Dispersal of Bactericera cockerelli (Hemiptera: Triozidae) in relation to phenology of Lycium barbarum (Solanaceae)
Bibliographic record
Abstract
Bactericera cockerelli (Sulc) (Hemiptera: Triozidae) is a key pest of potato ( Solanum tuberosum ) and tomato ( S. lycopersicum ) in western North America. Native Lycium (Solanales: Solanaceae) in the southwestern U.S. have been known since the early 1900s to support populations of B. cockerelli . These shrubs are adapted to survive arid habitats by entering a summer dormancy characterized by partial or complete defoliation. Summer leaf fall by native Lycium in the southwestern U.S. triggers the dispersal of B. cockerelli to new seasonally available hosts including potato. Recently, B. cockerelli in the Pacific Northwest (Washington, Oregon, and Idaho) was found to occur on a non-native Lycium known as matrimony vine. Monitoring of matrimony vine at several locations in previous years suggested qualitatively that this non-native shrub in the Pacific Northwest also entered a summer dormancy with effects on psyllids populations. Our study had three principal objectives: 1) examine the genetic and morphological diversity of matrimony vine in potato growing regions of the Pacific Northwest, 2) document when and under what conditions matrimony vine enters summer dormancy, and 3) determine whether summer leaf fall is associated with dispersal of B. cockerelli from these plants. We report that “matrimony vine” in Washington State includes at least two morphologically distinct varieties of a single non-native species, L. barbarum . Like the native Lycium species in the desert southwestern U.S., matrimony vine in Washington entered a period of summer dormancy in response to low soil moisture, and the onset of summer dormancy was associated with dispersal of B. cockerelli from the matrimony vine host, with potato being a potential destination for some of those dispersing psyllids.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".