Each year, the corn borer (Ostrinia nubilalis) causes a lot of damage to maize plantations. Larvae of Ostrinia nubilalis bite tunnels into the corn cob and stalks. It results in the plants losing resistance to fractures and yield reduction. High content of mycotoxins additionally causes deterioration of quality. While in the center and in the north of Germany Ostrinia nubilalis has one generation per year, in Baden there is a two-generation species. Depending on the region, Ostrinia nubilalis is active from May to September.
Trichogramma brassicae is an effective natural enemy of Ostrinia nubilalis. They have a size of approx. 0.5mm. Trichogramma brassicae is a so called parasitoid of eggs. It means that it lays its eggs into the egg of a host (e.g. in the eggs of Ostrinia nubilalis), and as a result the host is killed during development of the parasitoid inside the host egg. Applying large numbers of Trichogramma in the maize field, a large proportion of corn borer eggs is parasitized by Trichogramma females and thus killed.
Spreading large numbers of Trichogramma at the right time allows parasitizing by females of approx. 0.5 mm in size a very large number of Ostrinia nubilalis eggs, and therefore their neutralization.
To spread Trichogramma two variants of the product are available:
During official inspections of quality, TRICHOSAFE® -cards and TRICHOSAFE® – capsules obtain excellent results in practical and laboratory tests each year.