BION®️ 50 WG is an outstanding systemic plant activator, recommended for preventive protection against diseases, as indicated in the instructions for use. This product stimulates the natural defense mechanism of plants, allowing them to protect themselves and fight diseases caused by various pathogens. Its action is based on the defense response phenomenon called “Systemic Activated Resistance” (SAR), also known as acquired systemic resistance or induced systemic resistance, which is a broad and natural physiological immunization in plants.
It is important to note that BION®️ 50 WG has no direct activity against diseases, so it is recommended as a complement to traditional control programs. It should be applied preventively before the disease occurs, showing rapid absorption by the foliage and translaminar movement.
This product acts as an elicitor, triggering reactions in plants in a preventive manner to prepare them against possible attacks by pathogens and abiotic agents. Therefore, it is applied preventively to the foliage of the crop to strengthen the plant against infections by bacteria, fungi, viruses and other biotic and abiotic factors.
It also acts on the salicylic acid pathway in plants, being more potent and faster than this substance alone. In Chile, it has been essential to prevent the advance of PSA in kiwis and has also been used in cherry trees to prevent bacterial cancer.
Unlike coppers, which act on the surface of the plant, BION®️ 50 WG works internally, reducing the bacterial load inside the plant, especially in the vascular vessels.
Raúl Méndez, Syngenta's agroAmigo zone manager, highlights the importance of applying this Syngenta tool: “For copper, it doesn't matter whether we have leaves or not, but with BION the foliage needs to be active, so our technical recommendation is to apply it from March 15 to April 15, considering that cherry producers, starting from this last fortnight, need the leaves to be down in order to start accumulating cold.”
Regarding dosage, Méndez adds: “It should be used at 10 grams per 100 liters of water, since it is a product that does not require a lot of wetting, since it is a fairly systemic product, so probably, 1000 liters of water per hectare is enough to achieve the eliciting effect that we are looking for, but it must be accompanied by other precautionary measures such as copper or antibiotics, which are some of the few tools that exist today for the control of bacterial cancer in cherry trees. It is a measure that by itself is not sufficient, but no tool by itself is sufficient, within what is an integrated disease management program.”
In summary, BION®️50 WG is an effective tool to strengthen plant defenses against diseases, complementing traditional control methods and contributing to healthier and more sustainable agricultural production.
