Introduced bees (
            Osmia cornifrons
            ) collect pollen from both coevolved and novel host-plant species within their family-level phylogenetic preferences

Studying the pollen preferences of introduced bees allows us to investigate how species use host-plants when establishing in new environments. Osmia cornifrons is a solitary bee introduced into North America from East Asia for pollination of Rosaceae crops such as apples and cherries. We investigated whether O. cornifrons (i) more frequently collected pollen from host-plant species they coevolved with from their geographic origin, or (ii) prefer host-plant species of specific plant taxa independent of origin. To address this question, using pollen metabarcoding, we examined the identity and relative abundance of pollen in larval provisions from nests located in different landscapes with varying abundance of East-Asian and non-Asian plant species. Our results show that O. cornifrons collected more pollen from plant species from their native range. Plants in the family Rosaceae were their most preferred pollen hosts, but they differentially collected species native to East Asia, Europe, or North America depending on the landscape. Our results suggest that while O. cornifrons frequently collect pollen of East-Asian origin, the collection of pollen from novel species within their phylogenetic familial affinities is common and can facilitate pollinator establishment. This phylogenetic preference highlights the effectiveness of O. cornifrons as crop pollinators of a variety of Rosaceae crops from different geographic origins. Our results imply that globalization of non-native plant species may ease the naturalization of their coevolved pollinators outside of their native range.

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Effect of host plant species of cotton whitefly Bemisia tabaci Middle East‐Asia Minor 1 (Hemiptera: Aleyrodidae) on the development, survival and reproduction of its predaceous ladybeetle Serangium japonicum (Coleoptera: Coccinellidae)

Agricultural and Forest Entomology ◽

10.1111/afe.12348 ◽

2019 ◽

Vol 21 (4) ◽

pp. 417-423 ◽

Cited By ~ 1

Author(s):

Mi Tian ◽

Netnapa Pumhan ◽

Tong‐Xian Liu ◽

Shi‐Ze Zhang

Keyword(s):

Middle East ◽

East Asia ◽

Host Plant ◽

Plant Species ◽

Bemisia Tabaci ◽

Asia Minor ◽

Host Plant Species ◽

Survival And Reproduction ◽

Cotton Whitefly ◽

Serangium Japonicum

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Bidens frondosa (beggarticks).

10.1079/cpc.108916.20210099948 ◽

2021 ◽

Author(s):

Ian Popay

Keyword(s):

New Zealand ◽

North America ◽

Plant Species ◽

Native Plant ◽

Native Plant Species ◽

Bidens Frondosa ◽

The World ◽

Environmental Weed ◽

Temperate Climates

Abstract B. frondosa is a herbaceous annual native to North America. It has been introduced widely in Europe and to other parts of the world and is mostly found in temperate climates. The majority of introductions into new countries are intentional, due to the medicinal, herbal and decorative properties ascribed to the species. However, seeds can be accidentally dispersed into new areas as they can adhere firmly to animal fibres such as wool. In Europe B. frondosa has been reported to out compete and interbreed with native plant species in particular those of the same genus. B. frondosa is classified as an environmental weed in New Zealand.

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Schistocerca nitens (gray bird grasshopper).

10.1079/cpc.49834.20210100273 ◽

2021 ◽

Author(s):

Alberto Garcia-Moll

Keyword(s):

North America ◽

South America ◽

Central America ◽

Plant Species ◽

Hawaiian Island ◽

Endangered Plant ◽

Native Plant ◽

Native Plant Species ◽

The Family ◽

Northern South America

Abstract S. nitens (Thunberg) is a short-horned grasshopper classified in the Family Acrididae. It is native to southwestern North America, Central America and northern South America. It was first reported as invasive in the Hawaiian archipelago in 1964 and is now present on all the main Hawaiian islands. S. nitens is solitary and non-migratory, but under certain conditions can form swarms or outbreaks and cause damage to crops and native plant species. In 2002 and 2004 outbreaks on the Hawaiian island of Nihoa posed a threat to all the vegetation on the island, particularly endangered plant species.

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Lobate lac scale, Paratachardina pseudolobata (Hemiptera: Keriidae), in Hawaii's urban landscape: Hosts and management

International Journal of Tropical Insect Science ◽

10.1017/s174275841700025x ◽

2017 ◽

Vol 38 (01) ◽

pp. 71-76

Author(s):

Bishnu Prasad Bhandari ◽

Zhiqiang Cheng

Keyword(s):

Host Plant ◽

Plant Species ◽

Host Species ◽

Urban Landscape ◽

Preventive Treatment ◽

Post Treatment ◽

Native Plant ◽

New Host ◽

Host Plant Species ◽

Trunk Injection

AbstractThe lobate lac scale,Paratachardina pseudolobataKondo & Gullan, is a recent insect invader to Hawaii that was first found in October 2012 on Oahu, Hawaii. It infests young branches of woody plants (usually less than 2 cm in diameter), forming a mass that appears as a dark crust, resulting in an unhealthy appearance, defoliation of leaves, and death of some plant species. This insect has infested many native and non-native plant species on Oahu, and the number of infested plant species is increasing. Our recent survey results, reported in this article, revealed 28 new host plant species in addition to 83 host species that we had reported previously, making 111 host plant species in Oahu's urban landscape. Efficacy and longevity of preventive treatment using the systemic insecticides imidacloprid and emamectin benzoate, delivered through trunk injection, against lobate lac scale on Chinese banyan,Ficus microcarpa, and curative treatment using imidacloprid on weeping banyan,Ficus benjamina, were evaluated. Forty-five Chinese banyans and 10 weeping banyans were included in this study. Our findings suggest that imidacloprid delivered via trunk injection is effective in preventing lobate lac scale infestation for at least 22 months post-treatment, and also in reducing lobate lac scale infestation curatively for at least 20 months post-treatment. This study provides an update on lobate lac scale's host species in Hawaii's urban landscape, and an effective preventive and curative management strategy against this pest.

