Biological Parameters and Fertility Life Table of Spodoptera frugiperda in Different Host Plants
Bibliographic record
Abstract
This work evaluated the biology and life table parameters of susceptible populations (Sus) of Spodoptera frugiperda to insecticides and Bt proteins, in conventional maize, Bt YieldGard VT PRO™ (Cry1A. 105/Cry2Ab) and PowerCore™ (Cry1A.105/Cry2Ab/Cry1F), millet and sorghum to better feeding behavior in this population. The following parameters were assessed: width of the cephalic capsule, duration and viability of larval, pupal and egg stages, pupal weight, sex ratio, adult longevity, pre-oviposition and oviposition period and daily fecundity The larval diet affected most of the parameters analyzed, with the exception of adult longevity and the period of embryonic development. The sus population completed its development in all hosts except in the VT PRO™ and PowerCore™ technologies. Non-Bt maize (87.50%) had higher larval viability, with larvae pupating nearly twice as fast (14,364 days) than sorghum (22,663 days) and millet (25,153 days), with the lowest viability (25.63%) and longest larval stage observed in millet. The pre-oviposition period was significantly shorter in maize (2.2 days) and longer in millet (6.5 days). Females fed on maize (1872.3) also showed higher total fertility than sorghum (671.0) and millet (405.0). Our results suggest that millet is the least suitable host for the development of this population. Although maize is considered the preferred host, S. frugiperda was able to complete its development in most of the tested hosts, indicating that sorghum and millet, plants commonly cultivated in the main producing regions of Brazil, can sustain susceptible populations in the field, although not as productively as maize and can act as a reservoir for the pest between seasons.
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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) | 0.000 | 0.000 |
| 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) | 0.000 | 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".