Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Fungus
Patent
1994-10-26
1996-04-30
Lilling, Herbert J.
Drug, bio-affecting and body treating compositions
Whole live micro-organism, cell, or virus containing
Fungus
435260, 4352541, C12N 114, C12N 104, A01N 6304
Patent
active
055122809
ABSTRACT:
A method for long term storage of a stable monodispersed aqueous suspension of conidia has been developed. This is based on the use of surfactants in a concentration range significantly higher than expected that is completely compatible with conidia, generally in the range of between 1 and 2% (w/v) in an aqueous suspension of between 0.01 and 50% (w/v) conidia. Fungal propagules (conidia) of entomopathogenic fungi such as M. anisopliae and B. bassiana can be successfully combined with higher than expected concentrations of commercially available anionic surfactants and wetting agents such as dioctyl sulfosuccinates (DSS) salts and derivatives thereof with no apparent negative impact upon either viability or insecticidal activity of the conidia. Other surfactants, dispersants and non-fungicidal materials can be added to the stabilized conidial suspensions without loss of viability, dispersibility, or shelf-life. Examples demonstrate the usefulness of these materials in the stabilization of conidial suspensions that remain viable and effective for the control of insects. The conidial formulations described in the examples can be applied in either dry or wet form.
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Johal Sarjit S.
Marold Lorraine M.
EcoScience Corporation
Lilling Herbert J.
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