Butachlor is a herbicide used for pre-emergence control of annual grasses and some broad-leaved weeds. It has a low aqueous solubility and a low volatility. Depending on local conditions it may be moderately persistent in some soils. It is not expected to leach to grpundwater. It is moderately toxic to most fauna and flora, the main exception being honeybeesfor which butachlor has a low toxicity. It has a moderate oral mammalian toxicity if ingested and is both a skin and eye irritant.
Data alerts
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
Environmental fate Moderate alert: Drainflow: Slightly mobile; Potential for particle bound transport: Medium
Ecotoxicity High alert: Fish chronic ecotoxicity: High; Earthworms acute ecotoxicity: High
Human health Moderate alert: Mammals acute toxicity: Moderate; Possible Carcinogen
Warning: Significant data are missing
GENERAL INFORMATION
Description
A herbicide used for pre-emergence control of annual grasses and some broad-leaved weeds particularly in rice crops
Example pests controlled
Barnyardgrass; Crab grass; Torpedo grass; Witchgrass; Red deadnettle
Example applications
Rice; Wheat; Barley; Peanuts
Efficacy & activity
-
Availability status
-
Introduction & key dates
circa 1970
UK regulatory status
UK COPR regulatory status
Not approved
Date COPR inclusion expires
Not applicable
UK LERAP status
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
EC Regulation 1107/2009 status
Not approved
Dossier rapporteur/co-rapporteur
Not applicable
Date EC 1107/2009 inclusion expires
Not applicable
EU Candidate for substitution (CfS)
-
Listed in EU database
Yes
Approved for use (✓) under EC 1107/2009 in the following EU Member States
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