Evaluation of three cold storage methods of Bagrada hilaris (Hemiptera: Pentatomidae) and the effects of host deprivation for an optimized rearing of the biocontrol candidate Gryon gonikopalense (Hymenoptera: Scelionidae)

Martel, Guillaume; Sforza, R.

doi:10.1016/j.biocontrol.2021.104759

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Additional potential risk reduction options and supporting measures are shown in Sections 3.6.1.1 (Table 6) and 3.6.1.2 (Table 7). In the USA, the egg parasitoid Gryon gonikopalense (Hymenoptera: Scelionidae), native to Pakistan, is being evaluated as a biocontrol agent of B. hilaris (Martel et al, 2019;Martel and Sforza, 2021).…”

Section: Identification Of Potential Additional Measuresmentioning

confidence: 99%

Pest categorisation of Bagrada hilaris

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health performed a pest categorisation of Bagrada hilaris (Hemiptera: Pentatomidae) for the EU territory. B. hilaris, known as the bagrada bug or painted bug, is a polyphagous pest feeding on at least 25 plant families including several economically important brassica crops such as broccoli, cabbage and cauliflower. Other economically important hosts suffering impacts include beans (Fabaceae), wheat and maize (Poaceae). Young plants are particularly vulnerable to adults and nymphs feeding on tender leaves and growing points, which can cause yield losses. B. hilaris occurs in Africa and Asia and has spread to North America (USA and Mexico) and South America (Chile) where there are multiple generations per year. It is not widely distributed in the EU but has been established in Malta and on the Italian island of Pantelleria, south west of Sicily, since the 1970s where it is an economically important pest of capers. The reasons why it has not spread further within southern Europe are unknown. B. hilaris is not a regulated pest in the EU. It could further enter and spread within the EU via the import and movement of host plants or as a hitchhiking species forming aggregations in conveyances and amongst non-plant traded goods. Host availability and climate suitability suggest that, in addition to Malta and Pantelleria, southern areas of the EU around the Mediterranean would also be suitable for B. hilaris establishment. The introduction of B. hilaris to other Mediterranean areas of the EU would likely cause impacts in a range of crops, particularly brassicas. Measures to prevent entry and spread are available. B. hilaris satisfies all of the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

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Section: Identification Of Potential Additional Measuresmentioning

confidence: 99%

Pest categorisation of Bagrada hilaris

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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Development, survivorship and reproduction of Gryon aetherium Talamas (Hymenoptera: Scelionidae), an egg parasitoid of Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae), under eight constant temperatures

Martel

René

2023

Biological Control

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Factors Affecting Progeny Production and Sex Ratio of Gryon aetherium (Hymenoptera: Scelionidae), a Candidate Biological Control Agent for Bagrada hilaris (Hemiptera: Pentatomidae)

Hougardy

Hogg

2022

Insects

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Manipulating the factors that influence progeny production and sex ratio in parasitoids can help maximize the production of quarantine bioassays and/or mass releases. In a series of experiments, we studied the effects of several factors on offspring production and sex ratio in the parasitoid Gryon aetherium (Hymenoptera: Scelionidae), a candidate biological control agent for Bagrada hilaris (Hemiptera: Pentatomidae). Progeny production was influenced by maternal age and dropped when females were 24 or 28 days old and decreased on the second day of exposure. Overall, the offspring sex ratio was highly variable in G. aetherium and was affected by the duration of exposure, with higher proportions of females emerging after one day of exposure than after two days, but was not affected by female density, female age/host deprivation, or temperature during oviposition. Progeny production was affected by the temperature during oviposition and was highest at 26.6 °C. The results indicate that production of G. aetherium can be maximized at one day of exposure, using females that are less than 24 d old, and at temperatures of around 26 °C.

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Evaluation of three cold storage methods of Bagrada hilaris (Hemiptera: Pentatomidae) and the effects of host deprivation for an optimized rearing of the biocontrol candidate Gryon gonikopalense (Hymenoptera: Scelionidae)

Cited by 4 publications

References 31 publications

Pest categorisation of Bagrada hilaris

Pest categorisation of Bagrada hilaris

Development, survivorship and reproduction of Gryon aetherium Talamas (Hymenoptera: Scelionidae), an egg parasitoid of Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae), under eight constant temperatures

Factors Affecting Progeny Production and Sex Ratio of Gryon aetherium (Hymenoptera: Scelionidae), a Candidate Biological Control Agent for Bagrada hilaris (Hemiptera: Pentatomidae)

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