Importance of applying insecticide to soybean knife

Soybean farming depends on a series of factors to reach its maximum productive potential, among the most important of which are insecticide applications at the beginning of the crop cycle. The most critical time to protect soybeans is when they are starting to emit the knives (stages R3 and R4), preventing the stink bug from causing abortion and damaging quality and productivity.

Considered the main pest of soybeans in Brazil, stink bugs have caused enormous damage to crops. Studies show that only one bed bug per m² in the pod development phase it is capable of causing the loss of 100 kilos of soybeans per hectare (source: Scopel, 2013). The ideal is to apply when a population of half a bed bug per month is observed.², preventing the deposition of eggs and the origin of a new generation of the pest. Furthermore, it is recommended to reapplication after 7 to 10 days to ensure insect control.

The most common species is the brown stink bug (Euschistus heros), mainly in the warmer regions from the North of Paraná to the Central-West, but the green soybean bug (Nezara viridula) and the small green stink bug (Piezodorus guildinii) also cause many headaches for producers. Insects reduce germination potential, cause delayed development, poor pod formation and reduce grain quality.

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The soybean market has been waiting for an effective solution for bed bug control for a long time. The Expedition insecticide, launched by Corteva Agriscience, has a different mode of action to control the insect. “It took nine years of research to develop this solution, an important tool for managing stink bugs in soybean crops. Therefore, we reinforce our positioning with special attention to the protection of the knife”, says the Marketing leader for Insecticides at Corteva Agriscience, Thomas Scott.

Formulated from the new Isoclast molecule and belonging to the new chemical group Sulfoxamines, Expedition's mode of action helps farmers manage resistance. Among the main features of this tool is the shock and residual effect, which protects the crop immediately and for longer. What sets it apart is its effectiveness on both adults and nymphs. It is worth drawing attention to the control of nymphs, as this is the phase in which the greatest damage occurs. The active ingredient in Expedition is already approved in more than 80 countries, such as Canada, Australia, Japan, India, China, Argentina and the European Union.

“In 2020, Brazil regained its position as the largest soybean producer on the planet. Expedition® will assist in the challenges faced by soybean farmers and contribute to the development of soybean cultivation and national agriculture”, adds Thomas Scott.

Good Agricultural Practices

All Corteva technologies have guidance on their correct use, in addition to undergoing rigorous testing before being approved by regulatory bodies. The company also has a robust Good Agricultural Practices program that promotes technical training for producers, agronomists and consultants on weed management, integrated pest management, disease management, application technology and worker safety.