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Computer vision–aided classification of insecticide-induced behavioral patterns in Aphis gossypii (Hemiptera: Aphididae)

Yoon, Junho LU orcid and Tak, Jun-Hyung (2026) In Journal of Economic Entomology
Abstract
Electrophysiological approaches are widely used to characterize insecticide target sites, whereas behavioral symptoms associated with different modes of action remain less quantitatively explored. Here, we developed a computer vision–based framework to quantify insecticide-induced behavioral responses in the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae). Convolutional neural networks were trained on 253 video recordings of aphids treated with neonicotinoid, organophosphate, or pyrethroid insecticides. A top-down pose-estimation approach enabled reliable detection of 11 body parts, from which 66 behavioral features were extracted. Feature selection and machine-learning classification were used to evaluate differentiation among... (More)
Electrophysiological approaches are widely used to characterize insecticide target sites, whereas behavioral symptoms associated with different modes of action remain less quantitatively explored. Here, we developed a computer vision–based framework to quantify insecticide-induced behavioral responses in the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae). Convolutional neural networks were trained on 253 video recordings of aphids treated with neonicotinoid, organophosphate, or pyrethroid insecticides. A top-down pose-estimation approach enabled reliable detection of 11 body parts, from which 66 behavioral features were extracted. Feature selection and machine-learning classification were used to evaluate differentiation among insecticide classes. Among 31 tested algorithms, bagging ensemble trees showed the highest performance, achieving 74.36% accuracy and a macro-averaged Area Under the Curve (AUC) of 0.895 on the independent test set. Classification of additional compounds within trained classes showed moderate predictive consistency, whereas compounds with untrained modes of action produced dispersed prediction patterns across classes. These findings demonstrate that automated behavioral profiling can capture class-associated patterns under controlled conditions and may provide a quantitative complement to conventional toxicological assays. (Less)
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type
Contribution to journal
publication status
published
subject
in
Journal of Economic Entomology
article number
toag246
publisher
Oxford University Press
external identifiers
  • pmid:42616756
ISSN
0022-0493
DOI
10.1093/jee/toag246
language
English
LU publication?
yes
id
b4839a5d-7cb3-4abf-9e60-0962080dcc82
date added to LUP
2026-09-17 10:14:13
date last changed
2026-09-22 03:38:36
@article{b4839a5d-7cb3-4abf-9e60-0962080dcc82,
  abstract     = {{Electrophysiological approaches are widely used to characterize insecticide target sites, whereas behavioral symptoms associated with different modes of action remain less quantitatively explored. Here, we developed a computer vision–based framework to quantify insecticide-induced behavioral responses in the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae). Convolutional neural networks were trained on 253 video recordings of aphids treated with neonicotinoid, organophosphate, or pyrethroid insecticides. A top-down pose-estimation approach enabled reliable detection of 11 body parts, from which 66 behavioral features were extracted. Feature selection and machine-learning classification were used to evaluate differentiation among insecticide classes. Among 31 tested algorithms, bagging ensemble trees showed the highest performance, achieving 74.36% accuracy and a macro-averaged Area Under the Curve (AUC) of 0.895 on the independent test set. Classification of additional compounds within trained classes showed moderate predictive consistency, whereas compounds with untrained modes of action produced dispersed prediction patterns across classes. These findings demonstrate that automated behavioral profiling can capture class-associated patterns under controlled conditions and may provide a quantitative complement to conventional toxicological assays.}},
  author       = {{Yoon, Junho and Tak, Jun-Hyung}},
  issn         = {{0022-0493}},
  language     = {{eng}},
  month        = {{08}},
  publisher    = {{Oxford University Press}},
  series       = {{Journal of Economic Entomology}},
  title        = {{Computer vision–aided classification of insecticide-induced behavioral patterns in Aphis gossypii (Hemiptera: Aphididae)}},
  url          = {{http://dx.doi.org/10.1093/jee/toag246}},
  doi          = {{10.1093/jee/toag246}},
  year         = {{2026}},
}