Biological pesticides guarantee management authorized by the ProteCitrus stripe

Biological pesticides are essential for the integrated management of citrus pests and diseases, mainly due to the adoption of the ProteCitrus list, which lists products authorized for use in orchards, in accordance with market trends and international regulations. Bioinputs also help to reduce resistance to existing chemical molecules, contributing to the creation of a more suppressive and balanced environment.

According to Professor Santin Gravena, Koppert's citrus consultant, the adoption of biological control in the sector has many advantages. “Right from the start, it results in less use of chemical insecticides and greater sustainability. It is undeniable that it adds value due to its acceptability to consumers concerned about health and environmental issues, in addition to being effective in controlling pests and diseases,” he explains.

The main pest in citrus farming is the psyllid vector of the bacteria that causes greening. The disease, which is incurable, gradually reduces the productivity of the feet. According to a survey carried out in 2021 by Fundecitrus (Citrus Defense Fund), greening is present in 22,37% of orange trees in the Brazilian citrus belt and its incidence increases every year.

Gravena explains that the insect can be controlled by applying the fungus Isaria fumosorosea, sold by Koppert under the name Challenger. In tests carried out for the launch of the product, after the tenth day of applying Challenger, under ideal humidity and temperature conditions, we had an average of 80% control in the installed fields. “The bioinsecticide, in addition to having proven effectiveness, does not require a waiting period and reduces the risk of selecting psyllids resistant to chemicals.”

Biological pesticides are a great ally for citrus growers, as they will contribute to the balance of the ecosystem. “For other invasive insects, such as whiteflies, management with the fungus Beauveria bassiana is recommended and for ferrets, with the macrobiological insecticide Trichogramma pretiosum. The fungus Trichoderma harzianum is also used to control soil fungi and nematodes”, advises Gravena.

Tangerine producer Geraldo Killer, from São Pedro do Turvo (SP), uses Pretiobug on his farm. “The release, with drones, is quick and efficient, in addition to bringing balance to the system. With this management, I was able to reduce chemical applications, and thus reduce production costs and damage caused by the action of ferrets in the orchards,” he explains.