Pydiflumetofen is a pyrazole amide fungicide with novel molecular structure, high bactericidal activity and broad spectrum. At the same time, this type of fungicide has a different mechanism of action from the classic benzimidazole, triazole and methoxyenoate pesticides and is less likely to produce cross-resistance.
Mechanism of action
The mechanism of action of triflufenac is that it is a succinate dehydrogenase inhibitor. By acting on succinate dehydrogenase (SDH), one of the hubs connecting oxidative phosphorylation and electron transport in pathogens, it leads to disorders of the tricarboxylic acid cycle (TAC). It hinders the energy metabolism of pathogens, thereby inhibiting the germination of pathogenic fungal spores, the growth of germ tubes and mycelium, leading to the death of pathogens, thereby achieving the purpose of disease prevention and treatment. It is an excellent fungicide developed in recent years.
Triflufenac has protective and therapeutic effects, and has excellent systemic conductivity, which can be conducted to all parts of the plant body. However, it moves slowly in the plant body. Because of its slowness, its protective effect is better and its effect lasts longer! When crops are used twice in one growing season, they rarely get sick, management is more convenient, medication and labor costs are reduced, and losses are reduced.
Characteristics of triflufenacil compounds
It is understood that among all chemical types of products, pydiflumetofen has the highest activity against leaf spot and powdery mildew, the two most common diseases in agricultural production. It is highly effective against diseases caused by pathogenic bacteria such as Botrytis, Sclerotinia sclerotiorum and Corynesporium that are difficult to control. The occurrence of these diseases will cause severe yield reductions in crops such as grapes, peanuts and potatoes. It can prevent and control diseases caused by Fusarium on grains, such as scab, etc. It is currently the only agent among SDHI fungicides that can effectively prevent and control scab, and can significantly reduce DON toxins. It also has plant health effects, provides long-lasting green leaf maintenance, protects leaves and ears, and significantly improves crop yield and quality.
At the same time, pydiflumetofen has outstanding performance in four aspects: broad spectrum, high efficiency, durability and stability.
First, broad spectrum. Since its launch, Pydiflumetofen has been registered for more than 30 diseases in more than 100 crops around the world. The unique N-methoxy group structure in its molecule makes it exhibit excellent activity against Botrytis cinerea, Fusarium, Sclerotinia, etc. It breaks the boundaries of traditional SDHI fungicides and can prevent and control 60% of crop diseases except oomycetes and bacteria.
Second, efficiency. The unique pyrazole amide group in the chemical structure brings higher antibacterial activity. Compared with similar fungicides, the control activity against Botrytis cinerea, Fusarium graminearum and Septoria is up to 8 to 30 times higher, and the disease prevention is more thorough.
Third, durability. The lipophilic group in the chemical structure can quickly and tightly bind to the waxy layer of leaves. 80% of the pesticide enters the waxy layer of the leaves 6 hours after application, and a small amount enters the plant body at the same time. It has better protection and can calmly cope with various external environments to ensure a longer-lasting control effect.
Fourth, stability. Excellent resistance to rainwater washout. It can be washed away by rainwater 1 hour after application. The retention capacity of active ingredients is 3 to 5 times higher than that of conventional chemicals. The performance is stable under different environmental conditions.
Pydiflumetofen has no cross-resistance with other agents used to control wheat scab and is a new wheat scab resistance management tool.
prospect
Pydiflumetofen has low toxicity, is safe for the environment, has long-lasting and stable efficacy, and can be used as a substitute or alternative to currently commonly used triazole and other fungicides, and has good application potential. Among all chemical types of products, pydiflumetofen has the highest activity against leaf spot and powdery mildew. It is highly effective against diseases that are difficult to control, such as those caused by pathogenic bacteria such as Botrytis, Sclerotinia sclerotiorum and Corynesporium. It also provides a breakthrough in the prevention and control of diseases caused by Fusarium on cereals, such as scab, and pydiflumetofen can increase crop yields and profits. At the same time, the pydiflumetofen molecule not only inherits the pyrazole amide group from the current high-efficiency SDHI fungicides, but also successfully introduces the N-methoxy structure, thus giving the product a very broad bactericidal spectrum. It can be applied to more than 100 crops and controls more than 30 major diseases; in particular, it is a breakthrough in preventing and treating diseases caused by Fusarium, such as wheat scab, and has significant toxin-reducing effects. Pydiflumetofen is currently the only SDHI fungicide registered to control wheat scab.
