Mixed release of two parasitoids and a polyphagous ladybird as a potential strategy to control the tobacco whitefly Bemisia tabaci

Tan, Xiaoling; Hu, Nana; Zhang, Fan; Ramírez-Romero, Ricardo; Desneux, Nicolas; Wang, Su; Ge, Feng

doi:10.1038/srep28245

Cited by 24 publications

(22 citation statements)

References 64 publications

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“…We noted the lowest rates of reproduction of T. elegans when parasitoids and predators were released together. This is not in agreement with a greenhouse study of the effects of mixed releases of natural enemies of Bemisia tabaci (Gennadius)i.e., two parasitoid species and a ladybirdon predation rates and parasitoid performance and emergence: parasitoid reproduction was higher when parasitoids and predator were released simultaneously (Tan et al, 2016).…”

Section: Discussionmentioning

confidence: 98%

Predator‐parasitoid‐host interaction: biological control of Rhyzopertha dominica and Sitophilus oryzae by a combination of Xylocoris flavipes and Theocolax elegans in stored cereals

Adarkwah

Obeng‐Ofori

Opuni‐Frimpong

et al. 2019

Entomologia Exp Applicata

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Post‐harvest management constraints are economically significant in Africa for a broad range of commodities, resulting in a substantial negative impact on food security and livelihoods. Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) coexists with Sitophilus oryzae (L.) (Coleoptera: Dryophthoridae) – they infest stored cereal grains, especially in sub‐Saharan Africa, and cause significant losses in storage. Laboratory studies were carried out to determine the efficacy of Xylocoris flavipes (Reuter) (Hemiptera: Anthocoridae) and Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), alone or in combination, in suppressing populations of R. dominica and S. oryzae in stored rice and wheat grains. The weight loss and moisture of the infested grains were assessed, for the various combinations of the two pest insects and the two natural enemies. In rice there was a synergistic effect of the combined release of T. elegans and X. flavipes against both R. dominica and S. oryzae compared to the effect of one natural enemy alone. With the combined release, only 2% F1 progeny of the pest beetles emerged compared to the untreated control (100%), whereas 3.5 and 6% emerged when X. flavipes and T. elegans, respectively, were released alone. When the two natural enemies were released in combination, 0.4% R. dominica F1 progeny emerged, compared to 1.6% with X. flavipes or T. elegans alone. In the combined release only 0.3% S. oryzae F1 progeny emerged, whereas 65% emerged with X. flavipes alone and 41% with T. elegans alone. No synergistic effect of the combined release of the two natural enemies was detected in wheat. In stored rice, the lowest percentage of weight loss (44%) was found when both natural enemies and both beetle species were present. We conclude that the combination of the predator and the parasitoid should be recommended when R. domininca and S. oryzae coexist and feed on stored cereals, especially rice.

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Section: Discussionmentioning

confidence: 98%

Predator‐parasitoid‐host interaction: biological control of Rhyzopertha dominica and Sitophilus oryzae by a combination of Xylocoris flavipes and Theocolax elegans in stored cereals

Adarkwah

Obeng‐Ofori

Opuni‐Frimpong

et al. 2019

Entomologia Exp Applicata

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“…The performance of Encarsia formosa Gahan was affected by its host species within the cryptic B. tabaci species complex (Dai et al 2014;He Z et al 2017). The mixed species release of parasitoids E. formosa and Encarsia sophia (Girault & Dodd) significantly increased the parasitism rate on B. tabaci Tan et al 2016). It is also showed that different combinations of natural enemies influence their potential efficiency as biocontrol agents.…”

Section: Biological Control Of the Major Pests Of Vegetable Cropsmentioning

confidence: 99%

“…It is also showed that different combinations of natural enemies influence their potential efficiency as biocontrol agents. The combination release of E. formosa, E. sophia and a predatory ladybird Harmonia axyridis (Pallas) resulted in higher parasitizition and significant reduction of the adult parasitoid emergence (Tan et al 2016).…”

Section: Biological Control Of the Major Pests Of Vegetable Cropsmentioning

confidence: 99%

“…Two commercial companies, Beijing Quentian™ and Hengshui Tianyi™ have established a standardized mass-rearing pipeline to produce E. formosa for commercial use since 2004 (Yang N W et al 2014). One recent study on mixed-species release of two Encarsia parasitoids and a polyphagous ladybird H. axyridis to suppress whitefly outbreaks provides a useful case study for biocontrol because they facilitate exploring scenarios with combinations of natural enemy species (Tan et al 2016). Another example is the field experiments on releasing the endoparasitoid Peristenus spretus Chen & van Achterberg for controlling the green mirid bug, Apolygus lucorum Meyer-Dür in jujube orchards.…”

Section: Mass-rearing and Field Release Of Parasitoid Waspsmentioning

confidence: 99%

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Parasitoid wasps as effective biological control agents

WANG

Liu

Shi

et al. 2019

Journal of Integrative Agriculture

116

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Biological control (biocontrol) is a safe, sustainable approach that takes advantage of natural enemies such as predators, parasitic insects or pathogens to manage pests in agroecosystems. Parasitoid wasps, a very large evolutionary group of hymenopteran insects, are well-known biological control agents for arthropod pests in agricultural and forest ecosystems. Here, we summarize the recent progress on the application of parasitoid wasps in biocontrol in China for the last five years. These include species diversity of parasitoid wasps, identification of dominant parasitoid wasps associated with insect pests and biocontrol practices (three types of biological control, i.e., classical, augmentative and conservation biological control) in several Chinese agroecosystems. We then treat different mass-rearing and release technologies and the commercialization of several parasitoid wasp species. We also summarize other work that may have a potential use in biocontrol, including the effect of plant volatiles on parasitoids and recent advance in the molecular mechanisms underlying the host regulation by parasitoid wasps. Future research area and applied perspectives are also discussed, noting that advances in biocontrol technologies in Chinese agriculture informs research at the global level.

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“…The harlequin ladybird, Harmonia axyridis (Coleoptera: Coccinellidae) is an important predator of many pests, and is also one of the most effective ways to control aphids [1][2][3]. Therefore, it is widely used as an important biological control insect of pests in the global agricultural field.…”

Section: Introductionmentioning

confidence: 99%

Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering

Zeng

Wang

et al. 2020

PLoS ONE

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Harmonia axyridis is a major bio-control agent of pests in agriculture and forest ecosystems. It is also a globally important invasive insect species. To test whether dark elytra colour is associated with greater cold hardiness, we compared the survival rate of prolonged cold exposure in both yellow and black colour morphs of female and male H. axyridis. We determined the trehalose and glycogen content, trehalase activity, and the dynamics of genes associated with the trehalose metabolic pathway. Yellow forms predominated before winter began, however black forms increased from 11.15 to 30.46% after overwintering. There was no significant difference in trehalose content between the females and males during overwintering. Glycogen content in over-wintering yellow females and black males increased significantly, while it decreased in black females. Soluble trehalase activity increased significantly in all the insects except black females. Membrane-bound trehalase activity increased in black males, and decreased in black females. Trehalose and glycogen content and trehalase activity were regulated by differential expression of TRE and TPS genes. Female beetles weighed more than males and survived in low temperatures for longer periods of time, regardless of elytra colour, suggesting that mass is a stronger predictor of overwintering survival rather than colour morph. Our results provide a guide for comparing cold resistance in insects and a theoretical basis for cold storage of H. axyridis for use as natural enemies of pests in biological control programs.

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Mixed release of two parasitoids and a polyphagous ladybird as a potential strategy to control the tobacco whitefly Bemisia tabaci

Cited by 24 publications

References 64 publications

Predator‐parasitoid‐host interaction: biological control of Rhyzopertha dominica and Sitophilus oryzae by a combination of Xylocoris flavipes and Theocolax elegans in stored cereals

Predator‐parasitoid‐host interaction: biological control of Rhyzopertha dominica and Sitophilus oryzae by a combination of Xylocoris flavipes and Theocolax elegans in stored cereals

Parasitoid wasps as effective biological control agents

Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering

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