Clethodim

What Is Clethodim? 

Clethodim is a selective, systemic herbicide commonly used to control grass weeds in a variety of row and specialty crops, including soybeans, cotton, lentils, peas, peanuts and sunflowers.

Designed to be mixed with water and applied to crops using a sprayer, clethodim is used post-emergence to inhibit the growth of grass weed shoots and roots, killing the weeds. It can also be used to control volunteer corn, which grows from kernels left behind in the field after harvest. 

When Should Farmers Apply Clethodim? 

Farmers should apply clethodim once grass weeds have emerged and are in early growth stages. Spray clethodim when weather conditions are favorable, ideally when there is no rain in the forecast for at least the next 24 hours. Because clethodim is applied with a sprayer, monitoring wind conditions and using best application practices is recommended to minimize drift.

How Much Clethodim Should Farmers Use Per Hactare?

The specific clethodim application rate per hactare depends on weed pressure, crop type and agronomic factors, including tillage method.  

When tank mixing with clethodim, crop oil is required. Clethodim is also frequently sprayed with glyphosate. Since poor water quality can reduce the uptake and translocation of clethodim, a spray-grade AMS water conditioner is recommended with clethodim applications to enhance weed control. 

Following the label instructions carefully when using clethodim or any other herbicide maximizes product performance and ensures safe application. 

Products with Clethodim