Plant protection drugs (PPE) are indispensable pest control tools in today's farming. In order for PPE to maximize its effectiveness in preventing and controlling pests, farmers must adhere to the 4 right principles: Right drug - Right dose - Right time - Right method.

According to statistics from the Plant Protection Department, up to now, more than 300 species of pests are resistant to pesticides through many different mechanisms. In particular, chemical resistance is affected by factors such as age, season, weather, frequency of chemical exposure, population density, toxicity and method of poisoning of chemicals.

Herbicides are important tools for farmers to protect crop yield and quality by preventing weeds from competing with crops for nutrients, light, space and water.

In recent years, pests have been a concern for farmers. To completely control these pests, farmers have to mix many types of pesticides and spray them over and over again. This is both costly and ineffective, and can easily lead to pesticide resistance. This affects the economy of each farmer, their health, and the environment.

Small rice leaf roller is a widespread rice pest, often occurring and causing damage during the tillering, panicle initiation, and flowering stages. Leaf rollers cause damage to rice all year round, commonly occurring in the winter-spring and summer-autumn crops. If there are no good control measures, they will cause serious damage to farmers.

Unlike other pests, rice grain smut is caused by many factors. Therefore, finding the cause and preventing rice grain smut causes many difficulties for farmers.