Ovipositional preferences and larval survival of annual bluegrass weevil, <scp>L</scp>istronotus maculicollis, on <scp>P</scp>oa annua and selected bentgrasses (<scp>A</scp>grostis spp.)

Kostromytska, Olga S.; Koppenhöfer, Albrecht M.

doi:10.1111/eea.12204

Cited by 15 publications

(15 citation statements)

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“…We hypothesized that ABW females would be under strong selection pressures to conform to a ‘preference‐performance’ ovipositional strategy, and oviposit in high‐quality turf areas ( P. annua patches devoid of conspecifics), as larvae are relatively immobile. Laboratory choice and no‐choice studies have indicated that P. annua is a better host than A. stolonifera , as larval fitness is significantly improved when developing on P. annua (Rothwell, ; Kostromytska & Koppenhöfer, ). The spatial associations between ABW stages and P. annua were positively correlated for the oldest stages (fifth instars, teneral adults) in both years in which analysis was possible.…”

Section: Discussionmentioning

confidence: 99%

“…Damage caused by ABW populations is most severe in turf stands with high percentages of annual bluegrass, Poa annua L. (Poaceae), although they are capable of developing in other turfgrasses such as bentgrasses [ Agrostis spp. (Poaceae)] (Kostromytska & Koppenhöfer, ). On the majority of golf courses in the epicenter of where damaging ABW populations are found (northern New Jersey, southeastern New York, and Connecticut – all USA), the short‐mown playing surfaces are composed of a mixture of P. annua and creeping bentgrass, Agrostis stolonifera L. Two biotypes of P. annua can be found on a golf course, which differ in their seasonality (Vargas & Turgeon, ).…”

Section: Introductionmentioning

confidence: 99%

“…In that study, adult movement and larval spatial patterns (at a coarse spatial scale) were not closely associated with P. annua spatial patterns, leading us to believe that a low mowing height of hosts was a more important criterion than turfgrass species for potential oviposition sites. However, subsequent electrophysiological (McGraw et al., ) and host preference studies (Kostromytska & Koppenhöfer, ) have provided strong support for the ability of ABW adults to detect and preferentially accept P. annua as a host.…”

Section: Introductionmentioning

confidence: 99%

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Spatial analysis of Listronotus maculicollis immature stages demonstrates strong associations with conspecifics and turfgrass damage but not with optimal hosts on golf course fairways

McGraw

Koppenhöfer

2015

Entomologia Exp Applicata

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For insects that develop on few hosts and/or have immobile immature stages, optimal oviposition theory suggests that females should seek high-quality hosts that maximize larval development and reduce competition from conspecifics. However, there is a growing amount of evidence that suggests female choice may often be at odds with their offspring's development. Listronotus maculicollis (Kirby) (Coleoptera: Curculionidae) is a serious pest of golf course turfgrass in eastern North America. The weevil develops on few hosts and demonstrates improved fitness traits when developing on Poa annua L. (Poaceae). However, previous population studies observed either weak or no correlations between the spatial dispersion of larval populations and P. annua in the field. In this study, populations on three golf course fairways were monitored over a 4-year period (2009-2012) to determine whether the lack of spatial associations between preferred hosts and immatures was a result of spatial scale or the density and distribution of conspecifics. Spatial Analysis by Distance IndicEs (SADIE) was used to characterize the spatial dispersion of populations of individual stages (larvae and pupae), P. annua, and turfgrass damage. Life stages were aggregated in each observation, independent of population density or the spatial dispersion of hosts. The distribution of consecutive and non-consecutive immature stages was found to be correlated in all years, suggesting that females do not avoid patches already occupied by conspecific eggs. Surprisingly, significant spatial associations were not found between larvae and P. annua when the host plant was relatively abundant. Hence, multiple mechanisms may drive L. maculicollis oviposition site-selection behavior, and a flexible strategy may allow the weevil to persist in areas where P. annua is not the dominant species. Future studies are required to determine what other factors (e.g., natural enemy-free space, egg or time limitations) influence oviposition behavior.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatial analysis of Listronotus maculicollis immature stages demonstrates strong associations with conspecifics and turfgrass damage but not with optimal hosts on golf course fairways

