Group 8 herbicides

Bensulide is a selective organophosphate herbicide. It is one of a few organophosphate compounds that are used as an herbicide. Most of the others are used as insecticides. It is used on vegetable crops such as carrots, cucumbers, peppers, and melons and in cotton and turfgrass to control annual grasses such as bluegrass and crabgrass and broadleaf weeds. It is often applied before the weed seeds germinate (pre-emergence) in order to prevent them from germinating. It is available as granules or an emulsifiable concentrate. Estimates place the total use of bensulide in the United States at abou

Benthiocarb is a thiocarbamate cholinesterase inhibitor used as an herbicide. Benthiocarb is almost always used to control the weeds around rice crops, but its effectiveness is not specific to just rice crops. The benthiocarb molecule is an organic molecule containing a phenol bonded to a chlorine atom.

Prosulfocarb is a preëmergent herbicide used agriculturally in Australia, the EU, Japan, New Zealand, (since 2020), Morocco and Iran, for control of annual ryegrass and toad rush in wheat and barley crops. It was introduced to the EU in 1988 and is rapidly growing in use, with sales increasing by over 500% in France since 2008.

chemical compound

Ethofumesate is a pre- and post-emergent benzofuran herbicide used on sugar beets to control weeds, notably blackgrasses. UK registration in 2016 is planned for preëmergent use on wheat as an auxiliary component of tank mix. Ethofumesate is used in Australia, to control wintergrasses in turfgrasses, along fencelines and tree plantations. Young weeds absorb ethofumesate through roots and shoots, and the ethofumesate inhibits respiration and photosynthesis. Ethofumesate is a Group J (Australia), K3 (Global), Group 15 (numeric), resistance class herbicide.

Tri-allate or triallate is a selective preëmergent thiocarbamate herbicide, used to control wild oats and sundry grasses and broadleaf weeds, often co-applied with trifluralin, which is much weaker against wild oats than tri-allate. Residual control can be expected for 6 to 8 weeks. It is used in Australia, India and the United States. It was first registered in 1961.