Seeds and animal feed can be attacked by pathogens just as plants can, thus reducing yields for plant breeders and farmers. One effective method of killing viruses, fungi or bacteria is electron beam treatment. The process was developed in the 1980s by physicist Manfred von Ardenne. At the Dresden Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, a team led by Andrè Weidauer has developed this proven method into a mobile seed treatment unit in recent years.

Chocolate is delicious - but there is literally a dark side to the sweet treat: Cocoa farming is often neither environmentally friendly nor fair. There is criticism of the high water consumption, the frequent clearing of rainforests for new cultivation areas, and child labor on some cocoa plantations. With QOA, the Munich-based start-up NxFoods wants to develop a plant-based chocolate that tastes like the original but does not use cocoa, making it both fair and sustainably produced.

They already exist in selected supermarkets and restaurants: multi-story glass greenhouses in which herbs and lettuce grow in a nutrient solution. This means they can be offered fresh every day without the need for costly transportation. Following Edeka's lead, Rewe now also wants to test resource-saving food production as part of a pilot project in Wiesbaden.

The condition of the forests is worrying: many older trees are suffering from drought, pests and storms, and the consequences of climate change have made the forest more susceptible to fires. Furthermore, only 21% of tree crowns are still intact. The current forest condition report of the Thünen Institute for Forest Ecosystems in Eberswalde once again shows the vulnerability of the forest ecosystem and the urgent need for action.

From offices to classrooms: Air filters have been booming since the outbreak of the pandemic. They can be used to remove virus-laden aerosols from rooms and thus reduce the risk of infection. Ideally, filter materials should also be environmentally friendly. For this reason, researchers from the Zuse community have taken a close look at nonwovens made of bioplastics as filter materials and examined them for filter performance and durability.

Eliminating competing wild plants while minimizing the impact on the ecosystem: that is the promise of a newly developed sensor for use in crop protection. Arable plants are always in competition with wild plants for sunlight, water and nutrients. To maximize yields, farmers therefore control wild plants, mostly with herbicides. But pesticides impair soil fertility, accumulate in bodies of water and contribute to species extinction.

Surviving is more important than growing: This obvious insight has also been anchored in trees by evolution, as an international research team with the participation of the Max Planck Institute (MPI) for Biogeochemistry now reports in the scientific journal "PNAS". According to the findings, the spruce trees studied prefer to keep their stores filled when resources are scarce, and even stop growing to do so.