Notes on the taxonomy and nomenclature ofAphidius species [Hym.: aphidiidae] parasitic on the pea aphid in North America

Marsh, Paul M.

doi:10.1007/bf02373261

Cited by 28 publications

(25 citation statements)

References 15 publications

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“…It is a common cosmopolitan solitary endoparasitoid (March 1977) of several aphid species of economically important crops such as legumes and cereals (Starý 1978, Stilmant et al 2008. A large sampling (more than 300 mummies) of A. ervi was provided in January 2007 by Viridaxis S.A. in Belgium where it was reared on the grain aphid Sitobion avenae F (Homoptera: Aphididae).…”

Section: Biological Modelmentioning

confidence: 99%

Physiological costs of cold exposure on the parasitoid Aphidius ervi, without selection pressure and under constant or fluctuating temperatures

et al. 2010

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The aim of this study is to evaluate the physiological costs and the consequences on fitness of cold exposure on the parasitoid Aphidius ervi (Hymenoptera: Aphidiinae) under non-lethal conditions. We exposed 1-day-old mummies to different treatments: control at 20°C, 7°C constant, 7°C fluctuating (7°C for 22 h and 20°C for 2 h). Two performances of fitness were particularly affected after two weeks at 7°C constant: female longevity and the sex ratio of the progeny was male biased. In contrast, egg load at emergence, lifetime fecundity, frequency of asymmetric individuals in both sexes, and mating success were not significantly affected under all treatments. The effects of these treatments on trends such as utilisation of fat reserves and fertility of males and females are discussed.

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Section: Biological Modelmentioning

confidence: 99%

Physiological costs of cold exposure on the parasitoid Aphidius ervi, without selection pressure and under constant or fluctuating temperatures

et al. 2010

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“…Aphidius ervi Haliday is a cosmopolitan, solitary, endophagous parasitoid (Marsh 1977) and a major biological control agent of several aphid species on economically important crops such as legumes and cereals (Powell 1982;Starý et al 1988). Sigsgaard (2000) has studied the temperature-dependent duration of development of Aphidius ervi and two other parasitoids reared on Sitobion avenae (Fabricius) (Sternorrhyncha: Aphidoidea).…”

mentioning

confidence: 99%

Effect of temperature on the developmental rate, longevity and parasitism of Aphidius ervi Haliday (Hymenoptera: Aphidiidae)

Malina¹,

Praslička²

2008

Plant Prot. Sci.

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Malina R., Praslička J. (2008): Effect of temperature on the developmental rate, longevity and parasitism of Aphidius ervi Haliday (Hymenoptera: Aphidiidae). Plant Protect. Sci., 44: 19-24.Temperature-dependent development, longevity and parasitism of the parasitoid Aphidius ervi Haliday was measured at four constant temperatures between 15°C and 30°C using Aphis pomi de Geer as host. The thresholds for egg-mummy and mummy-adult development were 6.8°C and 3.9°C, respectively. Development into mummies required an average of 146.3 degree-days (DD), while development into adults took an average of 85.3 DD. Longevity was increasing linearly in the range from 15°C to 25°C (8-15 days), but was lower at 30°C (11 days). The relationship between parasitism, recorded as percent aphids mummified, and temperature was increasing at the temperatures 15-25°C, but decreasing at higher temperatures; 10.8% of the aphids were parasitised at 15°C, 15.9% at 25°C and 14.6% at 30°C. These results are compared with previously reported data on temperature-dependent development of A. ervi on a different host.Keywords: Aphidius ervi; development time; parasitism; longevity; thermal constants 20 Vol. 44, Plant Protect. Sci. Ohta & Ohtaishi (2003) have reported also the temperature-dependent longevity of Aphidius gifuensis Ashmead. The apple aphid, Aphis pomi de Geer, is a common inhabitant of apple orchards. Dense populations may cause abnormal growth of terminal shoots, reduce the levels of non-structural carbohydrates in shoots, roots and leaves and lower the yield of fruit (Kaakeh et al. 1993).The knowledge of thermal constants and lower development thresholds provides essential information to determine the development rate of a particular species of arthropod (Jarošík et al. 2002). Thermal constants are frequently used to create predictive models of pest development in various environments, including stored products (Subramanyam et al. 1990), greenhouses and orchards (Graf et al. 1996).We studied the effect of temperature on the development, percentage of parasitism and longevity of Aphidius ervi at four constant temperatures to evaluate its potential as a biological agent to control Aphis pomi. MATERiAL AnD METhoDsHost aphid source. Aphis pomi colonies used in this study originated from a single collection of wild aphids from apple trees in the town Banská Bystrica (48°44'N, 19°08'E) in April 2006. The colonies were maintained on fresh apple tree shoots (replaced every 2 days after all aphids had migrated from dry to fresh shots) in a thermostat at 25 ± 1°C, 60 ± 5% RH and a photoperiod of 16:8 (L:D) hours. After a 1-month rearing period, the colonies were used for parasitoid experiments.Parasitoid source. Aphidius ervi were obtained from a single collection of aphid mummies from apple trees in the town Banská Bystrica in May 2006. Mummies were kept individually in small glass vials (5 × 1.5 cm) under the same temperature and humidity conditions as aphids. Mummies were checked daily and parasitoid adults retrieved as they hatc...

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“…Aphidius ervi Haliday, 1834 (Hymenoptera: Aphidiidae) is a cosmopolitan, solitary, endophagous parasitoid (Marsh 1977) and a major biological control agent of several aphid species damaging economically important crops such as legumes and cereals (Powell 1982;Starý et al 1988). The impact of a parasitoid on its host population greatly depends upon its ability to find and parasitize hosts and to increase offspring numbers in response to increasing host density (Waage & Hassell 1982;Mackauer 1983).…”

Section: Introductionmentioning

confidence: 99%

Developmental rates of the aphid Aphis pomi (Aphidoidea: Aphididae) and its parasitoid Aphidius ervi (Hymenoptera: Aphidiidae)

2010

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Developmental rates of the aphid Aphis pomi and its parasitoid Aphidius ervi were compared at four constant temperatures (15, 20, 25, 30 • C). Aphis pomi required 159.07 degree-days (DD) above lover developmental threshold (LDT) of 0.3• C. Aphidius ervi required 229.73 DD above LDT of 5.98• C. Developmental rate of A. pomi is higher than the developmental rate of A. ervi at the same conditions.

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Notes on the taxonomy and nomenclature ofAphidius species [Hym.: aphidiidae] parasitic on the pea aphid in North America

Cited by 28 publications

References 15 publications

Physiological costs of cold exposure on the parasitoid Aphidius ervi, without selection pressure and under constant or fluctuating temperatures

Physiological costs of cold exposure on the parasitoid Aphidius ervi, without selection pressure and under constant or fluctuating temperatures

Effect of temperature on the developmental rate, longevity and parasitism of Aphidius ervi Haliday (Hymenoptera: Aphidiidae)

Developmental rates of the aphid Aphis pomi (Aphidoidea: Aphididae) and its parasitoid Aphidius ervi (Hymenoptera: Aphidiidae)

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