SIDURON

Chemical properties

Colorless or white crystalline solid or powder. Odorless. Commercial product is available as an emulsifi- able concentrate.

The Uses of SIDURON

Selective preemergence herbicide used to control annual weed grasses and prevent growth of crabgrass, foxtail and barnyard grass in turf, cereals and other food crops.

Definition

ChEBI: Siduron is a member of ureas.

General Description

Siduron is a pre-emergence and post emergence phenylurea herbicide used for the control of annual grass weeds. Its mode of action involves the inhibition of photosynthesis.

Agricultural Uses

Herbicide: A pre-emergence herbicide used to control annual grasses, e.g., crabgrass, foxtail, and barnyard grass. Used on newly seeded or established turf and lawn grasses and as pre-emergence treatment to bare soil following spring seeding. Not listed for use in EU countries. Registered for use in the U.S.

Trade name

GREENFIELD®; GRO-TONE®[C]; H-1318®; TREY®; TUPERSAN®

Potential Exposure

A phenyl urea preemergence herbicide used to control annual grasses (e. g., crabgrass, foxtail, and barnyard grass) and on newly seeded or established turf and lawn grasses and as bare soil treatment following spring seeding.

Environmental Fate

Soil. A fungus and two Pseudomonas spp. isolated from soil degraded siduron to form the major metabolites: 1-(4-hydroxy-2-methylcyclohexyl)-3-(p-hydroxyphenyl)urea, 1-(4- hydroxy-2-methylcyclohexyl)-3-phenylurea and 1-(4-hydroxyphenyl)-3-(2-methycyclohexyl)urea (Belasco and Langsdorf, 1969).
Plant. After 8 days following absorption in barley plants, no metabolites were detected (Splittstoesser and Hopen, 1968).

Shipping

UN2767 Phenyl urea pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3002 Phenyl urea pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Waste Disposal

Incinerate in a unit with efflu- ent gas scrubbing. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.