Phototactic behaviour of<i>Pachyneuron aphidis</i>(Hymenoptera: Pteromalidae) – hyperparasitoid of<i>Myzus persicae</i>(Hemiptera: Aphidiae)

Chen, Z.; Liu, X.; Zhou, Jiaying; Dou, Huating; Rong-ping, Kuang

doi:10.1080/09583157.2014.945901

Cited by 12 publications

(9 citation statements)

References 30 publications

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“…The phototactic rate of the two species increased with the light intensity in our study, which consisted of the phototactic behavior pattern of most insects [ 22 ]. In comparison, decreased phototactic responses with increasing light intensities at high intensities for both UV light and blue light were found for a common hyperparasitoid, Pachyneuron aphidis (Hymenoptera: Pteromalidae), showing a negative behavior pattern [ 23 ]. Moreover, the phototactic response of Thrips tabaci was shown to decrease at the middle light intensity, showing a wavy manner [ 25 ].…”

Section: Discussionmentioning

confidence: 99%

“…Besides, even for the same insect, the phototactic rate varied with light intensity after being exposed to the same light wavelength [ 20 , 21 ]. Four relationships between phototactic rate and light intensity, i.e., positive correlation, negative correlation, wavy correlation, and uncorrelation were discovered in different insects [ 22 , 23 , 24 , 25 ]. Therefore, it is necessary to study the species-specificity of phototactic behavior, light source, and light intensity in different species [ 20 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Phototactic Behavior between Two Migratory Pests, Helicoverpa armigera and Spodoptera frugiperda

Wang

Chang

Zhang

et al. 2022

Insects

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The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is an important migratory pest, causing great losses to agricultural production. Light trapping is a pesticide-free method for pest control and is influenced by many factors, especially wavelength and light intensity. In this study, a series of phototactic behavioral assays were carried out and the physical parameters were included to identify phototactic responses of S. frugiperda, with Helicoverpa armigera as control. It was found that S. frugiperda showed the highest average phototactic rate to blue light among five different LED lights. The phototactic rates of the two moths increased gradually with light intensity and were not obviously influenced by sex. In addition, the phototactic rate of S. frugiperda was significantly lower under a low light intensity of UV light than that of H. armigera, further confirmed by the indoor simulation experiment and EC50. According to the obtained parameters, the trapping distance of S. frugiperda to blue light was smaller than that of H. armigera to UV light. Therefore, we summarized a proposal of using blue light for light traps to control S. frugiperda, with a maximum distance of no more than 108 m. These results provide an experimental and theoretical basis for improving light-trapping techniques for managing S. frugiperda.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of Phototactic Behavior between Two Migratory Pests, Helicoverpa armigera and Spodoptera frugiperda

Wang

Chang

Zhang

et al. 2022

Insects

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“…3). In Hymenoptera, visual photoreceptors peak in the UV, blue and green (λ max = 344 nm, 436 nm and 544 nm receptors, respectively) 23,24 and adult wasps respond to these wavelengths 9,10 . Photoreceptors for red have been found in a few large-bodied hymenopteran taxa but not in Ichneumonidae 25 .…”

Section: Discussionmentioning

confidence: 99%

Negative phototaxis of jumping cocooned parasitoid wasp larvae against short wavelengths and physicochemical properties of the cocoon shell

Iwase

Sugawara

Fukuda

et al. 2022

Preprint

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A parasitoid wasp, Bathyplectes anurus, is a successful biocontrol agent against the alfalfa weevil, a pest of beneficial fabaceous plants such as alfalfa and chinese milk vetch. One of the possible reasons for the success in hot climates may be the ability of the cocooned larvae of this wasp to repeatedly jump and roll until they relocate themselves away from detrimental sunlight and heat. It is not yet known which wavelengths of light trigger the larval avoidance behavior, and microstructure of the cocoon shell that should allow light transmission. Here, the response of the cocooned larvae to different wavelengths, and the microstructure, hardness and elemental components of the cocoon shell were studied. A population of cocooned larvae were introduced on the boundary line between illuminated and shaded areas with blue, green, red, or near-infrared light-emitting diodes. The cocoons moved away from the blue and green light. The distance from the boundary to the cocoons in the shaded area was longer under these long wavelengths, followed by the red light and shortest under the near-infrared light and nil under darkness. No difference was found in mortality between different wavelengths after three days of illumination. Scanning electron microscope observations of the surface of the cocoon shell revealed that the belt-like middle ridge was porous with fibers, which likely allows ventilation and light transmission. The ridge and main body showed similar elemental composition, except that the ridge contained higher proportions of sulfur and calcium and was 1.9 times harder than the main body.

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“…Trap color should be considered because hyperparasitoids may respond to different colors to their primary parasitoid hosts. For example, the aphid hyperparasitoid Pachyneuron aphidis is sensitive to yellow light, unlike its host Aphidius gifuensis , suggesting that yellow sticky traps would be a good choice in this case. The number of hyperparasitoids present in/on traps could be used to assess trap efficacy and inspections should also evaluate how many beneficial insects are removed from the agricultural environment.…”

Section: Conclusion and Future Researchmentioning

confidence: 99%

Exploiting chemical ecology to manage hyperparasitoids in biological control of arthropod pests

Cusumano

Harvey

Bourne

et al. 2019

Pest Management Science

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Insect hyperparasitoids are fourth trophic level organisms that commonly occur in terrestrial food webs, yet they are relatively understudied. These top-carnivores can disrupt biological pest control by suppressing the populations of their parasitoid hosts, leading to pest outbreaks, especially in confined environments such as greenhouses where augmentative biological control is used. There is no effective eco-friendly strategy that can be used to control hyperparasitoids. Recent advances in the chemical ecology of hyperparasitoid foraging behavior have opened opportunities for manipulating these top-carnivores in such a way that biological pest control becomes more efficient. We propose various infochemical-based strategies to manage hyperparasitoids. We suggest that a push-pull strategy could be a promising approach to 'push' hyperparasitoids away from their parasitoid hosts and 'pull' them into traps. Additionally, we discuss how infochemicals can be used to develop innovative tools improving biological pest control (i) to restrict accessibility of resources (e.g. sugars and alternative hosts) to primary parasitoid only or (ii) to monitor hyperparasitoid presence in the crop for early detection. We also identify important missing information in order to control hyperparasitoids and outline what research is needed to reach this goal. Testing the efficacy of synthetic infochemicals in confined environments is a crucial step towards the implementation of chemical ecology-based approaches targeting hyperparasitoids.

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Phototactic behaviour ofPachyneuron aphidis(Hymenoptera: Pteromalidae) – hyperparasitoid ofMyzus persicae(Hemiptera: Aphidiae)

Cited by 12 publications

References 30 publications

Comparison of Phototactic Behavior between Two Migratory Pests, Helicoverpa armigera and Spodoptera frugiperda

Comparison of Phototactic Behavior between Two Migratory Pests, Helicoverpa armigera and Spodoptera frugiperda

Negative phototaxis of jumping cocooned parasitoid wasp larvae against short wavelengths and physicochemical properties of the cocoon shell

Exploiting chemical ecology to manage hyperparasitoids in biological control of arthropod pests

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