Astra, KE, herbicide

Mechanism of Action and Selectivity

The «Astra, EC» herbicide by Technotorg-Don is a systemic soil-applied herbicide based on propisochlor. The primary function of this active ingredient is the inhibition of cell division in germinating weeds. Through its systemic activity, the product enters the plant via the coleoptile (in grasses) or hypocotyl (in broad-leaved weeds), effectively blocking protein and lipid synthesis at the initial stages of growth. A critical advantage of this product is its selectivity: crops such as soybeans, sunflowers, and corn are capable of metabolizing the active ingredient, which ensures high crop safety when used according to the label requirements.

Technical Application Details

The emulsifiable concentrate (EC) formulation ensures rapid distribution of the active ingredient within the soil solution. This is a crucial factor for soil-applied herbicides, as the efficacy of «Astra» relies heavily on uniform coverage and the moisture levels of the topsoil layer. The recommended dosage range of 2.0 to 3.0 liters per hectare allows for precise adjustment based on specific soil types and the anticipated weed pressure levels in the field.

• Application Timing: Exclusively pre-emergence of the crop.
• Target Spectrum: Effectively controls a wide range of annual grasses and broad-leaved weeds that are most competitive during the first weeks of crop development.
• Usage frequency: Optimized for a single-pass application, which reduces the overall pesticide load on the crop rotation cycle.

Given its classification as a second-hazard-class substance, strict adherence to personal protective equipment protocols and chemical handling regulations is mandatory during operation. The selective nature of the product makes «Astra» a reliable tool for establishing a clean, competition-free start, allowing cultivated plants to thrive by retaining moisture and nutrients without early-stage weed interference.