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Record W2052849523 · doi:10.4141/cjps07181

Insecticidal control of late-season plant bug (Hemiptera: Miridae) infestations in Manitoba has no effect on alfalfa seed quantity and quality

2008· article· en· W2052849523 on OpenAlex
Ayman Mostafa, N. J. Holliday

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.
venuePublished in a venue whose home country is Canada.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueCanadian Journal of Plant Science · 2008
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicHemiptera Insect Studies
Canadian institutionsUniversity of Manitoba
FundersNatural Sciences and Engineering Research Council of CanadaUniversity of ManitobaManitoba Rural Adaptation Council
KeywordsMiridaeLygusBiologyAgronomyTarnished plant bugHeteropteraCropHemipteraToxicologyBotany

Abstract

fetched live from OpenAlex

In Manitoba, plant bugs (Lygus spp. and Adelphocoris spp.) can be numerous in seed alfalfa crops in late August and September and are often the target of insecticide applications. From 2002 to 2004 in field plots in commercial fields, one or two insecticide applications in late August and September were made to reduce plant bug numbers relative to those in untreated check plots. Despite significant reductions in plant bug numbers in sweep net samples in sprayed plots, there were no significant effects of treatments on total seed yield per unit area, seed weight, percentage germination or percentage of hard seed. Relative to the check plots, reductions in plant bug numbers in insecticide-treated plots were not associated with increases in seed yield. Also, seed yield increases in insecticide-treated plots were not correlated with numbers of plant bugs immediately before insecticide application, and so it was not possible to estimate an economic injury level. The practice of applying an insecticide in August to control late-season plant bugs is economically unjustified within the range of plant bug numbers encountered in this study. Key words: Plant bugs, alfalfa seed, Lygus, Adelphocoris, economic impact

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.360
Threshold uncertainty score0.936

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.045
GPT teacher head0.232
Teacher spread0.188 · 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