Factors influencing the dispersal of a native parasitoid, Phasgonophora sulcata, attacking the emerald ash borer: implications for biological control

Gaudon, Justin M.; Allison, Jeremy D.; Smith, Sandy M.

doi:10.1007/s10526-018-9900-x

Cited by 9 publications

(6 citation statements)

References 35 publications

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“…Anaphes listronoti tendency to leave the host patch without exploiting it was significantly affected by temperature. In parasitoids, warm temperatures are usually associated with higher dispersal through increase in walking and flying capacities [36][37][38][39]. However, here we report the highest patch departure rates at the highest and the lowest temperatures tested.…”

Section: Discussioncontrasting

confidence: 58%

The effect of temperature on host patch exploitation by an egg parasitoid

et al. 2021

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The effect of temperature during host patch exploitation by parasitoids remains poorly understood, despite its importance on female reproductive success. Under laboratory conditions, we explored the behaviour of Anaphes listronoti, an egg parasitoid of the carrot weevil, Listronotus oregonensis, when foraging on a host patch at five temperatures. Temperature had a strong effect on the female tendency to exploit the patch: A. listronoti females parasitized more eggs at intermediate temperature (20 to 30°C) compared to those foraging at the extreme of the range (15.9°C and 32.8°C). However, there was no difference in offspring sex-ratio and clutch size between temperature treatments. Mechanisms of host acceptance within a patch differed between temperatures, especially at 32.8°C where females used ovipositor insertion rather than antennal contact to assess whether a host was already parasitized or not, suggesting that host handling and chemical cues detection were probably constrained at high temperature. Females spent less time on the host patch with increasing temperatures, but temperature had no effect on patch-leaving rules. Our results show that foraging A. listronoti females behave better than expected at sub-optimal temperatures, but worse than expected at supra-optimal temperatures. This could impair parasitoid performance under ongoing climate change.

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Section: Discussioncontrasting

confidence: 58%

The effect of temperature on host patch exploitation by an egg parasitoid

et al. 2021

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“…Both L. grallator and P. sulcata have been previously reported to parasitize FAB, as have 2 unidentified species of Eusandalum (Fenton 1942). Phasgonophora sulcata has been reported to parasitize other problematic buprestids such as 2-lined chestnut borer, Agrilus bilineatus (Weber) (Haack et al 1981) and emerald ash borer, Agrilus planipennis Fairmaire (Gouden et al 2018). Labena grallator is also a native parasitoid of wood boring beetles, but little is known about its ecology.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of winter cover crop methods for management of flatheaded appletree borer (Coleoptera: Buprestidae)

Gonzalez

Oliver

Perkovich

et al. 2023

Journal of Economic Entomology

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Winter cover crops grown at the base of red maples (Acer rubrum L.) can reduce flatheaded appletree borer (Chrysobothris femorata Olivier; Coleoptera: Buprestidae; FAB) damage by both physically blocking preferred oviposition sites and altering the environment around them. However, cover crop competition negatively affects tree growth. To investigate long-term cover crop effects, trees grown with cover crop for 2 yr were transitioned to a standard herbicide practice. After 4 yr, trees in the initial 2 yr cover crop plots were 1 yr behind in growth compared to trees grown in bare rows for all 4 yr. Most growth reduction occurred in the first year following transplant. Additional borer losses of 1–2% per year were observed in production years 3 and 4. A second experiment answered 2 questions: Can killing the cover crop once it reaches maximal height protect trees from borers while also reducing competition and thereby increase tree growth? and Do herbicide applications increase borer attacks? In this experiment, red maples were grown with (i) a standard herbicide program, (ii) a mulch mat, (iii) a cover crop that was killed early, or (iv) a cover crop allowed to senesce naturally. Evaluations after 2 yr indicated early kill of the cover crop was not enough to improve tree growth. Further, trees in the early kill cover crop treatment had the most FAB attacks. Cover crops allowed to senesce naturally reduced FAB attacks in both studies; however, more work is needed to minimize disparities in tree growth during the initial year post-transplant and determine the causal relationship between herbicide use and borer attacks.

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“…Parasitoids have been released for the management of emerald ash borers in the U.S.A. (Duan et al ). A promising candidate for controlling A. planipennis in North America is the native parasitoid Phasgonophora sulcata Westwood (Hymenoptera: Chalcididae) (Roscoe et al , ) and it has been suggested that P. sulcata should be released as pupae near the pest‐infested trees to achieve a better efficacy and potential biological control success (Gaudon et al ). Of the various natural enemies in our study area, A. denigrator was the dominant parasitoid from early May to mid‐October in both 2016 and 2017.…”

Section: Discussionmentioning

confidence: 99%

Life history and mortality factors ofAgrilus maliMatsumura (Coleoptera: Buprestidae) in wild apples in Northwestern China

Cui

Zhang

et al. 2019

Agri and Forest Entomology

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1 Wild apple Malus sieversii (Ledeb.) M. Roem. (Rosales: Rosaceae), the ancestor of cultivated apples, is widely distributed in Central Asia and is recognized as an important germplasm bank. Recently, the invasive pest Agrilus mali Matsumura (Coleoptera: Buprestidae), originally distributed in eastern Asia, has damaged endemic apple forests in the Yili River valley, Xinjiang, China, and has spread rapidly, infesting more than 80% of wild apple trees in this region. 2 We investigated the life-history traits and native natural enemies in the recently invaded range during 2016 and 2017. Agrilus mali has a univoltine life cycle and overwinters as young larvae in galleries in the cambium. Adults emerged from early June to mid-August and their density peaked in mid-July. 3 Several native natural enemies were identified from Agrilus mali larvae, including Atanycolus denigrator (L.) (Hymenoptera: Braconidae), the mite Pyemotes moseri Yu et Liang (Acari: Pyemotidae) and fungal entomopathogens. 4 Combined, these natural enemies were responsible for mortality rates ranging from 20% to 80% during the summer and autumn. The most abundant and important natural enemy was A. denigrator, which was responsible for up to 15% mortality of A. mali. 5 The results of the present study suggest that augmentation and conservation of A.denigrator and P. moseri should be considered with respect to biological control against this devastating pest.

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Factors influencing the dispersal of a native parasitoid, Phasgonophora sulcata, attacking the emerald ash borer: implications for biological control

Cited by 9 publications

References 35 publications

The effect of temperature on host patch exploitation by an egg parasitoid

The effect of temperature on host patch exploitation by an egg parasitoid

Evaluation of winter cover crop methods for management of flatheaded appletree borer (Coleoptera: Buprestidae)

Life history and mortality factors ofAgrilus maliMatsumura (Coleoptera: Buprestidae) in wild apples in Northwestern China

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