Imazethapyr 70% WG

Imazethapyr 70% WG (Water Dispersible Granules) is a highly effective, selective herbicide belonging to the imidazolinone chemical family. It is widely used in agriculture for both pre-emergence and early post-emergence control of a broad spectrum of grasses and broadleaf weeds.

Below is a breakdown of its usage, application, and safety.

## 1. Key Technical Features

• Mode of Action: It inhibits the enzyme Acetolactate Synthase (ALS), which is crucial for the synthesis of branched-chain amino acids in plants. This disruption halts protein synthesis, leading to the death of the target weeds.

• Systemic Activity: It is absorbed through both roots and foliage and is translocated throughout the plant (xylem and phloem) to the growing points (meristems).

• Residual Control: It offers long-lasting residual activity, meaning it kills existing weeds and continues to suppress those that germinate later.

## 2. Recommended Crops and Dosage

Imazethapyr 70% WG is primarily registered for use in leguminous crops.

Note: Always mix with a sufficient quantity of water (typically 200 liters per acre) for uniform coverage.

## 3. Application Guidelines

• Timing: For best results, apply as an early post-emergence herbicide when weeds are in the 24 leaf stage.

• Adjuvants: It is often recommended to use a surfactant (like a non-ionic spreader) and Ammonium Sulfate to enhance the absorption of the herbicide into the weed leaves.

• Weather: Do not apply if rain is expected within 2 hours of application.

• Soil Moisture: Effectiveness is higher when there is sufficient moisture in the soil.

## 4. Safety and Precautions

• Crop Safety: When used at recommended doses, it is safe for the specified crops. Some temporary yellowing or stunting may occur under stress, but the crop usually recovers without yield loss.

• Rotation: Because it has residual activity, be cautious about the next crop in the rotation (e.g., certain sensitive vegetables or sugar beets).

• Personal Protection: Always wear protective gear (gloves, goggles, and masks). Avoid skin contact and inhalation.

• Storage: Store in a cool, dry place away from food, children, and livestock.