Ecology of black beetle,<i>Heteronychus arator</i>(Coleoptera: Scarabaeidae) — influence of temperature on feeding, growth, and survival of the larvae

King, P. D.; Mercer, C. F.; Meekings, J.S.

doi:10.1080/03014223.1981.10427948

Cited by 24 publications

(24 citation statements)

References 10 publications

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“…This is similar to the E.C.I. of 19% for third-instar black beetle larvae feeding on carrot at 20 ~ (King et al, 1981), but considerably larger than the 6% found by Ridsdili for S. nigrolineata larvae feeding on carrot at the same temperature.…”

Section: Resultssupporting

confidence: 78%

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

King

Mercer

Meekings

1981

Entomologia Exp Applicata

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The consumption, utilization and growth of third‐instar larvae of black beetle, Heteronychus arator (F.) feeding on roots of ryegrass (Lolium perenne), paspalum (Paspalum ***dilatatum) and white clover (Trifolium repens) were studied. Consumption was greater on the grasses than on white clover when assessed by gravimetric methods, Larvae had a higher growth rate on the grasses. Utilization of the roots of the three species was similar indicating that poor growth on white clover is the result of low consumption probably induced by the presence of feeding deterrents in the roots. ZUSAMMENFASSUNG DIE OEKOLOGIE VON HETERONYCHUS ARATOR (COLEOPTERA, SCARABAEIDAE) EINFLUSS DER PFLANZENART AUF FUTTERAUFNAHME, FUTTER VER WERTUNG UND WACHSTUM DER LARVEN Die Futteraufnahme, die Futterverwertung und das Wachstum von Drittstadiumlarven von H. arator beim Fressen von Wurzeln von Paspalum dilatatum, Raygras (Lolium perenne) und Weissklee (Trifolium repens) wurden gravimetrisch gemessen. Der durchschnittliche Futterverzehrindex auf Gräsern war 0.65 mg/mg Larve/Woche verglichen mit 0.18 auf Weissklee. Die relative Wachstumsrate auf Paspalum und Raygras war 0.158 und 0.124 mg/mg Larve/Woche verglichen mit 0.043 auf Weissklee, was den geringen Verzehr an Weisskleewurzel widerspiegelt. Die Verwertung der gefressenen Wurzel war 22%, 18% und 24% für Paspalum, Raygras und Weissklee. Das Fehlen gesicherter Unterschiede in der Futterverwertung der drei Pflanzenarten deutet darauf hin, dass die geringe Wachstumsrate auf Weissklee bloss durch geringe Futteraufnahme verursacht ist. Es wurde gezeigt, dass in Weisskleewurzel Frasinhibitoren für H. arator vorhanden sind. Die erhaltenen Schätzungen für Futteraufnahme durch Scarabaeiden sind die besten Daten für wurzelfressende Arten und liefern eine Basis, um den Einfluss der Weidepflanzen auf H. arator Populationen zu verstehen.

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Section: Resultssupporting

confidence: 78%

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

King

Mercer

Meekings

1981

Entomologia Exp Applicata

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“…Both temperature and moisture are critical factors governing population change, with early larval instars being the most sensitive of the life stages to these factors. Cumulative thermal units above 15°C in spring are directly related to summer larval survival, while high soil moisture in spring and early summer adversely affect early stage larval survival (King et al 1981a(King et al , 1981b. Warm temperatures also accelerate larval development leading to early adult emergence which allows the beetles a longer period for accumulating fat before winter.…”

Section: Life Cycle and Biologymentioning

confidence: 99%

“…These authors also found that the pathogen had limited distribution and was much more prevalent in coastal areas. King et al (1981a) estimated the consumption index of third instar larvae at 20°C to be 0.135/mg of larval weight/day. Based on this, a 200 mg third instar larva in February would be consuming 27 mg of root per day, increasing to 54 mg/day as they reach maturity.…”

Section: Life Cycle and Biologymentioning

confidence: 99%

Quantifying the economic cost of invertebrate pests to New Zealand’s pastoral industry

Ferguson

Barratt

Bell

et al. 2018

New Zealand Journal of Agricultural Research

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Two exotic pests, Argentine stem weevil (ASW) and clover root weevil (CRW) are causing damage estimated at up to $200 M p.a. and $235 M p.a. respectively in dairy and sheep and beef pastures. While CRW is subject to successful biological control management it still causes considerable losses. Lesser pests also contribute to lost production, particularly as they often coexist with more major pests. However, their economic cost to New Zealand is difficult to calculate due to the variable nature of infestations on both temporal and spatial scales. At farm and paddock level, it is abundantly clear that substantial savings could be made if pest management is achieved. It is equally clear that in many instances the tools to do so are limited but if developed would contribute substantially to farm profitability.

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“…While the eggs are tolerant of high soil moisture, the first of the three larval instars, which occur from November-January, is not (King et al, 1981b). (King et al, 1981e). Consequently, because of its high latitude, New Zealand is considered to be near the limit of the ecological range of H. arator (Watson, 1979).…”

Section: Introductionmentioning

confidence: 99%

Populations of African black beetle, Heteronychus arator (Coleoptera: Scarabaeidae) in a Mediterranean climate region of Australia

Matthiessen

Ridsdill-Smith

1991

Bull. Entomol. Res.

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Populations of African black beetle, Heteronychus arator (Fabricius), a subterranean pasture-dwelling pest of potatoes, were examined in pastures in geographically separated potato-growing areas covering 3½° of latitude in southwestern Australia. Abundance of all life stages was estimated by taking soil cores and the reproductive state of females was assessed from the stage of their ovarian development. H. arator adults emerged in late summer-early autumn (January–March), ovaries matured slowly during winter and oviposition occurred in spring (September–November). The interval between equivalent population events was about six weeks from the northernmost to the southernmost regions. Fecundity was estimated to be around 12 eggs/female and greatest natural mortality occurred late in the pre-adult development phase.

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Ecology of black beetle,Heteronychus arator(Coleoptera: Scarabaeidae) — influence of temperature on feeding, growth, and survival of the larvae

Cited by 24 publications

References 10 publications

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

Quantifying the economic cost of invertebrate pests to New Zealand’s pastoral industry

Populations of African black beetle, Heteronychus arator (Coleoptera: Scarabaeidae) in a Mediterranean climate region of Australia

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