Entomopathogens infecting brown marmorated stink bugs before, during, and after overwintering

Hajek, Ann E.; Brandt, S.N.; Gonzalez, Jennifer B; Bergh, J. Christopher

doi:10.1093/jisesa/iead033

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…For instance, traps based on aggregation pheromones (Leskey et al., 2015) or particular building materials (Lee et al., 2013) are used to attract the overwintering brown marmorated stink bug, Halyomorpha halys (Stal) to help monitor its populations and have also been considered as possible trap‐and‐kill devices (Weber et al., 2017). Moreover, the potential of entomopathogenic fungi and parasites as biocontrol agents of overwintering individuals of this species has been evaluated (Chen et al., 2020; Hajek et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

Study of the overwintering ecology of the hazelnut pest, Palomena prasina (L.) (Hemiptera: Pentatomidae) in a perspective of Integrated Pest Management

Driss,

Hamidi,

Andalo

et al. 2023

J Applied Entomology

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Palomena prasina, the green shield bug (GSB), is widely distributed in the Eurosiberian region. In the Southwest of France, it is considered as a serious pest of hazelnuts, its feeding punctures lead to blank hazelnuts and kernel necrosis, causing heavy losses in commercial orchards. To date, no Integrated Pest Management strategy is available to control P. prasina. Control strategies often focus on the pests' spring–summer ecology, when they are in the field or in the vicinity of crops. However, the abundance of pest populations in crops is also related to their autumn‐winter ecology. The present work focussed on the autumn‐winter ecology of P. prasina to identify new opportunities for this pest suppression. We investigate (i) where P. prasina overwinters, (ii) if it aggregates in its overwintering sites and (iii) if it mates while overwintering. Samples were collected over a 2‐year period in different ecosystems (forests, hedges, orchards), in human‐made structures and habitats (litter, bushes/trees, dead trees). The reproductive status of GBS individuals was monitored in winter, and in spring when they emerged from overwintering sites. Our results show that 97% P. prasina adults overwinter in the leaf litter of orchards and natural ecosystems and that 70% overwinter individually. The abundance of GSB in those sites is negatively correlated with litter temperature and positively correlated with humidity levels. Furthermore, adults only mate after leaving their overwintering site. Finally, unexpectedly, there was an important number of overwintering adults hosting endoparasitoids (32%). The fact that GSB overwinters alone in the leaf litter means controlling its populations by destroying the overwintering sites is not a solution. All the same, our results point out some promising lines of research for developing methods to control P. prasina. First, the emergence traps, in particular the cone traps, proved efficient for collecting emerging adults and could be considered for monitoring. Moreover, our observations suggest the existence of long‐range mating signals that could be exploited for trapping. Last but not least, the important number of overwintering parasitised adults is a potential biocontrol avenue.

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Section: Introductionmentioning

confidence: 99%

Study of the overwintering ecology of the hazelnut pest, Palomena prasina (L.) (Hemiptera: Pentatomidae) in a perspective of Integrated Pest Management

Driss,

Hamidi,

Andalo

et al. 2023

J Applied Entomology

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First report of Colletotrichum fioriniae infections in brown marmorated stink bugs, Halyomorpha halys

González

Lambert

Foley

et al. 2023

Journal of Invertebrate Pathology

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Halyomorpha halys (Hemiptera: Pentatomidae) trap captures at orchard and nonorchard sites and the influence of uncultivated woody host plants in adjoining woodlots

Hadden,

Brewster,

Leskey

et al. 2023

Journal of Economic Entomology

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The invasive Halyomorpha halys (Hemiptera: Pentatomidae) has threatened Mid-Atlantic tree fruit since 2010. To identify factors underlying observed differences in H. halys pest pressure among individual orchards within a geographically proximate area, a 3-yr study was conducted across 10 apple orchard and 8 nonorchard sites bordered by unmanaged woodlots. At each site, 3 pheromone traps were monitored weekly for H. halys captures from late April to mid-October. Apple injury was assessed at harvest at orchard sites annually, and a survey of woody plants found in woodlots adjacent to all sites was conducted. There were no significant differences in captures between orchard and nonorchard site types, but captures were significantly different among individual orchard sites and among individual nonorchard sites. A significant positive relationship between the amount of stink bug injury on apple at harvest and late season captures was detected at orchard sites in 2018 and 2019. Among woodlots adjacent to all sites, a significant positive relationship between the proportion of Lonicera spp. and mid- and late-season nymphal captures was identified. Season-long nymphal captures were positively related to the proportion of Lonicera and Elaeagnus and negatively with Sassafras. For adults, captures were negatively related to the proportion of Ailanthus and positively related to the proportion of Fraxinus in the early and mid-season, respectively. Our results indicate that orchard presence was not driving the relative abundance of localized H. halys populations and that differences in relative densities among sites point to other factors, such as abundance of specific uncultivated woody hosts in unmanaged areas.

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Entomopathogens infecting brown marmorated stink bugs before, during, and after overwintering

Cited by 3 publications

References 34 publications

Study of the overwintering ecology of the hazelnut pest, Palomena prasina (L.) (Hemiptera: Pentatomidae) in a perspective of Integrated Pest Management

Study of the overwintering ecology of the hazelnut pest, Palomena prasina (L.) (Hemiptera: Pentatomidae) in a perspective of Integrated Pest Management

First report of Colletotrichum fioriniae infections in brown marmorated stink bugs, Halyomorpha halys

Halyomorpha halys (Hemiptera: Pentatomidae) trap captures at orchard and nonorchard sites and the influence of uncultivated woody host plants in adjoining woodlots

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