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An introduced crop plant is driving diversification of the virulent bacterial pathogenErwinia tracheiphila

10.1101/345009 ◽

2018 ◽

Author(s):

Lori R. Shapiro ◽

Joseph N. Paulson ◽

Brian J. Arnold ◽

Erin D. Scully ◽

Olga Zhaxybayeva ◽

...

Keyword(s):

North America ◽

Host Plant ◽

Plant Species ◽

Crop Plants ◽

Crop Plant ◽

Comparative Genomic ◽

Eastern North America ◽

Erwinia Tracheiphila ◽

Susceptible Host ◽

Host Plant Species

AbstractErwinia tracheiphilais the causal agent of bacterial wilt of cucurbits, an economically important phytopathogen affecting few cultivated Cucurbitaceae host plant species in temperate Eastern North America. However, essentially nothing is known aboutE. tracheiphilapopulation structure or genetic diversity. To address this shortcoming, a representative collection of 88E. tracheiphilaisolates was gathered from throughout its geographic range, and their genomes were sequenced. Phylogenomic analysis revealed three genetic clusters with distincthrpT3SS virulence gene repertoires, host plant association patterns, and geographic distributions. The low genetic variation within each cluster suggests a recent population bottleneck followed by population expansion. We showed that in the field and greenhouse, cucumber (Cucumis sativus), which was introduced to North America by early Spanish conquistadors, is the most susceptible host plant species, and the only species susceptible to isolates from all three lineages. The establishment of large agricultural populations of highly susceptibleC. sativusin temperate Eastern North America may have facilitated the original emergence ofE. tracheiphilainto cucurbit agro-ecosystems, and this introduced plant species may now be acting as a highly susceptible reservoir host. Our findings have broad implications for agricultural sustainability by drawing attention to how worldwide crop plant movement, agricultural intensification and locally unique environments may affect the emergence, evolution, and epidemic persistence of virulent microbial pathogens.ImportanceErwinia tracheiphilais a virulent phytopathogen that infects two genera of cucurbit crop plants,Cucurbitaspp. (pumpkin and squash) andCucumisspp. (muskmelon and cucumber). One of the unusual ecological traits of this pathogen is that it is limited to temperate Eastern North America. Here, we complete the first large-scale sequencing of anE. tracheiphilaisolate collection. From phylogenomic, comparative genomic, and empirical analyses, we find that introducedCucumisspp. crop plants are driving the diversification ofE. tracheiphilainto multiple, closely related lineages. Together, the results from this study show that locally unique biotic (plant population) and abiotic (climate) conditions can drive the evolutionary trajectories of locally endemic pathogens in unexpected ways.

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An Introduced Crop Plant Is Driving Diversification of the Virulent Bacterial PathogenErwinia tracheiphila

mBio ◽

10.1128/mbio.01307-18 ◽

2018 ◽

Vol 9 (5) ◽

Cited By ~ 11

Author(s):

Lori R. Shapiro ◽

Joseph N. Paulson ◽

Brian J. Arnold ◽

Erin D. Scully ◽

Olga Zhaxybayeva ◽

...

Keyword(s):

North America ◽

Host Plant ◽

Plant Species ◽

Crop Plants ◽

Crop Plant ◽

Eastern North America ◽

Erwinia Tracheiphila ◽

Susceptible Host ◽

Content Type ◽

Host Plant Species

ABSTRACTErwinia tracheiphilais the causal agent of bacterial wilt of cucurbits, an economically important phytopathogen affecting an economically important phytopathogen affecting few cultivated Cucurbitaceae few cultivated Cucurbitaceae host plant species in temperate eastern North America. However, essentially nothing is known aboutE. tracheiphilapopulation structure or genetic diversity. To address this shortcoming, a representative collection of 88E. tracheiphilaisolates was gathered from throughout its geographic range, and their genomes were sequenced. Phylogenomic analysis revealed three genetic clusters with distincthrpT3SS virulence gene repertoires, host plant association patterns, and geographic distributions. Low genetic heterogeneity within each cluster suggests a recent population bottleneck followed by population expansion. We showed that in the field and greenhouse, cucumber (Cucumis sativus), which was introduced to North America by early Spanish conquistadors, is the most susceptible host plant species and the only species susceptible to isolates from all three lineages. The establishment of large agricultural populations of highly susceptibleC. sativusin temperate eastern North America may have facilitated the original emergence ofE. tracheiphilainto cucurbit agroecosystems, and this introduced plant species may now be acting as a highly susceptible reservoir host. Our findings have broad implications for agricultural sustainability by drawing attention to how worldwide crop plant movement, agricultural intensification, and locally unique environments may affect the emergence, evolution, and epidemic persistence of virulent microbial pathogens.IMPORTANCEErwinia tracheiphilais a virulent phytopathogen that infects two genera of cucurbit crop plants,Cucurbitaspp. (pumpkin and squash) andCucumisspp. (muskmelon and cucumber). One of the unusual ecological traits of this pathogen is that it is limited to temperate eastern North America. Here, we complete the first large-scale sequencing of anE. tracheiphilaisolate collection. From phylogenomic, comparative genomic, and empirical analyses, we find that introducedCucumisspp. crop plants are driving the diversification ofE. tracheiphilainto multiple lineages. Together, the results from this study show that locally unique biotic (plant population) and abiotic (climate) conditions can drive the evolutionary trajectories of locally endemic pathogens in unexpected ways.

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