Parasitoids of Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) recovered in western North America and first record of its egg parasitoid Gryon pennsylvanicum (Ashmead) (Hymenoptera: Platygastridae) in California

Maltese, Matteo; Caleca, Virgilio; Guerrieri, Emilio; Strong, Ward B.

doi:10.3956/2012-23.1

Cited by 18 publications

(16 citation statements)

References 28 publications

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“…podisi was exclusively recovered in soybean. Therefore, these studies including the present depict a preference of Anastatus and Trissolcus species for arboreal habitats, and Telenomus and Ooencyrtus species for agricultural crops which support of earlier findings (Okuda and Yeargan 1998 ; Serrano and Foltz 2003 ; Qiu 2007 ; Hou et al 2009 ; Maltese et al 2012 ; Danne et al 2013 ).…”

Section: Discussionsupporting

confidence: 90%

Field surveys of egg mortality and indigenous egg parasitoids of the brown marmorated stink bug, Halyomorpha halys, in ornamental nurseries in the mid-Atlantic region of the USA

et al. 2017

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The brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive species native to regions of China, Japan, Korea, and Taiwan. In its native and introduced range, H. halys is considered a pest of tree fruits, vegetables, legumes, and ornamental trees. The highly polyphagous nature of this insect as well as its vast dispersal capabilities, require an integrated approach to management. Here we focus on the potential impact of indigenous natural enemies on H. halys in woody ornamental nurseries in Maryland, USA. We sampled naturally field laid H. halys egg masses for mortality and parasitism rates in 2012 and 2013. Overall, egg mortality averaged 54% for both years, and increased within season and between years. The largest source of mortality was from egg parasitoids with mean parasitism rates of 30.73 and 39.63% in 2012 and 2013, respectively. Mortality from predation was much lower and averaged 4.61% by chewing and 2.53% by sucking predators. We found seven species of Hymenopteran egg parasitoids attacking H. halys eggs, with Anastatus reduvii being the dominant species comprising 61.17 and 79.12% of all parasitoids in 2012 and 2013, respectively. The observed increase in parasitism over time and female biased sex ratio of parasitoids suggests that native parasitoids may be responding to the novel host, H. halys. Consequently, the use of these native eupelmid egg parasitoids in augmentative or conservation biological control may be a viable H. halys management strategy in ornamental nurseries.Electronic supplementary materialThe online version of this article (doi:10.1007/s10340-017-0890-8) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 90%

Field surveys of egg mortality and indigenous egg parasitoids of the brown marmorated stink bug, Halyomorpha halys, in ornamental nurseries in the mid-Atlantic region of the USA

et al. 2017

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“…This value is lower than those observed in the native range of the pest, where approximately one third of eggs were parasitized (Bates & Borden, 2004;Bates & Borden, 2005). However, the parasitism rate in its native range is highly variable from place to place (Maltese et al, 2012). The predation of WCSB egg masses might be significant and in the range of the one observed in British Columbia (Bates & Borden, 2005).…”

Section: Discussionmentioning

confidence: 70%

“…A more environmentally friendly and self-sustaining control method could involve biological control agents; the use of natural enemies to reduce or mitigate pests and pest effects. In its native range, three egg parasitoids have been identified to attack WCSB eggs: the encyrtid Ooencyrtus johnsoni Howard (Hymenoptera: Encyrtidae), the eupelmid Anastatus pearsalli Ashmead (Hymenoptera: Eupelmidae) and the platygastrid Gryon pennsylvanicum Ashmead (Hymenoptera: Platygastridae) (Bates & Borden, 2004;Maltese et al, 2012). The latter represents the main natural enemy of the pest and, investigations have been performed for classical biological control of European WCSB populations (Peverieri et al, 2012;Binazzi et al, 2013;Roversi et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Responses of native egg parasitoids to the invasive seed bug Leptoglossus occidentalis

Lesieur

Farinha

2021

Agri and Forest Entomology

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The Western conifer seed bug Leptoglossus occidentalis, a native insect of North America, was accidentally introduced in Europe in the late 1990s. Since then, it has spread rapidly. Biological control could provide an efficient management option but natural enemies of the pest have been poorly examined in Europe. 2 In this study, we exposed sentinel egg masses and collected naturally laid egg masses in southern France in 2016 and 2017, to identify the egg parasitoids of L. occidentalis and investigate their potentials. 3 Three egg parasitoids were detected: Anastatus bifasciatus, Ooencyrtus pityocampae and Ooencyrtus telenomicida. The overall parasitism was low compared to that observed in the native range with 6.4% of all eggs being parasitized, while 17.1% of egg masses carried at least one parasitized egg. The total number of parasitized egg masses was similar between parasitoid species, but the mean number of parasitized eggs per egg mass was highest for A. bifasciatus (5.57 vs. 1.25 for Ooencyrtus spp.). 4 Sentinel egg masses underestimated the parasitism compared to natural egg masses (respectively, 1.42% and 7.71%). 5 Our results suggested that the three generalist parasitoids detected can respond in a Leptoglossus egg density-dependent manner, but this requires further investigations.

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“…One of the most common egg parasitoids of coreids is Gryon spp. (Hymenoptera: Platygastridae) (Loiácono & Margaría 2002;Maltese et al 2012;Marchiori 2013).…”

Section: Introductionmentioning

confidence: 99%

Egg Parasitoids of Stink Bugs (Hemiptera: Coreidae and Pentatomidae) on Soybean and Cowpea in Brazil

Paz-Neto

Querino²,

Margaría

2015

Florida Entomologist

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Parasitoids of Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) recovered in western North America and first record of its egg parasitoid Gryon pennsylvanicum (Ashmead) (Hymenoptera: Platygastridae) in California

Cited by 18 publications

References 28 publications

Field surveys of egg mortality and indigenous egg parasitoids of the brown marmorated stink bug, Halyomorpha halys, in ornamental nurseries in the mid-Atlantic region of the USA

Field surveys of egg mortality and indigenous egg parasitoids of the brown marmorated stink bug, Halyomorpha halys, in ornamental nurseries in the mid-Atlantic region of the USA

Responses of native egg parasitoids to the invasive seed bug Leptoglossus occidentalis

Egg Parasitoids of Stink Bugs (Hemiptera: Coreidae and Pentatomidae) on Soybean and Cowpea in Brazil

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