The effects of prey distribution and digestion on functional response of Harmonia axyridis (Coleoptera: Coccinellidae)

Feng, Yi; Zhou, Zhao-Xu; An, Meng-Ru; Yu, Xing‐Lin; Liu, Tong‐Xian

doi:10.1016/j.biocontrol.2018.04.009

Cited by 21 publications

(20 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, we found that both the killed rates of single H. axyridis and A. gifuensis were affected by prey distribution. Our results are similar to that of Feng et al [44]. Single H. axyridis or A. gifuensis exhibited higher functional response curves in the aggregate treatment than in the uniform treatment at aphid densities between 40-180 or 70-170, respectively.…”

Section: Discussionsupporting

confidence: 92%

“…However, when H. axyridis or A. gifuensis are foraging in patches with prey uniformly distributed, they may move more frequently between patches and spend more time in their searching process, and thus decrease aphid predation/parasitism. However, the majority of insect predators are digestion-limited, and the digestion process could affect their foraging efficiency [44]. For H. axyridis, this means that they digest prey slower than they handle them.…”

Section: Discussionmentioning

confidence: 99%

“…These results differ from our initial hypothesis. Previous studies found that predators and parasitoids may reveal area-restricted foraging behavior in high prey quality patches [26,33,44], which may increase the antagonistic and intraguild interaction strength between H. axyridis and A. gifuensis. In our experiment, when H. axyridis was present, there was a trend towards increasing the number of aphids parasitized by A. gifuensis in the uniform treatment compared with aggregate treatment, but the differences were not significant.…”

Section: Discussionmentioning

confidence: 99%

“…Studies have investigated the aphid parasitism/predatory capacity of A. gifuensis or H. axyridis in simple experimental arenas [ 41 , 42 , 43 ]. In addition, previous studies have evaluated the functional response of H. axyridis under different prey distributions [ 44 ], or with con- and heterspecific generalist predators in single plant [ 45 ]. However, to our knowledge, although there are observations for H. axyridis and A. gifuensis to overlap and compete for resources in various habitats where M. persicae was a pest [ 46 ], no previous studies have evaluated how prey distribution and heterospecific interactions could affect their predatory or parasitism efficiency when sharing the same prey species.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Prey Distribution and Heterospecific Interactions on the Functional Response of Harmonia axyridis and Aphidius gifuensis to Myzus persicae

Tang

Xia

et al. 2020

Insects

Self Cite

View full text Add to dashboard Cite

Natural enemy guilds normally forage for prey that is patchily distributed simultaneously. Previous studies have investigated the influence of conspecific interactions and prey distribution on the functional response of natural enemies. However, little is known about how prey distribution and heterospecific interactions between natural enemies could affect their foraging efficiency. We examined the effects of prey distribution (aggregate and uniform) and heterospecific interactions on the functional response of a predator, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) and a parasitoid, Aphidius gifuensis Ashmead (Hymenoptera: Braconidae) to the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae). Type II functional responses were observed in all experiments. Functional response curves of single H. axyridis or A. gifuensis were higher in the aggregate treatment than in the uniform treatment when aphid densities were between 40–180 or 70–170, respectively. When comparing between aggregate and uniform treatments with the heterospecific enemy occurrence, no differences were found in the parasitism efficiency of A. gifuensis, while H. axyridis consumed more aphids in the aggregate treatment than in the uniform treatment when aphid densities were between 50–230. The functional response of individual H. axyridis was not affected by A. gifuensis under two aphid distributions. However, the functional response of a single A. gifuensis and the treatment when A. gifuensis concurrently with H. axyridis overlapped in uniform treatment of above approximately 150 aphids. Our results indicate that the predation rate of H. axyridis was affected by aphid distribution, but was not affected by heterospecific interactions. The parasitism rate of A. gifuensis was affected by aphid distribution, and by heterospecific interactions in both the aggregate and uniform treatments. Thus, to optimize the management efficiency of M. persicae, the combined use of H. axyridis and A. gifuensis should be considered when M. persicae is nearly uniformly distributed under relatively high density.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Prey Distribution and Heterospecific Interactions on the Functional Response of Harmonia axyridis and Aphidius gifuensis to Myzus persicae

