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How to improve the use of pesticides
In order to enhance the effective use of **pesticides**, some farmers and their peers tend to increase the dosage, thinking that more is better. As the saying goes, “If you're not afraid of a bull, you won't be afraid to add two pounds of charcoal.†However, this approach is only necessary when pests develop resistance. The issue of drug resistance requires careful analysis for each specific pest and pesticide, and it cannot be generalized or oversimplified.
To ensure efficiency, safety, reduced environmental pollution, and to slow down the emergence of resistance, I would like to suggest five key strategies. Among them, accurate diagnosis, proper selection of pesticides, and improved prediction and timely application are crucial in improving pesticide usage:
First, accurate diagnosis and appropriate treatment. Correct identification of the pest or disease is the foundation of successful control. Only with an accurate diagnosis can we develop an effective strategy and choose the right pesticide. At the same time, it's essential to understand the properties and target organisms of different chemicals to ensure they are used appropriately.
Second, strengthen monitoring and apply pesticides at the right time. Pests and diseases follow a certain pattern of outbreak, much like a fire—once it starts, it must be controlled immediately. If left unchecked, it becomes too late to act effectively. Also, all pesticides have a limited period of effectiveness. Timely application is key to ensuring the success of prevention and control. This requires regular field inspections, monitoring insect populations, and making accurate forecasts.
Third, select suitable equipment to improve efficiency and quality. Many **fungicides** mainly work as protectants, while many insecticides rely on stomach toxicity or contact killing. Therefore, even distribution without over-application or leakage is essential. To achieve this, especially during large-scale applications, it’s important to continuously improve application techniques and increase mechanization.
Fourth, precise dosing and proper application. Accurate measurement is vital for effectiveness. If the dosage is wrong, it may not only fail to control the problem but also cause unnecessary waste. In practice, common mistakes include increasing the dose unnecessarily or using insufficient water, both of which reduce effectiveness.
Finally, delay resistance by rotating or mixing products. Resistance has become a major concern in agriculture. It often results from the repeated use of the same chemical over large areas. By rotating or combining different types of insecticides and bactericides, we can prevent pests from developing a stable resistance trait, thus prolonging the effectiveness of available pesticides. This not only improves crop protection but also helps preserve valuable pesticide resources for the future.