Biological interactions between the cereal aphids <i>Rhopalosiphum padi</i> (L.) and <i>Sitobion avenae</i> (F.) (Horn., Aphididae) on wheat

Chongrattanameteekul, Wiboon; Foster, John E.; Araya, Jaime E.

doi:10.1111/j.1439-0418.1991.tb00320.x

Cited by 15 publications

(9 citation statements)

References 15 publications

(8 reference statements)

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“…From spring to autumn, they occur sympatrically on the same host plant. The biology of R. padi and the parameters that affect its development and reproduction are well documented (Dean, 1974;Leather & Dixon, 1982;Simon et al, 1991;Chongrattanameteekul et al, 1991a), whereas, the biology of P. alienus has not previously been studied.…”

Section: Introductionmentioning

confidence: 99%

Effects of the aphid Rhopalosiphum padi on the leafhopper Psammotettix alienus under laboratory conditions

Alla¹,

Moreau²,

Frérot³

2001

Entomologia Exp Applicata

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The aphid Rhopalosiphum padi (L.) coexists with the leafhopper Psammotettix alienus (Dahlbom) in the same cereal crops. However, dense populations of the aphid were never observed to be associated with dense populations of the leafhopper. This laboratory study focuses on the effect of the aphid at various densities on the development and reproductive biology of the leafhopper and constitutes a preliminary test to understand the interactions between these insects in the field. Independently of food quantity, an increase in aphid numbers caused a lengthening of development duration and increased mortality of leafhopper nymphs. In the absence of aphids, leafhopper nymphs preferred to feed on the lower part of the plant. In the presence of aphids, the leafhoppers moved towards the upper part of the plant. An increase in aphid numbers had no significant influence on the longevity of leafhopper females, although the daily fecundity decreased significantly. These data demonstrate the negative effect of R. padi on the development and fecundity of P. alienus and corroborated the field observations. Because food quantity was not the limiting factor, further experiments are underway to elucidate the factors modifying leafhopper biology. Such factors could be used to manipulate leafhopper populations.

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Section: Introductionmentioning

confidence: 99%

Effects of the aphid Rhopalosiphum padi on the leafhopper Psammotettix alienus under laboratory conditions

Alla¹,

Moreau²,

Frérot³

2001

Entomologia Exp Applicata

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“…Aggregation behaviour in Rhopalosiphum padi L. has been reported for gyno-parae on their winter host (Pettersson, 1993). Apterae of R. padi do not seem to benefit living in groups (De Barro, 1992) and conversely, they are apparently very sensitive to intraspecific competition (Chongrattanameteekul et al, 1991a;. For the 'solitary' apterae, an odour has been suggested to mediate a spacing behaviour (Pettersson et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Effects of previous plant infestation on sieve element acceptance by two aphids

Prado

Tjallingii

1997

Entomologia Exp Applicata

120

100

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Probing behaviour as affected by a previous infestation was studied in two aphid species on their respective host plants. Probing behaviour by Aphis fabae (reported to have beneficial effects when living in colonies) and Rhopalosiphum padi (without known beneficial effects) was studied using the electrical penetration graph (EPG) technique. In A. fabae the main effects were longer and more continuous sap ingestion, and less salivation into sieve elements before sap ingestion. These suggest phloem factors. Nevertheless, mesophyll and non‐vascular tissues are likely to be involved to a lesser extent, as reflected by fewer non‐probing periods before the first phloem phase on previously colonised leaves as compared to clean leaves. Total honeydew production increased on a previously colonised leaf due to the prolonged sap ingestion periods but the excretion rate was not affected, indicating that the ingestion rate remained unaltered. R. padi did not show responses to previous colonisation. It is hypothesized that the changes in probing behaviour are due to changed plant properties, chemical contents of sieve element sap and/or physiological changes induced by the saliva from the colony.

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“…Sitobion avenae prefers warm, dry conditions (Honěk, 1985), and its rate of population growth is lower on leaves than on ears (Watt, 1979; Acreman & Dixon, 1989; Sengonca et al ., 1994). The rate of population growth on leaves did not decrease with increasing population density, probably because of movement to the ears (Holmes, 1988; Chongrattanameteekul et al ., 1991). In contrast, the decrease in the rate of population growth on ears as density increases is attributable to the limited surface area of ears (A.…”

Section: Discussionmentioning

confidence: 99%

Natural enemy ravine revisited: the importance of sample size for determining population growth

Jaros̆ı́k

Honěk

Dixon

2003

Ecological Entomology

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Abstract. 1. The population growth of three aphid species, Metopolophium dirhodum (Walker), Rhopalosiphum padi (L.), and Sitobion avenae (F.), on winter wheat, was analysed by regression. The calculations were based on censuses of aphids made in 268 plots at 3-or 7-day intervals for 10 years on leaves and 6 years on ears. The calculations were made separately for each plot each year, then repeated on the pooled data from all plots monitored in a year.2. At the level of individual plots, no population growth was detected at very low densities. At high densities, the populations grew exponentially and the growth rates did not decrease with increasing aphid density.3. Significant growth was always detected in the pooled data. These growth rates decreased significantly at the highest densities. Field estimates of the intrinsic rate of increase derived from these data ranged from 0.010 to 0.026 for M. dirhodum, 0.0071±0.011 for R. padi, and 0.00078±0.0061 and 0.0015±0.13 for S. avenae, on leaves and ears respectively.4. The apparent lack of growth in the individual plots at low densities is attributable to small sample size. It is concluded that the natural enemy ravine in the population dynamics of cereal aphids, identified by Southwood and Comins (1976), is a consequence of low population densities at which population increase is undetectable unless very large samples are taken.

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Biological interactions between the cereal aphids Rhopalosiphum padi (L.) and Sitobion avenae (F.) (Horn., Aphididae) on wheat

Cited by 15 publications

References 15 publications

Effects of the aphid Rhopalosiphum padi on the leafhopper Psammotettix alienus under laboratory conditions

Effects of the aphid Rhopalosiphum padi on the leafhopper Psammotettix alienus under laboratory conditions

Effects of previous plant infestation on sieve element acceptance by two aphids

Natural enemy ravine revisited: the importance of sample size for determining population growth

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