Biological control of molluscs with dauer larvae of Phasmarhabdi

Details Biological control of molluscs with dauer larvae of Phasmarhabdi Biological control of molluscs with dauer larvae of Phasmarhabdi

1996-03-29

1998-12-15

Naff, David M.

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

424 9347, 424405, 4352521, 435822, A01N 6300, A01N 2500, C12N 120, C12N 100

Patent

active

058492844

ABSTRACT:
The invention disclosed is related to a composition for the control of molluscs wherein an effective amount of infective dauer larvae of Phasmarhabditis nematodes which have been cultured with a nematode growth promoting and pathogenicity-inducing bacterium, as well as a carrier or encapsulation agent are provided as the ingredients for the composition. Further, the composition can be used in the form of a water-dispersable powder comprising as the carrier a calcium montmorillonite clay. The nematode concentration in the water-dispersable powder is 0.1.times.10.sup.6 to 2.0.times.10.sup.6 per gram of total composition (wet weight), and preferably from 0.3.times.10.sup.6 to 0.8.times.10.sup.6 per gram of the total composition (wet weight). Further, the nematodes are selected from amongst the species P. neopapillosa or P. hermaphrodita. The growth promoting bacterium is a Moraxella osloensis strain or Pseudomonas fluorescens strain.

REFERENCES:
Godan, D., "Pest Slugs and Snails: Biology and Control", Springer-Verlag, Berlin Heidelberg New York, 1983.
Andrassy, I., Taxonomic Review of the Sub-Order Rhabditina (Nematoda: Secernentia), 1983, Orston, Paris, pp. 84-117.
Glen, D.M., & C.W. Wiltshire, "Estimating Slug Populations From Bait-Trap Catches", 1986 British Crop Protection Conference--Pests and Diseases, pp. 1151-1158.
Bedding, R.A., "Large scale production, storage and transport of the insect-parasitic nematodes Neoaplectana spp. and Heterorhabditis spp.", Ann. Appl. Biol., 104, 1984, pp. 117-120.
Bedding, R.A., "Low Cost In Vitro Mass Production of Neoaplectana and Heterorhabditis Species (Nematoda) for Field Control of Insect Pests," Nematologica, 27, 1981, pp. 109-114.
Poinar, Jr., G.O. & E.L. Hansen, "Associations between Nematodes and Bacteria," Helminthological Abstracts (Series B), vol. 55, No. 3, Sep. 1986, pp. 61-81.
"Morphology and Biology of Bostryx Consperus (Sowerby) (Mollusca, Bulimulidae) in the Central Costal Slopes of Peru", R. Ramirez, Revista Brasileira De Zoologia, vol. 5, No. 4, 1988, pp. 609-617.
"Nematoden und Schnecken", H. Mengert, Zeitschrift Fur Morphologie Und Okologie Der Tiere, vol. 41, 1953, pp. 311-349.
"Nematodes-Bacteries, une Association Efficace Dans La Lutte Contre Les Insectes", C.Douenel, Biofutur, No. 64, Jan. 1988, pp. 39-42.
Japanes Abst. (JP 63313580), "Formate Dehydrogenase-prod by news Moraxella. . . ", 1987, see abstract.

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