Host plant water deficit stress impairs reproduction and development of the galling fly (Parafreutreta regalis), a biological control agent of Cape-ivy (Delairea odorata)

Portman, Scott L.; Cruz, Kyra E. Santa; Moran, Patrick

doi:10.1016/j.biocontrol.2021.104555

Cited by 7 publications

(3 citation statements)

References 64 publications

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“…The Argentinian green roofs were all relatively new, with an average age of about 3 years since construction, which may have limited their biodiversity. However, in Portland, a seasonal drought occurred during our sampling period, and parasitoid wasp populations tend to decrease under drought conditions (Aslam et al, 2013;Portman et al, 2021). This is particularly relevant for CWW, which received no supplementary irrigation (Table 1).…”

Section: Parasitoids and Urbanizationmentioning

confidence: 97%

Urban green roofs can support a diversity of parasitoid wasps

Diethelm

Masta

2022

Front. Ecol. Evol.

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Green roofs are often installed atop buildings to provide ecological services such as mitigating storm water runoff and cooling air within urban heat islands. We found that green roofs in Portland, Oregon, also can support biodiversity, including a diverse assemblage of parasitoid wasps, with 20 morphospecies from 10 families present on the four roofs we surveyed. The roofs with greater plant diversity and structural complexity harbored comparatively more parasitoid morphospecies than the structurally simpler Sedum-dominated roofs. The oldest green roof supported much greater diversity than the younger roofs, including a comparably planted roof three times its size. Parasitoid wasps from the Hymenopteran families we found are high-trophic-level organisms known to feed on a variety of arthropods, including many insects commonly considered to be pests in urban areas. We suggest that green roofs have the potential to provide an often-overlooked ecological service by supporting parasitoid wasps that can act as natural biological control agents.

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Section: Parasitoids and Urbanizationmentioning

confidence: 97%

Urban green roofs can support a diversity of parasitoid wasps

Diethelm

Masta

2022

Front. Ecol. Evol.

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“…On the other hand, other insects such as the green‐veined white butterfly ( Pieris napi ) prefer to oviposit on water‐stressed plants rather than well‐watered ones, which might be because of richer nutrients in water‐stressed host plants that provide better survival chance and other developmental benefits for their offspring (Bauerfeind & Fischer, 2013). Such inconsistencies may be related to a combination of multiple factors, such as insect mouth types, host plant species and environmental conditions (Portman et al, 2021; Rahman et al, 2019). It is clear that, however, insects in either case are utilizing some kind of olfactory cues that are mediated by water stress level to optimize nutrients that they and their offspring might obtain from their host plants.…”

Section: Discussionmentioning

confidence: 99%

Effects of water stress on plant volatile emission and insect oviposition preference in an agroecosystem

Sun

Zhu

Sui

et al. 2023

Agri and Forest Entomology

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1. Drought has become more common and severe in many parts of the world due to climate change. The effect of water stress on insect oviposition preference that is key determinant for their fitness has received less attention.2. Here, we examined how water stress may affect oviposition selection of Ostrinia furnacalis for maize plants in the greenhouse, and tested difference in volatile compounds emitted from treated maize, and electronantennogram and bioassay responses of O. furnacalis to the volatile profiles in maize plants.3. Ostrinia furnacalis were more prone to lay eggs on the well-watered maize. Most plant volatile compounds differed significantly among the three water treatments, including increased emissions of β-caryophyllene, (E)-2-hexenal, and linalool, and decreased emission of (Z)-3-hexen-1-ol when subjected to increasing intensity of drought. Varied volatile profiles of maize may drive oviposition decision of O. furnacalis,because O. furnacalis showed a clear oviposition preference for (Z)-3-hexen-1-ol, while not for β-caryophyllene, (E)-2-hexenal, and linalool, at the concentration of 1000 ppm.5. This study advances understanding of drought effects on plant-insect interactions through volatile profiles. Our finding calls for attention to oviposition selection for insect pest management in agricultural settings, especially in regions under changing precipitation patterns.

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“…), in riparian, forest, and scrubland habitats in California. In greenhouse tests, P. regalis produced 52% fewer galls and 60% fewer adult progeny per gall on water deficit–stressed versus unstressed plants, and the life cycle required 10 additional d (Portman et al 2021). Development time of the wasp Tetramesa romana (another shoot tip-galler) was 5 to 7 d longer on water-stressed giant reed ( Arundo donax L.) (Moran 2015).…”

Section: Present—ars Weed Science Researchmentioning

confidence: 99%

Agricultural Research Service Weed Science Research: Past, Present, and Future

Young¹,

Anderson²,

Baerson

et al. 2023

Weed Sci

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The U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS) has been a leader in weed science research covering topics ranging from the development and use of integrated weed management (IWM) tactics to basic mechanistic studies, including biotic resistance of desirable plant communities and herbicide resistance. ARS weed scientists have worked in agricultural and natural ecosystems, including agronomic and horticultural crops, pastures, forests, wild lands, aquatic habitats, wetlands, and riparian areas. Through strong partnerships with academia, state agencies, private industry, and numerous federal programs, ARS weed scientists have made contributions to discoveries in the newest fields of robotics and genetics, as well as the traditional and fundamental subjects of weed–crop competition and physiology and integration of weed control tactics and practices. Weed science at ARS is often overshadowed by other research topics; thus, few are aware of the long history of ARS weed science and its important contributions. This review is the result of a symposium held at the Weed Science Society of America’s 62nd Annual Meeting in 2022 that included 10 separate presentations in a virtual Weed Science Webinar Series. The overarching themes of management tactics (IWM, biological control, and automation), basic mechanisms (competition, invasive plant genetics, and herbicide resistance), and ecosystem impacts (invasive plant spread, climate change, conservation, and restoration) represent core ARS weed science research that is dynamic and efficacious and has been a significant component of the agency’s national and international efforts. This review highlights current studies and future directions that exemplify the science and collaborative relationships both within and outside ARS. Given the constraints of weeds and invasive plants on all aspects of food, feed, and fiber systems, there is an acknowledged need to face new challenges, including agriculture and natural resources sustainability, economic resilience and reliability, and societal health and well-being.

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Host plant water deficit stress impairs reproduction and development of the galling fly (Parafreutreta regalis), a biological control agent of Cape-ivy (Delairea odorata)

Cited by 7 publications

References 64 publications

Urban green roofs can support a diversity of parasitoid wasps

Urban green roofs can support a diversity of parasitoid wasps

Effects of water stress on plant volatile emission and insect oviposition preference in an agroecosystem

Agricultural Research Service Weed Science Research: Past, Present, and Future

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