Fluroxypyr 200g/LEC Weed Control Herbicides CAS 69377-81-7

Active ingredient

Fluroxypyr

Chemical name

Classification

Herbicide / Agrochemical

Biochemistry

Synthetic auxin (acting like indolylacetic acid).

 Mode of action

Fluroxypyr is applied as fluroxypyr-meptyl. After predominantly foliar uptake, the ester is hydrolysed to the parent acid, which is the herbicidally active form, and translocated rapidly to other parts of the plants. Acts by inducing characteristic auxin-type responses, e.g. leaf curling.

Usage

Fluroxypyr is effective by post-emergence foliar application, controlling a range of economically important broad-leaved weeds (including Galium aparine and Kochia spp.) in all small grain crops, and Rumex spp. and Urtica dioica in pastures. Directed applications are used against herbaceous and woody broad-leaved weeds in orchards (apple only) and plantation crops (rubber and oilpalm), and broad-leaved brush spp. in conifer forests. Post-emergence, broadcast applications of fluroxypyr in maize up to the 6-leaf stage of the crop are used for control of Calystegia sepium, Convolvulus arvensis and Solanum nigrum. The meptyl and 2-butoxy-1-methylethyl esters have similar activity, the advantage of the latter being the wider range of formulation options that are available. Applied at 180-400 g a.e./ha. 

Phytotoxicity

Non-phytotoxic to the crops for which its use is recommended.

Mammalian Toxicology

Oral: Acute oral LD50 for rats 2405 mg/kg. 

Skin and eye: Acute percutaneous LD50 for rabbits >5000 mg/kg. Mild eye irritant; non-irritating to skin (rabbits). 

Inhalation: LC50 (4 h) for rats >0.296 mg/l air. 

Certificate of quality

Fluroxypyr 200g/L EC

Item

Appearance

A.I. Content

Water

pH value

Emulsify stability (20times)

Specification

Yellow transparent liquid

≥200g/L

≤0.5%

5.0-8.0

No oil slick, no sediment