Because of its unique mechanism of action, quinclorac is widely used to control a variety of weeds, especially in rice growing areas. It mainly targets the following types of weeds:
1. Barnyard grass: Barnyard grass is one of the most common weeds in rice fields. It has a similar shape to rice and competes for nutrients and light resources, seriously affecting rice yield. Quinclorac has a significant control effect on barnyardgrass and can effectively curb its growth in the early stages.
2. Stephanotis: Stephanotis, also known as water sedge, is another rice field weed that is difficult to control. Its root system is developed and its reproductive capacity is strong, posing a serious threat to rice growth. Quinclorac achieves effective control by destroying the photosynthesis of Stephanotis japonica.
3. Cow felt: Cow felt is a small aquatic weed. Although it is not conspicuous, it reproduces quickly and can quickly cover the water surface, affecting the photosynthesis and ventilation of rice. Quinclorac can effectively inhibit its growth and keep the rice fields clean and ventilated.
4. Other dicotyledonous weeds: such as duckweed, cabbage, etc. These weeds will also compete with rice for nutrients and light, and quinclorac can also produce good control effects on them under suitable conditions.
Precautions for use
1. Dosage control: When using quinclorac, you must strictly follow the recommended dosage. Excessive use may cause crop damage or environmental pollution.
2. Application period: It is crucial to choose the appropriate application period. Generally, the best application effect is after the emergence of weeds and before the three-leaf stage, when weeds are most sensitive to pesticides.
3. Environmental conditions: Pay attention to the weather forecast before applying pesticides, and avoid applying pesticides on rainy or windy days to avoid pesticide loss or drift to non-target crops.
4. Crop rotation and resistance management: Long-term single use of quinclorac may cause weeds to develop resistance. It is recommended to use it in rotation with other herbicides to delay the development of resistance.
5. Safety protection: Applicators should wear protective clothing, gloves and masks to avoid direct contact with the agent, and wash their bodies and clothes promptly after applying the agent.
