Life Table and Nutritional Ecology of <i>Epilachna vigintioctopunctata</i> Fab. (Colioptera: Coccinellidae) on Three Host Plants
Bibliographic record
Abstract
Host preference in relation to life table parameters and nutritional ecology of Epilachna vigintioctopunctata Fab. were studied under laboratory conditions. The pest, E. vigintioctopunctata showed more feeding preference and higher reproductive growth to its host plant, Solanum melongena followed by S. nigrum and Momordica cochinchinensis . The developmental duration of their neonates was shorter with higher adult longevity, fecundity, hatchability, and accumulated survivability in S. melongena followed by S. nigrum and M. cochinchinensis . The feeding indices and population parameters of E. vigintioctopunctata were significantly higher (P < 0.05) on S. melongena relative to the other host plants. The pest on S. melongena has shorter mean generation time (T c ) of 59.10 days with higher net reproductive rate (R 0 ) of 16.63. Their generation survival (GS) on S. melongena (0.582) is significantly higher than S. nigrum (0.568) and M. cochinchinensis (0.550) with reverse of total generation mortality (K) of 0.290, 0.308 and 0.376, respectively. These differences in the nutritional ecology and demographic parameters are due to the variation in their phytochemical regime of respective host plants. Thus, the study may help to find the most vulnerable stage (egg and pupal stage) of this pest for appropriate control measures and also supports the use of S. nigrum as an alternative host towards S. melongena and as a trap crop towards M. cochinchinensis to avoid or minimum invasion of this pest for sustainable agriculture.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".