Pro-Star 500 SC, KS

Protecting Yield Potential from the Start

Field success is built in the early stages of crop development. Pro-Star 500 SС is a specialized soil-applied herbicide designed to handle the critical period when newly germinated weeds threaten to outcompete crops like soybeans, sunflowers, and various vegetables. By creating a protective barrier in the top layer of soil, this product stops weeds before they emerge, allowing the primary crop to establish itself without nutrient or water competition.

Practical Field Application

The product, developed by Zhejiang Zhongshan Chemical Industry Group, is a systemic selective herbicide. Its primary target is controlling annual dicotyledonous and grassy weeds. Because it is a pre-emergence herbicide, the timing of application is essential: it should be sprayed onto the soil surface immediately after sowing the main crop.

• Crop Selectivity: The herbicide is designed to be safe for a wide range of crops including sunflowers, soybeans, peas, corn, carrots, coriander, and common beans. Crops can metabolize the active ingredient, while sensitive weeds are terminated upon germination.
• Dosing Strategy: The recommended application rate ranges from 2 to 4 liters per hectare. This flexibility allows agronomists to adjust rates based on soil type and the historical weed pressure of the field.
• Soil Conditions: As a soil herbicide, its efficacy is linked to moisture. Adequate soil moisture is required for the product to activate and form the protective 'screen' that prevents weed growth.

Technical Insights

The formulation (Suspension Concentrate) is highly stable and mixes easily in tank sprayers. Since it is a selective herbicide, it performs best on fields with a well-prepared, fine-textured seedbed. Avoid large soil clods, as they can create "shadows" where weeds might escape treatment. By investing in this pre-emergence solution, farmers can significantly reduce the need for subsequent mechanical inter-row cultivation or costly manual weeding, effectively managing their fields with a single, precisely timed application.