Predation by the rook,<i>Corvus frugilegus</i>L.,on larvae of the grass grub,<i>Costelytra zealandica</i>(White),in Hawke’s Bay, New Zealand

McLennan, J. A.; Macmillan, Bob

doi:10.1080/00288233.1983.10420964

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…In their search for invertebrates such as earthworms (Allolobophora spp.) and grass grub (Costelytra zealandica), they may damage pasture (McLennan & Macmillan 1983).…”

Section: Introductionmentioning

confidence: 99%

The effect of poisoning on the movement of rooksCorvus frugilegusL. in southern Hawke's Bay, New Zealand

Langham¹,

Porter²

1991

New Zealand Journal of Zoology

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The effect of poison bait at a rookery on the movement of rooks (Corvus frugilegus L.) was studied using marking and radiotelemetry at five rookeries in southern Hawke's Bay, New Zealand. In November 1987 and 1988, before poisoning, rooks were retrapped near rookeries other than those near where they were marked, showing that feeding areas overlapped. Birds marked in 1987 were located north and north-east of original rookeries in 1988. In spite of extensive searches throughout the study area, no southward movement was seen. Between July and November 1988, 12 marked rooks moved to rookeries in a south-east direction. Poisoning at the rookery in November 1988, using DRC-1339, killed 38 rooks, including 10 birds marked near that rookery and 4 marked near other rookeries. At least six marked birds and one with a transmitter survived, as well as three birds with transmitters released after the poisoning. These 10 rooks were seen at other rookeries in 1989, including 2 marked rooks that moved 3 km south-east. The surviving rook with a transmitter moved 4km south-west. A search of rookeries south of Dannevirke failed to reveal marked rooks, so there was insufficient evidence to suggest that poisoning was responsible for the recent southward extension of their range.

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“…In their search for invertebrates such as earthworms (Allolobophora spp.) and grass grub (Costelytra zealandica), they may damage pasture (McLennan & Macmillan 1983).…”

Section: Introductionmentioning

confidence: 99%

The effect of poisoning on the movement of rooksCorvus frugilegusL. in southern Hawke's Bay, New Zealand

Langham¹,

Porter²

1991

New Zealand Journal of Zoology

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Phosphorus fertiliser is associated with reduced grass grub (Costelytra giveni) fitness in Epichloë endophyte‐infected meadow fescue and perennial ryegrass

Hewitt,

Hofmann,

Ball

et al. 2024

Pest Management Science

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BACKGROUNDFertiliser applications are well‐established tools in pasture‐based agricultural landscapes. This study focuses on the impact of phosphorus (P) fertiliser on grass grub (Costelytra giveni), a major pasture pest. This research investigates the interplay between P, plant growth, and grass grub fitness in Epichloë endophyte‐infected perennial ryegrass (Epichloë sp. LpTG‐3 strain AR37) and meadow fescue infected with E. uncinata (strain MaxR; AR1017), alongside their endophyte‐free counterparts. In a glasshouse trial, plants were grown in P‐enriched soil with varying Olsen P levels (9, 18, 28 or 78 mg L−1), and grass grubs were introduced. Their survival and weight gain, and plant performance were measured. In a bioassay, grass grubs were placed in specimen vials with P‐enriched soils (Olsen P levels 9, 18, 28 and 78 mg L−1) and provided with identical plant material to assess their diet consumption and weight gain.RESULTSIn the glasshouse trial, results highlighted a notable decrease in the survival of grass grub on plants infected with MaxR endophyte, but not with AR37, as well as increasing soil Olsen P levels in both plant species. While grass grub decreased plant performance at the low Olsen P level (9 mg L−1), this effect diminished with increasing P. Likewise, results from the bioassay showed a decrease in diet consumption with increasing soil Olsen P levels. In both trials increasing Olsen P levels correlated with diminished grass grub performance, revealing a nuanced relationship between soil fertility and pest dynamics.CONCLUSIONThe study underscores the pivotal role of selected Epichloë endophyte–grass associations in mitigating grass grub damage across varying phosphorus levels. This study highlights the potential to integrate P applications for sustainable pest control against grass grub. Further field trials are required to validate these findings. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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The wintering ecology of the Rook Corvus frugilegus in Northern Kyushu, Japan

et al. 2022

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Predation by the rook,Corvus frugilegusL.,on larvae of the grass grub,Costelytra zealandica(White),in Hawke’s Bay, New Zealand

Cited by 4 publications

References 18 publications

The effect of poisoning on the movement of rooksCorvus frugilegusL. in southern Hawke's Bay, New Zealand

The effect of poisoning on the movement of rooksCorvus frugilegusL. in southern Hawke's Bay, New Zealand

Phosphorus fertiliser is associated with reduced grass grub (Costelytra giveni) fitness in Epichloë endophyte‐infected meadow fescue and perennial ryegrass

The wintering ecology of the Rook Corvus frugilegus in Northern Kyushu, Japan

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