Pythium oligandrum Strain B301 |
Last updated: 15/08/2024
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(Not known by any other names) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
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A fungal parasite widespread in nature, which can be used to control a wide range of soil-borne fungal pathogens |
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Botrytis; Fusarium; Gaeumannomyce; Ophiostoma; Phialophora; Phoma; Phythopthora; Pseudocercosporella; Pythium; Sclerotinia; Verticillium |
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Oilseed rape; Wheat; Spring barley; Grapes; Glasshouse vegetables |
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Efficiacy supported by field trials |
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Filamentous. Colonises the rhizosphere of treated plants. Accession number I-5180. Life cycle has two phases. Firstly, the asexual production of sporangia and secondly, a sexual phase generating oospores |
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Novel |
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2011, first isolated |
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Class: Oomycetes; Order: Perensporales; Family: Pythiaceae. NB Orginally thought to be fungal now assigned to the Chromista Kingdom |
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Not approved |
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No UK approval for use as a pesticide |
EC Regulation 1107/2009 (repealing 91/414) |
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Pending |
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Belgium |
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No |
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Yes |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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ISIceland |
NONorway |
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Fungicide |
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Systemic resistance inducer/elicitor |
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Micro-organism |
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1.0E+07 oospores per gram |
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EFSA 2024 dossier: tryptamine metabolite < 0.41 g kg⁻¹ |
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Natural |
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Multiple routes: mycoparasitism, outcompetes pathogenic soil fungi for space and nutrients and also stimulates crop resistance to attack via the production of auxin-like substances. |
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Naturally occuring in soils and globally widespread. First isolated from vineyard soils in Bordeaux region, France. |
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Manufactured for commercial use via fermentation |
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Crop protection |
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Botrytis; Fusarium; Gaeumannomyce; Ophiostoma; Phialophora; Phoma; Phythopthora; Pseudocercosporella; Pythium; Sclerotinia; Verticillium |
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Oilseed rape; Wheat; Spring barley; Grapes; Glasshouse vegetables |
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Suitable for use in all farming systems where approved for use in that country |
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936 |
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Pythium oligandrum strain B301 |
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Not applicable |
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Not applicable |
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Not applicable |
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BM02 |
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Fungus |
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Usually supplied as a wettable powder. A single application is usually sufficient for an entire season. |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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Known soil and groundwater metabolites |
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None
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tryptamine Note: Toxicologically relevant |
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Human, Rodent, Plant, Fungi |
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Terrestrial ecotoxicology |
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> 2.98 x 1006 |
Colinus virginianus as oospores/kg BW/day |
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> 491 |
P5 P = Other non-EU, UK or US Governments and Regulators 5 = Verified data used for regulatory purposes Apis mellifera |
Low |
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> 105 |
P5 P = Other non-EU, UK or US Governments and Regulators 5 = Verified data used for regulatory purposes Apis mellifera |
Low |
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> 2.81 x 1008 |
Aphidius rhopalosiphi> |
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> 3.01 x 1008 |
Typhlodromos pyri |
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> 5.0 x 1004 |
Oncorhynchus mykiss as oospores/kg BW/day |
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> 5.0 x 1004 |
Daphnia magna as oospores/kg BW/day |
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1.30 x 1006 |
Pseudokirchneriella subcapitata as oospores/kg BW/day |
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HUMAN HEALTH AND PROTECTION |
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Not applicable |
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None allocated |
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None allocated |
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None allocated |
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None allocated |
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Negligible risk to bystanders for proposed uses |
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Negligible risk to operators for proposed uses |
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Carcinogen |
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Endocrine disruptor |
XNo, known not to cause a problem |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E3 E = Unspecified genotoxicity type (miscellaneous data source) 3 = Negative |
XNo, known not to cause a problem |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
XNo, known not to cause a problem |
?Possibly, status not identified |
?Possibly, status not identified |
Eye irritant |
Phototoxicant |
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?Possibly, status not identified |
No data found |
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Micro-organisms may provoke sensitising reactions |
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No information available |
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Not listed (Not listed) |
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Pythium oligandrum Strain B301 |
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Record last updated: |
15/08/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |