Behavioural responses of two-spotted spider mites induced by predator-borne and prey-borne cues

Gyuris, Enikő; Szép, Erna; Kontschán, Jenő; Hettyey, Attila; Tóth, Zoltán

doi:10.1016/j.beproc.2017.09.002

Cited by 6 publications

(9 citation statements)

References 80 publications

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“…However, this approach is a widely used method for evaluation of mite behavior in experimental arenas (e.g. Guyris et al, 2017;Wu et al, 2018). Other results may have been obtained using intact plants, thus further studies using P. persimilis on fungal inoculated and uninoculated plants are needed to evaluate effects at spider mite population level and on predator fitness to conclude on compatibility between seed inoculation of entomopathogenic fungi and release of P. persimilis for combined spider mite control.…”

Section: Discussionmentioning

confidence: 99%

Effects of bean seed treatment by the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana on plant growth, spider mite populations and behavior of predatory mites

et al. 2019

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The fungal genera Metarhizium and Beauveria are considered as both entomopathogens and endophytes; they are able to colonize a wide variety of plants and can cause increased plant growth and protect plants against pests. In view of the need for new biological methods for plant protection and how promising and little studied candidates entomopathogens are, the aim of this research was to evaluate the potential of two isolates of Metarhizium robertsii (ESALQ 1622) and Beauveria bassiana (ESALQ 3375) to suppress spider mite Tetranychus urticae population growth and ability to promote growth of bean plants Phaseolus vulgaris after seed treatment, in order to develop an innovative strategy by using these fungi as inoculants to improve both spider mites control and plant growth and yield. In addition, behavioral responses and predation rates of the predatory mite Phytoseiulus persimilis towards fungal treated plants and spider mites from these plants were also evaluated in leaf disc assays to assess potential conflicting effects of the fungal inoculations on overall pest control at higher trophic levels. Seed inoculations by the two isolates of M. robertsii and B. bassiana were done individually and in combinations to evaluate potential benefits of co-inoculants. The results showed a significant reduction in T. urticae populations and improved plant development when inoculated with M. robertsii and B. bassiana individually and in combination. The predatory mite P. persimilis showed no difference in the predation rate on T. urticae from treated and untreated plants even though the predators were most likely to feed on spider mites from fungal treated plants during the first half of the trial, and on spider mites from control plants during the remainder of the trial. Overall, the two fungal isolates have potential as seed inoculants to suppress spider mites in bean and the strategy appears to have no conflict with use of predatory mites. Co-inoculation of both fungal isolates showed no additional benefits compared to single isolate applications under the given test conditions.

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Section: Discussionmentioning

confidence: 99%

Effects of bean seed treatment by the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana on plant growth, spider mite populations and behavior of predatory mites

et al. 2019

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“…[6][7][8][9][10][11][12][13][14][15][16][17][18] Buchanan et al 19 suggested that the risk cues affect both behavioral and physiological traits in prey but have stronger impacts on behavioral traits. For example, spider mites tend to stay away from the areas with predator cues, 20,21 aggregate more tightly in such areas, 22 change locomotion activity, 9 or shift their oviposition site from leaf surface to their webs. 23,24 Predation risk incurs trade-offs between risk avoidance and other life functions in prey, 25,26 altering their life-history traits, 13,16,23,[27][28][29][30][31][32] and reducing their fitness and population size.…”

Section: Introductionmentioning

confidence: 99%

“…5 Plant-feeding mites can detect predation risk through chemical cues from predators and killed conspecifics, and respond accordingly. [6][7][8][9][10][11][12][13][14][15][16][17][18] Buchanan et al 19 suggested that the risk cues affect both behavioral and physiological traits in prey but have stronger impacts on behavioral traits. For example, spider mites tend to stay away from the areas with predator cues, 20,21 aggregate more tightly in such areas, 22 change locomotion activity, 9 or shift their oviposition site from leaf surface to their webs.…”

Section: Introductionmentioning

confidence: 99%

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Predator‐ and killed prey‐induced fears bear significant cost to an invasive spider mite: Implications in pest management

Ristyadi

Wang

2022

Pest Management Science

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BACKGROUND The success of biological control using predators is normally assumed to be achieved through direct predation. Yet it is largely unknown how the predator‐ and killed prey‐induced stress to prey may contribute to biological control effectiveness. Here, we investigate variations in life‐history traits and offspring fitness of the spider mite Tetranychus ludeni in response to cues from the predatory mite Phytoseiulus persimilis and killed T. ludeni, providing knowledge for evaluation of the nonconsumptive contribution to the biological control of T. ludeni and for future development of novel spider mite control measures using these cues. RESULTS Cues from predators and killed prey shortened longevity by 23–25% and oviposition period by 35–40%, and reduced fecundity by 31–37% in T. ludeni females. These cues significantly reduced the intrinsic rate of increase (rm) and net population growth rate (R0), and extended time to double the population size (Dt). Predator cues significantly delayed lifetime production of daughters. Mothers exposed to predator cues laid significantly smaller eggs and their offspring developed significantly more slowly but these eggs had significantly higher hatch rate. CONCLUSION Predator‐ and killed prey‐induced fears significantly lower the fitness of T. ludeni, suggesting that these nonconsumptive effects can contribute to the effectiveness of biological control to a great extent. Our study provides critical information for evaluation of biological control effectiveness using predators and paves the way for identification of chemical odors from the predator and killed prey, and development of new materials and methods for the control of spider mite pests. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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“…These aggregation indices provide primary information for developing sampling programs geared at estimating population density. For T. evansi, among the drivers for group-formation and living (aggregation) is the aspect of strengthened anti-predator functions [24,25]. According to Dittmann and Schausberger (2017), anti-predator benefits of aggregation could arise from phenomena such as the dilution effect, encounter or avoidance effect, increased vigilance, cooperative defense, and predator confusion.…”

Section: Discussionmentioning

confidence: 99%

Within-plant distribution and binomial sequential sampling plan for Tetranychus evansi (Acari: Tetranychidae) in greenhouse tomato: implications for management.

2020

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The red spider mite, Tetranychus evansi is a critical pest of tomato in the tropics. Control of T. evansi has traditionally depended on acaricide treatments. However, it is only in a handful of crops where monitoring techniques for mites, using statistical methods, have been developed to help farmers decide when to spray. The objective of this study, therefore, was to develop a sampling plan that would help farmers increase accuracy, and reduce the labor and time needed to monitor T. evansi on tomato. The distribution of T. evansi within-plant was aggregated, and intermediate leaves (YFL) was the most appropriate sampling unit to evaluate the mite density. Analysis based on Taylor's Power Law showed an aggregated pattern of distribution of T. evansi, while assessment of the fitness of the binomial model indicated that a tally threshold of 5 mites per YFL provided the best fit. Consequently, binomial sequential sampling plans premised on three action thresholds (0.1, 0.2 and 0.3) were developed. The binomial sequential sampling plan for T. evansi developed in this study has the potential to significantly increase the chance for targeted acaricide applications. This judicious use of pesticides is especially crucial within the context of integrated pest management (IPM).

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Behavioural responses of two-spotted spider mites induced by predator-borne and prey-borne cues

Cited by 6 publications

References 80 publications

Effects of bean seed treatment by the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana on plant growth, spider mite populations and behavior of predatory mites

Effects of bean seed treatment by the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana on plant growth, spider mite populations and behavior of predatory mites

Predator‐ and killed prey‐induced fears bear significant cost to an invasive spider mite: Implications in pest management

Within-plant distribution and binomial sequential sampling plan for Tetranychus evansi (Acari: Tetranychidae) in greenhouse tomato: implications for management.

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