Citrin, EC

Systemic grass control: technical insights into Clethodim in 'Citrin, EC'

The efficacy of weed control in technical crops depends directly on the absorption speed of the active ingredient and its ability to reach the weed’s growth points. The foundation of 'Citrin, EC' by Sharda Cropchem is Clethodim, a cyclohexanedione graminicide that provides systemic action against a broad spectrum of annual and perennial grass weeds.

Mechanism of action and molecular functionality

The key feature of 'Citrin, EC' lies in its specific inhibition of the acetyl-CoA carboxylase (ACCase) enzyme. Unlike many other herbicides, Clethodim blocks fatty acid synthesis specifically in grass plants. Due to its systemic nature, the product moves through the phloem and xylem to reach meristematic tissues, resulting in complete growth arrest of the weed within hours of application. Visual symptoms such as chlorosis and necrosis become evident within 3-7 days, with total plant death occurring within 14-21 days.

Application guidelines and technical nuances

• Selectivity: The product acts selectively only on grass components, making it safe for broad-leaved crops: sugar beet, soybean, sunflower, flax, oilseed rape, and potatoes.
• Formulation: The emulsifiable concentrate ensures high stability of the working solution and optimal adhesion to the leaf surface. It is essential to note that maximum efficacy is achieved when applying the product to actively growing weeds.
• Rates and dosage: The consumption rate varies from 1.0 to 2.0 L/ha, depending on the species composition of weeds and the degree of field infestation. A single treatment per season is recommended to comply with phytosanitary standards.

The use of 'Citrin, EC' requires maintaining the appropriate temperature regime (ideally 15–25°C) and the absence of stress factors for the crop, allowing the active ingredient to integrate into the weed's metabolism as quickly as possible. This is a robust solution for protecting crops during their most vulnerable stage of vegetation.