Nematode biopesticide
AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsRobin Anthony Bedding, Simone Daniella Clark, Karen Louise Butler, Jacqueline Louise Vella, Felice Driver
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Abstract
A composition and method for controlling scarabs, especially lawn scarabs, utilising certain strains of the entomopathogenic nematode species, Heterorhabditis zealandica are disclosed. The nematode strains used in the composition and method generally have an LD50 value of less than 300 IJ as measured by pot assays against final instar scarab larvae.
Claims19
A composition comprising an amount of an entomopathogenic nematode selected from the group of H. zealandica strains consisting of strains JB1/X1, GKB and JB3D, optionally in admixture with a suitable agricultural and/or horticultural carrier.
An isolated nematode selected from the H. zealandica strains designated JB1/X1, GKB and JB3D.
A process for producing a composition for controlling larval and/or pupal scarabs comprising:
- (i) subjecting one or more candidate entomopathogenic nematodes of the species Heterorhabditis zealandica to a 14-day pot assay against final instar Cyclocephala signaticallis larvae and/or final instar Popilla japonica larvae;
- (ii) selecting an entomopathogenic nematode which has an LD50 value of less than 300 IJ as measured by the 14-day pot assay;
- and
- (iii) admixing the entomopathogenic nematode of step (ii) with a suitable agricultural or horticultural carrier.
Dependencies are inferred from the claim text.