivnick and McNeil, 1987). The current focus is to extend the laboratory results to natural populations (e.g.…”

Section: Introductionmentioning

confidence: 99%

Size and shape analysis of mineral resources in arroyo willow and their relation to sawfly densities

Boecklen

Mopper

Price

1991

Ecological Research

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The association between host-plant mineral nutrients and insect herbivory is complex, idiosyncratic, and dynamic. Because of this we employed an unusual statistical method to evaluate the relationship between tenthredinid sawfly herbivory and concentrations of foliar nutrients in arroyo willow, Salix lasiolepis. We discovered that among 20 willow clones and between two years arroyo willow varied in the size (absolute concentrations) and shape (relative concentrations) of five mineral nutrients (Ca, Mg, N, P, and K). Similarly, the densities of five sawfly species varied in size and Shape among clones and between years. In 1984, relative densities, or shape, of the sawfly community was associated with relative concentrations, or shape, of foliar nutrients in 20 willow clones. In contrast, in 1985 absolute densities, or size, was associated with absolute concentrations, or size, of foliar nutrients. This shift from a shape to a size association between herbivory and foliar mineral nutrients may reflect the large difference in winter precipitation and sawfly densities between years: precipitation and sawfly densities were much greater in 1985 than in 1984.

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Fecundity of and Plant Injury by the Pea Aphid as Influenced by Nutritional Changes in the Garden Pea1

Cited by 21 publications

References 0 publications

Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations

Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations

The effect of different plant nutrient regimes on the aphid Macrosiphum euphorbiae growing on petunia

Size and shape analysis of mineral resources in arroyo willow and their relation to sawfly densities

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