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Influence of Soil Texture and Moisture On the Infectivity of Heterorhabditis Sp. D1 and Steinernema Glaseri for Larvae of the Sheep Blowfly, ...

Influence of Soil Texture and Moisture On the Infectivity of Heterorhabditis Sp. D1 and... INFLUENCE OF SOIL TEXTURE AND MOISTURE ON THE INFECTIVITY OF HETERORHABDITIS SP. D1 AND STEINERNEMA GLASERI FOR LARVAE OF THE SHEEP BLOWFLY, LUCILIA CUPRINA BY A. S. MOLYNEUX1)*) and R. A. BEDDING2) 1) Department of Entomology, Waite Agricultural Research Institute, University of Adelaide, Glen Osmond, 5064 South Australia, Australia 2) Division of Entomology, CSIRO, Stowell Avenue, Hobart, 7000 Tasmania, Australia Lucilia cuprina larvae were exposed to infective juvenile nematodes of Heterorhabditis sp. D1 and Steinernema glaseri KG strain in sand, loamy sand and a clay loam at various moisture contents representing a range of moisture potentials. Parasitism was less in soils of high clay content, with the larger nematode, S. glaseri, having the lowest level of parasitism. Parasitism in loamy sand oc- curred at low moisture potentials equivalent to or below the permanent wilting point of plants. In sand only, both nematode species parasitised larvae at high moisture potentials close to satura- tion. Moisture potential was found to be more meaningful than moisture content per se for com- parisons of nematode parasitism in different soil types. Heterorhabditis and Steinernema species are potential control agents of post-feeding, 3rd instar L. cuprina larvae and other soil-dwelling insect pests in areas http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Influence of Soil Texture and Moisture On the Infectivity of Heterorhabditis Sp. D1 and Steinernema Glaseri for Larvae of the Sheep Blowfly, ...

Molyneux, A.S.; Bedding, R.A.
Nematologica , Volume 30 (3): 8 – Jan 1, 1984
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529284X00266
Publisher site
See Article on Publisher Site

Abstract

INFLUENCE OF SOIL TEXTURE AND MOISTURE ON THE INFECTIVITY OF HETERORHABDITIS SP. D1 AND STEINERNEMA GLASERI FOR LARVAE OF THE SHEEP BLOWFLY, LUCILIA CUPRINA BY A. S. MOLYNEUX1)*) and R. A. BEDDING2) 1) Department of Entomology, Waite Agricultural Research Institute, University of Adelaide, Glen Osmond, 5064 South Australia, Australia 2) Division of Entomology, CSIRO, Stowell Avenue, Hobart, 7000 Tasmania, Australia Lucilia cuprina larvae were exposed to infective juvenile nematodes of Heterorhabditis sp. D1 and Steinernema glaseri KG strain in sand, loamy sand and a clay loam at various moisture contents representing a range of moisture potentials. Parasitism was less in soils of high clay content, with the larger nematode, S. glaseri, having the lowest level of parasitism. Parasitism in loamy sand oc- curred at low moisture potentials equivalent to or below the permanent wilting point of plants. In sand only, both nematode species parasitised larvae at high moisture potentials close to satura- tion. Moisture potential was found to be more meaningful than moisture content per se for com- parisons of nematode parasitism in different soil types. Heterorhabditis and Steinernema species are potential control agents of post-feeding, 3rd instar L. cuprina larvae and other soil-dwelling insect pests in areas

Journal

Nematologica – Brill

Published: Jan 1, 1984

Keywords: soil structure; Moisture potential; entomophilic nematodes; biological control; parasitism

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