Spatial Distribution of the Larval Populations of the Japanese Beetle (Coleoptera: Scarabaeidae) in Turfgrass

Ng, Yuen-Shaung; Trout, Richard; Ahmad, Sami

doi:10.1093/jee/76.1.26

Cited by 11 publications

(3 citation statements)

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“…Larval populations are typically aggregated (34). Distributions of all instars in turf were best fitted by the negative binomial distribution (135). Extensive sampling of fairways on one central New York golf course suggested that patches with perennially high JB grub densities tended to occur near plants that attracted adult feeding aggregations, whereas low-density patches were correlated with high soil organic matter (35).…”

Section: Sampling Spatial Distribution Damage Thresholdsmentioning

confidence: 99%

Biology and Management of the Japanese Beetle

Potter

Held

2002

Annu. Rev. Entomol.

277

323

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The Japanese beetle, Popillia japonica Newman, an introduced scarab, has become the most widespread and destructive insect pest of turf, landscapes, and nursery crops in the eastern United States. It also damages many fruit, garden, and field crops. This review emphasizes recent research on the beetle's biology and management. Adults feed on leaves, flowers, or fruits of more than 300 plant species. Adaptations mediating their host finding, dietary range, mating, and oviposition are discussed. We also address abiotic and biotic factors affecting population dynamics of the root-feeding larvae. Japanese beetle grubs are widely controlled with preventive soil insecticides, but options for remedial control of adults and larvae presently are limited. Advances in understanding host plant resistance, entomopathogens, and other biorational approaches may provide more options for integrated management. Despite ongoing regulatory efforts, the Japanese beetle remains a threat as an invasive species.

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Section: Sampling Spatial Distribution Damage Thresholdsmentioning

confidence: 99%

Biology and Management of the Japanese Beetle

Potter

Held

2002

Annu. Rev. Entomol.

277

323

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“…These findings will have a great bearing on the development of sampling techniques for the cricket. Dispersion indices that are least affected by changes in sample mean density are ideal for spatial dispersion analysis (Yuen-Shaung et al, 1983). The mean crowding of Iwao's regression and Log S 2 of Taylor's Power Law were very highly correlated to sample mean density in this study (Table 2) and may, especially for Iwao's regression, have affected the indice's sensitivity in identifying aggregation at low mean densities.…”

Section: Resultsmentioning

confidence: 61%

Spatial dispersion patterns of the armoured ground cricket, Acanthoplus speiseri Brancsik at the university of zambia campus (Orthoptera: Tettigoniidae, Hetrodinae)

Mbata

1991

Int. J. Trop. Insect Sci.

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Spatial dispersion patterns of A canthoplus speiseri were investigated. Four indices of dispersion derived from either Iwao's measure or Taylor's Power Law were used to study spatial dispersion patterns. All indices were in agreement in identifying aggregated dispersion patterns in the cricket populations sampled. Iwao's index of basic contagion revealed that individual crickets formed the basic components in the aggregated dispersion of the populations. Resume-Les formes de dispersion spatiale A'Acanthoplus speiseri Brancsik etaient etudiees.Quatre indices de dispersion obtenues ou Men avec la methode d'lwao ou avec la loi de puissance de Taylor, etaient employees pour analyser la dispersion spatiale. Toutes les indices Etaient en accord dans l'identification d'un mode de dispersion en aggregation des populations des cigales studiees. L'indice de contact fondamental d'lwao a revele que les individus formaient les composees fondamentales dans la dispersion en aggregation de la population des cigales.

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“…Guppy and Harcourt (1970, 1973) evaluated spatial patterns of Phyllophaga fusca and P. anxia in a permanent pasture and developed a sampling plan to study their population dynamics. Ng et al (1983) characterized the spatial distribution of Japanese beetle ( Popillia japonica Newman) larvae. However, distribution of larvae of various Phyllophaga species within the same stand of turfgrass is not known.…”

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confidence: 99%

Spatial and Temporal Distribution of Phyllophaga spp. Infesting Bermudagrass Stands in Oklahoma

Graf

Rebek

Royer

et al. 2017

Intl Turfgrass Soc Res J

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Larvae of Phyllophaga spp. (Coleoptera: Scarabaeidae) are important direct and indirect turfgrass pests in the southern United States. Confirming the presence of these larvae is an important integrated pest management practice in turf production systems and determines the need for treatment. However, several different species (e.g., P. crinita, P. submucida, and P. crassissima) are known to occur within the same turfgrass stand, and each species has a different oviposition period. The objective of this study was to determine the spatial and temporal distribution of Phyllophaga spp. in intensely managed bermudagrass. During spring through summer of 2009, larvae were collected after harvesting bermudagrass turf from two sod farms in Oklahoma. The location of each grub was determined using global positioning system tracking. Identification of larvae was based on polymerase chain reaction amplification and sequencing of the cytochrome c oxidase I gene. Species spatial and temporal distribution patterns were analyzed by detrended correspondence analysis using CANOCO 5.04. Seven species of Phyllophaga were collected, and each study site contained at least one species that was not found at the other. Detrended correspondence analysis resulted in low β diversity values. Beta diversity reflects how far apart species are in the gradient of species composition. The low β diversity scores obtained in this study show that different species of Phyllophaga were present in no recognizable pattern of temporal or spatial distribution.

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Spatial Distribution of the Larval Populations of the Japanese Beetle (Coleoptera: Scarabaeidae) in Turfgrass

Cited by 11 publications

References 0 publications

Biology and Management of the Japanese Beetle

Biology and Management of the Japanese Beetle

Spatial dispersion patterns of the armoured ground cricket, Acanthoplus speiseri Brancsik at the university of zambia campus (Orthoptera: Tettigoniidae, Hetrodinae)

Spatial and Temporal Distribution of Phyllophaga spp. Infesting Bermudagrass Stands in Oklahoma

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