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Record W7030613324

Non-target effects of reduced risk pesticides on beneficial arthropods used in greenhouse vegetable production

2009· dissertation· en· W7030613324 on OpenAlexaboutno aff

Bibliographic record

VenueThe Atrium (University of Guelph) · 2009
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicInsect-Plant Interactions and Control
Canadian institutionsnot available
Fundersnot available
KeywordsPesticideGreenhousePest controlFludioxonilBeneficial insectsPesticide residueBrood
DOInot available

Abstract

fetched live from OpenAlex

This research examined the toxicity of reduced risk insecticides (imidacloprid, abamectin, metaflumizone, and chlorantraniliprole) and fungicides (myclobutanil, potassium bicarbonate, and cyprodinil + fludioxonil) used or with promise for use in Canadian greenhouse vegetable production to three species of arthropod biological control agents ['Orius insidiosus' Say, ' Amblyseius swirskii' (Athias-Henriot), and 'Eretmocerus eremicus' Rose & Zolnerowich] and bumble bees ['Bombus impatiens' (Cresson)]. Imidacloprid, abamectin, and metaflumizone were moderately harmful to harmful at high concentrations when applied directly to bumble bees and caused sub-lethal effects on worker lifespan and brood production following oral exposure. Metaflumizone was harmful as a direct application, but did not induce sub-lethal changes. Chlorantraniliprole, myclobutanil, potassium bicarbonate, and cyprodinil + fludioxonil were harmless to bumble bees. Generally, pesticide residues were harmless to adult 'O. insidiosus, A. swirskii,' and 'E. eremicus.' However, metaflumizone was slightly harmful to 'E. eremicus.' I conclude that metaflumizone, chlorantraniliprole, myclobutanil, potassium bicarbonate, or cyprodinil + fludioxonil can be applied for greenhouse vegetable pest management with minimal harm to bumble bees and biological control agents.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.024
Threshold uncertainty score0.047

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.008
GPT teacher head0.200
Teacher spread0.193 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2009
Admission routes1
Has abstractyes

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