The revegetation of landslide areas and erosion zones using site-adapted species was also part of Weinzierl's work, pioneering solutions to problems that are more relevant than ever a hundred years later. The First World War brought these successful approaches to an end.

After the Second World War, the previously common production of landrace seeds also came to a standstill. Following the successful breeding of varieties for forage crops, a comprehensive program for breeding grasses and legumes for use in seed mixtures for permanent grassland began in Gumpenstein 15 years ago. Furthermore, a program for the production of seeds of alpine and subalpine ecotypes for erosion control and landscaping was launched.

As a result of these efforts, a variety of orchardgrass has already been launched that sets new standards, particularly in terms of quality. Other varieties of yellow oat grass, perennial ryegrass, hybrid ryegrass, crested dog's-tail, red fescue, and bird's-foot trefoil are already largely used in high-quality seed mixtures. Furthermore, in recent years, a range of 18 subalpine and alpine grasses, legumes, and herbs has been selected for use in revegetation at high altitudes.

An important part of the work also involved supporting and advising seed producers. At three centers, Gumpenstein varieties are propagated on an area of ​​more than 600 hectares, with a rapidly increasing propagation area. The production of site-appropriate ecotypes is already carried out on more than 80 hectares, and the seed is used in special seed mixtures. Varieties from the HBLFA Raumberg-Gumpenstein are used exclusively in ÖAG quality mixtures. These ÖAG mixtures represent a privately regulated quality standard, developed in cooperation between the HBLFA Raumberg-Gumpenstein, research institutions, trade organizations, and practitioners. Already, 40% of the total tonnage for grassland is sold by four different seed companies in this quality range.