Parasitism efficiency and progeny fitness of Peristenus spretus Chen et van Achterberg vary with nymphal instar of host, Apolygus lucorum (Meyer-Dür)

Luo, Shuping; Xia, Shike; Lu, Yanhui; Wu, Kongming

doi:10.1016/j.biocontrol.2022.104839

Cited by 6 publications

(2 citation statements)

References 45 publications

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“…Here we counted the parasitism rate of each fig and then ranked it in number distribution to see how efficiently “ Apocrypta pedunculosa” utilized the figs. Furthermore, to evaluate the exact relationship between the parasitoid and the pollinator, it is necessary to categorize which type of functional response “ Apocrypta pedunculosa” exhibits in its symbiotic system because functional response not only describes the relationship between the predator (or parasitoid) number and prey density but also indicates the ability of a natural enemy to limit a pest to a low threshold as biocontrol [ 53 , 54 , 58 , 59 ]. Since three general types of functional response were known as their distinct relationships (linear, curve with a saturating limit.…”

Section: Methodsmentioning

confidence: 99%

Parasitism Features of a Fig Wasp of Genus Apocrypta (Pteromalidae: Pteromalinae) Associated with a Host Belonging to Ficus Subgenus Ficus

Chou

Bain

Chantarasuwan³

et al. 2023

Insects

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Non-pollinating fig wasps (NPFWs), particularly long-ovipositored Sycoryctina wasps, exhibit a high species specificity and exert complex ecological effects on the obligate mutualism between the plant genus Ficus and pollinating fig wasps. Apocrypta is a genus of NPFWs that mostly interacts with the Ficus species under the subgenus Sycomorus, and the symbiosis case between Apocrypta and F. pedunculosa var. mearnsii, a Ficus species under subgenus Ficus, is unique. As fig’s internal environments and the wasp communities are distinct between the two subgenera, we addressed the following two questions: (1) Are the parasitism features of the Apocrypta wasp associated with F. pedunculosa var. mearnsii different from those of other congeneric species? (2) Is this Apocrypta species an efficient wasp that lives in its unique host? Our observation revealed that this wasp is an endoparasitic idiobiont parasitoid, as most congeneric species are, but developed a relatively long ovipositor. Furthermore, the relationships of the parasitism rate versus the pollinator number, the fig wall, and the sex ratio of the pollinator, respectively, showed that it possessed a higher parasitism ability than that of other congeners. However, its parasitism rate was low, and thus it was not an efficient wasp in its habitat. This difference between parasitism ability and parasitism rate might be a consequence of its oviposition strategy and the severe habitat conditions. These findings may also provide insights into the mechanism to maintain the interaction between the fig tree and the fig wasp community.

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Section: Methodsmentioning

confidence: 99%

Parasitism Features of a Fig Wasp of Genus Apocrypta (Pteromalidae: Pteromalinae) Associated with a Host Belonging to Ficus Subgenus Ficus

Chou

Bain

Chantarasuwan³

et al. 2023

Insects

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“…Peristenus spretus Chen et van Achterberg (Hymenoptera: Braconidae) is a key solitary koinobiont endoparasitoid native to China, with a distribution range of 23-39 • N [20,21]. When P. spretus was released in field cages at the rate of one female parasitoid per 50 A. lucorum nymphs, the parasitism rate reached 77.8% [22]. The foraging behavior of natural enemies can be regulated by olfactory cues, such as the odor produced by flowers and vegetative plant parts [2,23].…”

Section: Introductionmentioning

confidence: 99%

Buckwheat Flower Volatiles Attract Peristenus spretus and Enhance Its Field-Level Parasitism of Apolygus lucorum

Xia

Zhang

Williams

et al. 2023

Plants

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Volatile compounds play indispensable roles in the interactions among host plants, herbivores and natural enemies. Previous studies showed that the addition of buckwheat strips in cotton fields could attract Peristenus spretus, the dominant parasitoid of Apolygus lucorum, and enhance its parasitic activity. Through the combined analysis of Y-tube olfactometer, solid-phase microextraction (SPME), gas chromatography-mass spectrometer (GC-MS) and electroantennography (EAG), we found that male and female P. spretus responded to compounds present in buckwheat flowers. The five major components of buckwheat flowers, cis-3-hexenyl acetate (Z3HA), 4-methylanisole, 4-oxoisophorone, p-methylphenol and 2-ethylhexyl salicylate, all had a significant attraction to P. spretus adults and led to positive electroantennogram responses, especially for 10 mg/mL 4-oxoisophorone, indicating the components played a key role in the selection behavior of P. spretus to buckwheat flowers. Additionally, field trials showed that the five volatiles could significantly increase the parasitism by P. spretus. Our study screened the key active components of buckwheat flower volatiles that have an attractive effect on P. spretus, revealing its behavioral selection mechanism and emphasizing the important role of plant volatiles on host selection and parasitism of parasitic wasps, providing a theoretical basis for the development of attractants for P. spretus and the reduction of pesticides in the field to promote conservation biological control (CBC) of A. lucorum.

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Life history and behavior of Tamarixia triozae parasitizing the tomato-potato psyllid, Bactericera cockerelli

Chen

Zhou

et al. 2023

Biological Control

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Parasitism efficiency and progeny fitness of Peristenus spretus Chen et van Achterberg vary with nymphal instar of host, Apolygus lucorum (Meyer-Dür)

Cited by 6 publications

References 45 publications

Parasitism Features of a Fig Wasp of Genus Apocrypta (Pteromalidae: Pteromalinae) Associated with a Host Belonging to Ficus Subgenus Ficus

Parasitism Features of a Fig Wasp of Genus Apocrypta (Pteromalidae: Pteromalinae) Associated with a Host Belonging to Ficus Subgenus Ficus

Buckwheat Flower Volatiles Attract Peristenus spretus and Enhance Its Field-Level Parasitism of Apolygus lucorum

Life history and behavior of Tamarixia triozae parasitizing the tomato-potato psyllid, Bactericera cockerelli

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