Reynoutria sachalinensis extract |
Last updated: 24/10/2024
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(Also known as: Giant Knotweed Plant Extract; Fallopia sachalinensis; Polygonum sachalinense; REYSA) |
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 natural plant extract (containing emodin, physcion and resveratrol) which can be used as a preventative treatment for various plant fungal and bacterial infections |
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Grey mould (Botrytis cinerea); Powdery mildew (Uncinula necator, Leveillula taurica, Podosphaera macularis); Mildews; Canker |
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Protected ornamentals; Protected glasshouse crops including tomatoes, cucumbers; Fruit including strawberries, grapes; Wheat |
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Current |
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2000, first registered as a pesticide, USA |
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Class: Magnoliopsida; Order: Caryophyllales; Family: Polygonaceae |
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Not approved |
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Not applicable |
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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United Kingdom |
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Not applicable |
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Not applicable |
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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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Turkey, USA (California), Mexico, Morocco |
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Fungicide, Plant Growth Regulator, Other substance |
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Biostimulant, Microbiocide |
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Plant-derived substance |
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100% extract |
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Natural; Complex mixture |
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Biostimulant. Used as a preventative treatment, the extract activates the plants internal defense system that prevents growth of certain fungi and bacteria. |
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Extract from the giant knotweed plant (Reynoutria sachalinensis) |
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The extract is prepared by mixing the dried and ground plant material with ethanol. |
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Crop protection |
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Grey mould (Botrytis cinerea); Powdery mildew (Uncinula necator, Leveillula taurica, Podosphaera macularis); Mildews; Canker |
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Protected ornamentals; Protected glasshouse crops including tomatoes, cucumbers; Fruit |
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Suitable for use in all farming systems where approved for use in that country |
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055809 |
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Reynoutria sachalinensis extract (F. Schmidt) |
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Not applicable |
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Not applicable |
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Not applicable |
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P05 |
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- |
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The extract is an olive green to yellow brown coloured granular solid comprised of a variable and complex mix of botanical substances including emodin, physcion and resveratrol plus glucosides |
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Sakalia, Reynoutria sachaliensis extract |
Marrone Organic Innovations, Inc., USA |
Regalia Maxx |
Marrone Organic Innovations, Inc., USA |
Reysana |
Marrone Bio Innovations, USA |
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Usually supplied as a suspension concentrate in an ethanol base for diluting with water and using as a plant spray. |
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<1000 |
Methanol |
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<100 |
n-Heptane |
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<100 |
p-Xylene |
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<100 |
Ethyl acetate |
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0.135 |
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48.65 |
at 1 g l⁻¹ |
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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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None
Terrestrial ecotoxicology |
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> 5000 |
Rat |
Low |
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> 2000 |
Colinus virginianus |
Low |
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> 100 |
Eisenia foetida corr |
Moderate |
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12.5 |
Eisenia foetida corr |
Moderate |
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Nitrogen mineralisation: No significant adverse effect Carbon mineralisation: No significant adverse effect |
Dose: 3.75 mg kg⁻¹ soil 28 Day |
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> 100 |
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Low |
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> 100 |
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Low |
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> 1873 |
Aphidius rhopalosiphi |
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> 1873 |
Typhlodromus pyri |
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2.98 |
Pimephales promelas |
Moderate |
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20 |
Daphnia magna |
Moderate |
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54.6 |
Selenastrum capricornutum |
Low |
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HUMAN HEALTH AND PROTECTION |
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Not applicable |
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> 5000 |
Rat |
Low |
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2000 |
Rat |
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> 2.6 |
Rat |
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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 ; E2 E = Unspecified genotoxicity type (miscellaneous data source) 2 = Mixed/ambiguous results |
XNo, known not to cause a problem |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
?Possibly, status not identified |
XNo, known not to cause a problem |
No data found |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
No data found |
XNo, known not to cause a problem |
No data found |
Eye irritant |
Phototoxicant |
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?Possibly, status not identified |
No data found |
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Emodin is a possible renal toxicant |
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Not explosive or oxidising Not expected to auto-ignite; Not highly flammable IMDG Transport Hazard Class 3 |
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Environment: H411 |
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Not listed (Not listed) |
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UN1197 |
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Reynoutria sachalinensis extract |
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Record last updated: |
24/10/2024 |
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 |