Tang

Xia

et al. 2020

Insects

Self Cite

View full text Add to dashboard Cite

show abstract

“…Chromaphis juglandicola and P. juglandis live on the undersides and the upper surface of the leaves in the field, respectively. Feng et al (2018) found that prey distribution could affect H. axyridis foraging under relative high prey densities. Spatial heterogeneity also play a role in predator-prey systems (Hauzy et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Effect of temperature on predation by Harmonia axyridis (Pall.) (Coleoptera: Coccinellidae) on the walnut aphids Chromaphis juglandicola Kalt. and Panaphis juglandis (Goeze)

Gao

Liu

Feng

et al. 2020

Egypt J Biol Pest Control

View full text Add to dashboard Cite

Background The walnut aphid species Chromaphis juglandicola Kalt. and Panaphis juglandis (Goeze) are destructive insect pests. Harmonia axyridis (Pall.) (Coleoptera: Coccinellidae) is the main predatory insect with a wide geographical distribution. The feeding behavior of the predator against the two different aphid species might influence bio-control efficacy in walnut orchards. Main body Functional response of H. axyridis to various densities of the two aphid species was examined under temperatures ranging from 15 to 30 °C. The results showed that functional responses of H. axyridis towards C. juglandicola or P. juglandis fitted well with the Holling-II equation within the range of 15–30 °C. A greater biomass of aphids was consumed when the temperature increased from 15 to 30 °C. The predation efficacy of H. axyridis against C. juglandicola was greater than against P. juglandis, and the searching efficiency of H. axyridis against C. juglandicola was more effective than against P. juglandis. Moreover, predation rates against both aphid species decreased with increasing the H. axyridis density. Conclusion This study showed that H. axyridis was an effective predator against the two walnut aphids. Increasing temperature (15–30 °C) increased prey consumption. Interference between individuals from increasing predator density had a negative impact on predation rate against the two aphid species.

show abstract

Effect of sublethal Spirotetramat on host locating and parasitic behavior of Encarsia formosa Gahan

Yang

Shang

et al. 2021

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND The use of chemical insecticides to control Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) is widespread, although it might exert a sublethal effect on its dominant parasitoid, Encarsia formosa Gahan (Hymenoptera: Aphelinidae). To investigate the sublethal effect of spirotetramat on E. formosa, we observed the ability of E. formosa to locate and handle the host, oviposit and preen after exposure to sublethal concentrations of spirotetramat. RESULTS After exposure to spirotetramat at LC50, the response time of E. formosa to the volatile reached 223.40 s and was significantly prolonged. Only 56.44% of the wasps were attracted by the volatile and the insect crawled the slowest among all of the treatments. The averages of oviposition posture adopted and host handled by each E. formosa in 1 h decreased significantly to 1.79 and 1.27, respectively. At the sublethal concentration of LC10, 94.59% of the wasps were attracted by the volatile and the insect crawled the fastest. The average of host handled by each E. formosa was 3.92, and the frequency of drumming while walking and drumming the host was 12.34 times per second and 12.30 times per second, respectively, demonstrating a significant acceleration in these abilities. CONCLUSION These findings demonstrate that spirotetramat induced hormesis in E. formosa on exposure to its LC10 concentration and accelerated its host locating, host handling and frequency of antennae drumming. These findings could assist in balancing the chemical and biological control of B. tabaci and enhancing the efficacy of E. formosa as a biocontrol agent. © 2021 Society of Chemical Industry.

show abstract

The effects of prey distribution and digestion on functional response of Harmonia axyridis (Coleoptera: Coccinellidae)

Cited by 21 publications

References 67 publications

Effects of Prey Distribution and Heterospecific Interactions on the Functional Response of Harmonia axyridis and Aphidius gifuensis to Myzus persicae

Effects of Prey Distribution and Heterospecific Interactions on the Functional Response of Harmonia axyridis and Aphidius gifuensis to Myzus persicae

Effect of temperature on predation by Harmonia axyridis (Pall.) (Coleoptera: Coccinellidae) on the walnut aphids Chromaphis juglandicola Kalt. and Panaphis juglandis (Goeze)

Effect of sublethal Spirotetramat on host locating and parasitic behavior of Encarsia formosa Gahan

Contact Info

Product

Resources

About