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Record W4406282411 · doi:10.5539/jas.v17n2p30

Identification of Insects in Crotalaria spp. in an Urban Experimental Area at Brasília, Brazil

2025· article· en· W4406282411 on OpenAlexvenueno aff
Kleyson Alves de Freitas, Raí Saavedra Lemos, Marcelo Tavares de Castro

Bibliographic record

VenueJournal of Agricultural Science · 2025
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicInsect and Pesticide Research
Canadian institutionsnot available
Fundersnot available
KeywordsIdentification (biology)CrotalariaBiologyGeographyAgroforestryCrotalaria junceaBotanyEcologyGreen manure

Abstract

fetched live from OpenAlex

Plants of the Crotalaria genus are of great importance, for example: they stand out as green manure. This work aimed to verify the occurrence of insects in C. juncea, C. spectabilis and C. ochroleuca. The experiment was performed out in an urban experimental area at Faculdade ICESP de Brasília, Águas Claras unit, Distrito Federal, Brazil, from March to June 2018. The experiment was installed in a randomized block design with nine experimental units of 1 m2. Three beds were divided into three experimental units for 1 m2, 50 seeds were planting at a spacing of 10 cm between rows and 10 cm between plants. The plants were evaluated weekly, where all insects were collected, counted and stored in glass jars with 70% alcohol. Plants were analyzed for attack and mortality was recorded for 11 weeks. The data were submitted to ANOVA and the Tukey test (α ≤ 0.05) using the R program. As a result, 767 insects from five orders and 10 different families were collected in the three species of Crotalaria used in this study, C. juncea was the species that attracted the most insects (415) and C. spectabilis presented the lowest number (126). Diabrotica speciosa caused great damage to species studied, especially C. juncea, and could become a harmful insect of importance for culture. Additionally, U. ornatrix was found in all three species, but in greater numbers in C. juncea and C. spectabilis.

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.035
Threshold uncertainty score0.070

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
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 head0.022
GPT teacher head0.301
Teacher spread0.278 · 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 designObservational
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
Published2025
Admission routes1
Has abstractyes

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