Andrew S. Jensen
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View article: Landscapes with higher crop diversity have lower aphid species richness but higher plant virus prevalence
Landscapes with higher crop diversity have lower aphid species richness but higher plant virus prevalence Open
Diversifying agricultural systems by growing more than one crop species in an area can decrease pest and disease pressure and increase crop yields. However, there is a lack of information on how crop diversity at larger spatial scales infl…
View article: Identification of three new ‘Candidatus Liberibacter solanacearum’ haplotypes in four psyllid species (Hemiptera: Psylloidea)
Identification of three new ‘Candidatus Liberibacter solanacearum’ haplotypes in four psyllid species (Hemiptera: Psylloidea) Open
Eleven haplotypes of the bacterium, ‘Candidatus Liberibacter solanacearum’, have been identified worldwide, several of which infect important agricultural crops. In the United States, haplotypes A and B are associated with yield and qualit…
View article: Alternative Prey and Predator Interference Mediate Thrips Consumption by Generalists
Alternative Prey and Predator Interference Mediate Thrips Consumption by Generalists Open
Generalist predators’ complex feeding relationships make it difficult to predict their contribution to pest suppression. Alternative prey can either distract predators from attacking pests, weakening biocontrol, or provide food that suppor…
View article: Alternative prey mediate intraguild predation in the open field
Alternative prey mediate intraguild predation in the open field Open
BACKGROUND Generalist predators that kill and eat other natural enemies can weaken biological control. However, pest suppression can be disrupted even if actual intraguild predation is infrequent, if predators reduce their foraging to lowe…
View article: Host plants and <i>Wolbachia</i> shape the population genetics of sympatric herbivore populations
Host plants and <i>Wolbachia</i> shape the population genetics of sympatric herbivore populations Open
Changing climate and land‐use practices have the potential to bring previously isolated populations of pest insects into new sympatry. This heightens the need to better understand how differing patterns of host–plant association, and uniqu…
View article: Organic Farming Sharpens Plant Defenses in the Field
Organic Farming Sharpens Plant Defenses in the Field Open
Plants deploy a variety of chemical and physical defenses to protect themselves against herbivores and pathogens. Organic farming seeks to enhance these responses by improving soil quality, ultimately altering bottom up regulation of plant…
View article: New Macrosiphum Passerini (Hemiptera: Aphididae) Information from Western North America, Including One New Species and One New Synonymy
New Macrosiphum Passerini (Hemiptera: Aphididae) Information from Western North America, Including One New Species and One New Synonymy Open
Jensen, Andrew S., Rorabaugh, Jesse (2020): New Macrosiphum Passerini (Hemiptera: Aphididae) Information From Western North America, Including One New Species And One New Synonymy. Proceedings of the Entomological Society of Washington 122…
View article: A review of the aphid genus <i>Macrosiphoniella</i> del Guercio, 1911 (Hemiptera: Aphididae) in the USA with description of a new species
A review of the aphid genus <i>Macrosiphoniella</i> del Guercio, 1911 (Hemiptera: Aphididae) in the USA with description of a new species Open
Here we present a review of the 18 species of the Macrosiphini genus Macrosiphoniella (Hemiptera: Aphididae) known to occur in the United States of America, representing two subgenera, Macrosiphoniella and Phalangomyzus Börner, 1939. We re…
View article: Host and Non-host ‘Whistle Stops’ for Psyllids: Molecular Gut Content Analysis by High-Throughput Sequencing Reveals Landscape-Level Movements of Psylloidea (Hemiptera)
Host and Non-host ‘Whistle Stops’ for Psyllids: Molecular Gut Content Analysis by High-Throughput Sequencing Reveals Landscape-Level Movements of Psylloidea (Hemiptera) Open
Psyllids (Hemiptera: Psylloidea) are phloem-feeding insects that tend to be highly specific in their host plants. Some species are well-known agricultural pests, often as vectors of plant pathogens. Many pest psyllids colonize agricultural…
View article: A New Species of Macrosiphum Passerini (Hemiptera: Aphididae) from Mexico on the Introduced Plant Pittosporum undulatum Ventenat (Pittosporaceae)
A New Species of Macrosiphum Passerini (Hemiptera: Aphididae) from Mexico on the Introduced Plant Pittosporum undulatum Ventenat (Pittosporaceae) Open
Jensen, Andrew S., Martinez, Rebeca Peña-, Viveros, Ana Lilia Muñoz-, Rorabaugh, Jesse (2019): A New Species Of Macrosiphum Passerini (Hemiptera: Aphididae) From Mexico On The Introduced Plant Pittosporum Undulatum Ventenat (Pittosporaceae…
View article: A New Species Of Macrosiphum Passerini (Hemiptera: Aphididae) From Mexico On The Introduced Plant Pittosporum Undulatum Ventenat (Pittosporaceae)
A New Species Of Macrosiphum Passerini (Hemiptera: Aphididae) From Mexico On The Introduced Plant Pittosporum Undulatum Ventenat (Pittosporaceae) Open
This dataset contains the digitized treatments in Plazi based on the original journal article Jensen, Andrew S., Martinez, Rebeca Peña-, Viveros, Ana Lilia Muñoz-, Rorabaugh, Jesse (2019): A New Species Of Macrosiphum Passerini (Hemiptera:…
View article: Ericaphis voegtlini, a new, unusual aphid species from the USA (Hemiptera, Aphididae)
Ericaphis voegtlini, a new, unusual aphid species from the USA (Hemiptera, Aphididae) Open
Ericaphisvoegtlini sp. n. living on Chamaebatiafoliolosa (Rosaceae) in California is described based on apterous and alate viviparous females. The new species differs from all other species of the genus Ericaphis Börner, 1939 in several im…
View article: A comparative morphological revision of the aphid genus Myzaphis van der Goot, 1913 (Insecta: Hemiptera: Aphididae) revealed a new genus and three new species
A comparative morphological revision of the aphid genus Myzaphis van der Goot, 1913 (Insecta: Hemiptera: Aphididae) revealed a new genus and three new species Open
The aphid genus Myzaphis van der Goot, 1913 from the tribe Macrosiphini is revised to include eight species. Apterous and alate viviparous females, known fundatrices and known sexual morphs (oviparous females and males) of Myzaphis buckton…
View article: Using NextRAD sequencing to infer movement of herbivores among host plants
Using NextRAD sequencing to infer movement of herbivores among host plants Open
Herbivores often move among spatially interspersed host plants, tracking high-quality resources through space and time. This dispersal is of particular interest for vectors of plant pathogens. Existing molecular tools to track such movemen…
View article: Inferring local movement of pathogen vectors among hosts
Inferring local movement of pathogen vectors among hosts Open
Herbivores often move among spatially interspersed host plants, tracking high-quality resources through space and time. This dispersal is of particular interest for vectors of plant pathogens. Existing molecular tools to track such movemen…
View article: A New Problem and Old Questions: Potato Psyllid in the Pacific Northwest
A New Problem and Old Questions: Potato Psyllid in the Pacific Northwest Open
The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae) is a small phloem-feeding insect that develops almost exclusively on plants within the Solanaceae (Fig. 1A). The psyllid was described in 1909 by Karel Sulc from spec…
View article: Absence of photoperiod effects on mating and ovarian maturation by three haplotypes of potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae)
Absence of photoperiod effects on mating and ovarian maturation by three haplotypes of potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae) Open
We examined the effects of photoperiod on reproductive diapause of three haplotypes of potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae), collected from three geographic locations: south Texas (Central haplotype), California (W…