McGraw

Koppenhöfer

2015

Entomologia Exp Applicata

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“…unknown) stands are more tolerant to ABW larval feeding than mixed stands of P. annua and A. stolonifera (McGraw & Koppenhöfer, 2009). Moreover, in greenhouse pot studies and field microplot studies P. annua was more susceptible to ABW larval feeding than A. stolonifera ; variation in the susceptibility to ABW was also documented among bentgrass species and cultivars (Kostromytska & Koppenhöfer, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Poa annua is the preferred and most suitable host of ABW (Kostromytska & Koppenhöfer, 2014). Limited experimental evidence suggests that P. annua is more susceptible to ABW feeding if compared with other grasses.…”

Section: Introductionmentioning

confidence: 99%

Responses ofPoa annuaand three bentgrass species (Agrostisspp.) to adult and larval feeding of annual bluegrass weevil,Listronotus maculicollis(Coleoptera: Curculionidae)

Kostromytska

Koppenhöfer

2016

Bull. Entomol. Res.

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The annual bluegrass weevil (ABW), Listronotus maculicollis Kirby, is an economically important pest of short-cut turfgrass in Eastern North America. Wide spread insecticide resistance warrants the development of alternative management strategies for this pest. ABW damage typically occurs in areas with a high percentage of annual bluegrass, Poa annua L., the preferred ABW host. Damage to bentgrasses, Agrostis spp., is much rarer and usually less severe. To aid the implementation of host plant resistance as an alternative ABW management strategy we investigated the tolerance of three bentgrass species to ABW feeding. Responses of P. annua, creeping bentgrass, Agrostis stolonifera L., colonial bentgrass, Agrostis capillaris L., and velvet bentgrass, Agrostis canina L., to adult and larval feeding were compared in greenhouse experiments. Grass responses were measured as visual damage, dry weight of the grass stems and leaves, color, density and overall grass quality. To determine possible mechanisms of grass tolerance constitutive fiber and silicon content were also determined. The three bentgrass species tolerated 2-3 times higher numbers of ABW adults and larvae than P. annua before displaying any significant quality decrease. Creeping bentgrass had the lowest damage ratings. ABW infestation caused higher plant yield reduction in P. annua (up to 42%) than in bentgrasses. Observed differences among the grass species in fiber and silicon content in the plant tissue are unlikely to play a role in the resistance of bentgrasses to ABW. Our findings clearly show that A. stolonifera is the best grass species for the implementation of host plant resistance in ABW management.

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Reproductive phenology and feeding patterns of Listronotus maculicollis during spring emergence: Implications for spring management

et al. 2020

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The annual bluegrass weevil [Listronotus maculicollis (Kirby)] is a severe pest of golf course turf in North America. Most turf managers attempt to minimize larval damage by targeting adults with insecticides upon emergence from overwintering habitats in spring. Fluctuations in weather often create asynchronous emergence patterns that lead to inefficacious applications. We sought to describe L. maculicollis reproductive phenology to determine when mating and oviposition occur to better time insecticide applications. Dissections were performed on adults collected weekly from golf course fairways and tees between adult emergence and the end of the first generation over a 3‐yr period. Most females emerged with well‐developed reproductive systems, though <40% were mated. Fewer than 20% of males were mature upon emergence and required 5–8 wk after first emergence before all captures displayed mature reproductive systems. Few adults were found to have fed between emergence and adult peak, suggesting that systemic insecticides applied during the migration are not likely to be ingested. In caged oviposition studies, females survived up to 15 wk, with oviposition occurring as late as 14 wk. Average total fecundity ranged between 60 and 90 eggs per female with most oviposition occurring between the start of the experiment and 5 (2013) or 8 wk (2012). A strong correlation between growing degree days per week and eggs per female per week was detected over this period. Our findings suggest that insecticide applications targeting adults to reduce asynchronous larval development and damage should not be applied prior to peak emergence.

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Ovipositional preferences and larval survival of annual bluegrass weevil, Listronotus maculicollis, on Poa annua and selected bentgrasses (Agrostis spp.)

Cited by 15 publications

References 16 publications

Spatial analysis of Listronotus maculicollis immature stages demonstrates strong associations with conspecifics and turfgrass damage but not with optimal hosts on golf course fairways

Spatial analysis of Listronotus maculicollis immature stages demonstrates strong associations with conspecifics and turfgrass damage but not with optimal hosts on golf course fairways

Responses ofPoa annuaand three bentgrass species (Agrostisspp.) to adult and larval feeding of annual bluegrass weevil,Listronotus maculicollis(Coleoptera: Curculionidae)

Reproductive phenology and feeding patterns of Listronotus maculicollis during spring emergence: Implications for spring management

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