Data from: Sex pheromones from Linyphia triangularis (Araneae: Linyphiidae) and Aphidoletes aphidimyza (Diptera: Cecidomyiidae) are promising attractants for Aphidoletes aphidimyza (Diptera: Cecidomyiidae)
Data files
Feb 02, 2026 version files 12.80 KB
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Figure_1.csv
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Figure_10-11.csv
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Figure_2.csv
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Figure_3-5.csv
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Figure_6-8.csv
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Figure_9.csv
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README.md
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Abstract
Although Aphidoletes aphidimyza (Rondani) is a predator of aphids, its biocontrol efficacy depends largely on oviposition behavior. Previous studies have shown that spider webs can attract A. aphidimyza and enhance its oviposition. It has been hypothesized that sex pheromones from spider webs and A. aphidimyza itself may affect its mating and oviposition, but this remains unconfirmed. In our study, we selected (2R,7S)-diacetoxytridecane (sex pheromone of A. aphidimyza), (R)-3-hydroxybutyric acid (sex pheromone of Linyphia triangularis (Clerck)), and a mixture of these pheromones (at a 10:1 concentration ratio) to investigate their overall response on A. aphidimyza in terms of electroantennogram, behavior, fecundity, attraction, and aphid control. Our results indicated that these pheromones elicited antennal responses in A. aphidimyza. Specifically, (2R,7S)-diacetoxytridecane significantly attracted males, while (R)-3-hydroxybutyric acid significantly attracted females; their mixture attracted both sexes. These compounds did not affect oviposition and lifespan of A. aphidimyza. The pheromone mixture attracted significantly more A. aphidimyza than the control group. The number of aphids in the mixture group began to decline one day earlier than that in the control group and ultimately achieved a 100% control effect against aphids in a greenhouse. Our findings provide evidence for further exploration of the relationship between L. triangularis and A. aphidimyza. The studied pheromone blend shows potential as an attractant for A. aphidimyza, which could enhance aphid biological control in greenhouses.
Dataset DOI: 10.5061/dryad.w3r22814j
Description of the data and file structure
In this study, we investigated the response of A. aphidimyza to sex pheromones by performing five key experiments: (i) the EAG response of A. aphidimyza to the sex pheromones of L. triangularis and A. aphidimyza; (ii) the behavioral responses of A. aphidimyza to sex pheromones from L. triangularis and A. aphidimyza and their mixture; (iii) the effects of sex pheromones from L. triangularis and A. aphidimyza, and their mixture on the oviposition and lifespan of A. aphidimyza; (iv) the bidirectional selection of A. aphidimyza to mixed pheromone; and (v) the control effect of the mixed pheromone attractant from A. aphidimyza on A. craccivora in a greenhouse.
Figure_1.csv
The electroantennogram response of Aphidoletes aphidimyza to different concentrations of(R)-3-hydroxybutyric acid.
Figure_2.csv
The electroantennogram response of male Aphidoletes aphidimyza to different concentrations of (2R 7S)-diacetoxytridecane.
Figure_3-5.csv
Behavioral responses of Aphidoletes aphidimyza to(R)-3-hydroxybutyric acid (2R 7S)-diacetoxytridecane mixture and individual pheromones at the same concentrations as in the mixture.
Figure_6-8.csv
The number of egglayers and lifespan for female Aphidoletes aphidimyza at different concentrations of (2R7S)-diacetoxytridecane(R)-3-hydroxybutyric and mixture.
Figure_9.csv
The numberof Aphidoletes aphidimyza attracted to mixture.
Figure_10-11.csv
Dynamic changes in the population of Aphis craccivora following the release of Aphidoletes aphidimyzaand the ability of Aphidoletes aphidimyza to control Aphis craccivora at different times after release in a greenhouse.