The Navel Orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), Discovered in Northeastern Mexico Feeding on Sapindaceae

Lara-Villalón, Manuel; Vanoye‐Eligio, Venancio; Solís, M. Alma; Chacón-Hernández, Julio C.

doi:10.4289/0013-8797.119.4.601

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…The type locality of one of its synonyms, A. venipars Dyar (1914), was described from Hermosillo, Mexico. It is commonly known as the Navel orangeworm and is a polyphagous pest of a wide variety of fruits and nuts (e.g., Lara-Villalón et. al.…”

Section: Resultsmentioning

confidence: 99%

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Phycitinae (Pyraloidea: Pyralidae) of the Sierra Tarahumara Region in Northwestern Mexico

Solis,

Neunzig,

Lara

2023

The Journal of the Lepidopterists' Society

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A survey of the Phycitinae (Pyralidae) of the Sierra Tarahumara region in northwestern Mexico recorded 35 species, including 32 previously described species and three new species in the genera Cuniberta Heinrich, Sciota Hulst, and Caristanius Heinrich. The new species are described, and images of the genitalia and antenna of one species are provided. An annotated list and images of the Phycitinae collected during this study, and a list of species previously described from Mexico, are also provided. In our study, we found five species that are endemic to Mexico, and 10 that are new, previously unpublished records for Mexico. Seven species are northernmost records, and nine are southernmost records. Of the latter, all are new records for Mexico. All species except one are new, previously unpublished, records for Sonora and Chihuahua. A table of the species collected by locality and their general vegetation is provided with a brief discussion about the species richness between localities in comparison to their habitat or vegetation.

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Section: Resultsmentioning

confidence: 99%

“…Phycitines are leaf rollers, seed feeders, and borers, with a few species known to be predators on scale insects and their relatives (Heinrich 1956, Solis 1996). It is an economically important group of moths with many stored-product pests distributed worldwide, and other major pests, such as the navel orangeworm (e.g., Dyar 1914, Lara-Villalón et. al.…”

mentioning

confidence: 99%

Phycitinae (Pyraloidea: Pyralidae) of the Sierra Tarahumara Region in Northwestern Mexico

Solis,

Neunzig,

Lara

2023

The Journal of the Lepidopterists' Society

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“…The seeds of U. speciosa contain toxic cyanolipids, a compound unique to the Sapindaceae (Nahrstedt, 1985). When damaged, U. speciosa plant tissues also exude toxic cyanolipid‐laden latexes that have likely restricted the herbivore community that attacks the plant and its seeds (Lara‐Villalon et al., 2017).…”

Section: Methodsmentioning

confidence: 99%

A test of adaptive divergence in a newly discovered host association of the soapberry bug Jadera haematoloma on Mexican buckeye, Ungnadia speciosa

Comerford

Carroll

Egan

2021

Entomologia Exp Applicata

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Host races represent an important step in the speciation process of phytophagous insects as they reflect the maintenance of genetically divergent host‐associated populations in the face of appreciable gene flow. The red‐shouldered soapberry bug, Jadera haematoloma (Herrich‐Schäffer) (Hemiptera: Rhopalidae), is an oligophagous seed predator with a history of host race evolution on plant associations in the (soapberry) family Sapindaceae. Soapberry bugs are a model group for understanding rapid ecological adaptation to their hosts, and hence good candidates for investigating evolutionary divergence in host associations over short timescales. Here, we describe the recent discovery of Mexican buckeye, Ungnadia speciosa Endl., as a host of J. haematoloma in a region of the Chihuahuan desert including west Texas and southeastern New Mexico, USA. This host differs from J. haematoloma’s previously recorded hosts in the Sapindaceae in seed chemistry, ecology, and phylogeny. The tendency toward rapid, host‐associated adaptations by populations of J. haematoloma and the unique biology of the newly discovered Ungnadia host create the opportunity for potential host race formation, as it overlaps geographically with two previously recorded host plants in this region – the native western soapberry tree, Sapindus saponaria var. drummondii (Hook & Arn.), and the non‐native goldenrain tree, Koelreuteria paniculata Laxm. We explore the possibility of host race formation on Ungnadia‐associated insects by testing for host‐associated differentiation in morphology and feeding behaviors. We find evidence of differentiation in the length of the mouth parts, which is an ecologically relevant feeding trait between host plant species with larger or smaller seed capsules. This divergence is maintained in the face of potential gene flow by reproductive isolation in the form of habitat isolation, which we detect in host preference trials. Together, our results demonstrate that soapberry bugs associated with this newly discovered host exhibit morphological and behavioral traits consistent with host race formation, but additional work is required to confirm its state along the speciation continuum.

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“…Reporting on A. transitella in Mexico, Lara‐Villalón et al. (2017) state that there is no report of damage on pecans in Mexico.…”

Section: Assessmentmentioning

confidence: 99%

Pest risk assessment of Amyelois transitella for the European Union

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest risk assessment of Amyelois transitella (Lepidoptera: Pyralidae), the navel orangeworm, for the EU. The quantitative assessment considered two scenarios: (i) current practices and (ii) a requirement for chilled transport. The assessment focused on pathways of introduction, climatic conditions and cultivation of hosts allowing establishment, spread and impact. A. transitella is a common pest of almonds, pistachios and walnuts in California, which is the main source for these nuts imported into the EU. Based on size of the trade and infestation at origin, importation of walnuts and almonds from the USA was identified as the most important pathways for entry of A. transitella. Using expert knowledge elicitation (EKE) and pathway modelling, a median estimate of 2,630 infested nuts is expected to enter the EU each year over the next 5 years (90% certainty range (CR) from 338 to 26,000 infested nuts per year). However, due to estimated small likelihoods of transfer to a host, mating upon transfer and survival of founder populations, the number of populations that establish was estimated to be 0.000698 year −1 (median, 90% CR: 0.0000126-0.0364 year −1 ). Accordingly, the expected period between founding events is 1,430 years (median, 90% CR: 27.5-79,400 year). The likelihood of entry resulting in establishment is therefore considered very small. However, this estimate has high uncertainty, mainly concerning the processes of transfer of the insect to hosts and the establishment of founder populations by those that successfully transfer. Climate matching and CLIMEX modelling indicate that conditions are most suitable for establishment in the southern EU, especially around the Mediterranean basin. The median rate of natural spread was estimated to be 5.6 km/year (median, 90% CR 0.8-19.3 km/year), after an initial lag period of 3.1 year (mean, 90% CR 1.7-6.2 year) following the establishment of a founder population. If A. transitella did establish, estimated median yield losses in nuts were estimated to be in the order of 1-2% depending on the nut species and production system. A scenario requiring imports of nuts to be transported under chilled conditions was shown to provide potential to further reduce the likelihood of entry.

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The Navel Orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), Discovered in Northeastern Mexico Feeding on Sapindaceae

Cited by 4 publications

References 8 publications

Phycitinae (Pyraloidea: Pyralidae) of the Sierra Tarahumara Region in Northwestern Mexico

Phycitinae (Pyraloidea: Pyralidae) of the Sierra Tarahumara Region in Northwestern Mexico

A test of adaptive divergence in a newly discovered host association of the soapberry bug Jadera haematoloma on Mexican buckeye, Ungnadia speciosa

Pest risk assessment of Amyelois transitella for the European Union

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