Weather Variables Associated with Spore Dispersal of Causing Pine Needle Blight in Northern Spain.

In the last decade, the impact of needle blight fungal pathogens on the health status of forests in northern Spain has marked a turning point in forest production systems based on species. Dothistroma needle blight caused by and , and brown spot needle blight caused by , coexist in these ecosystems. There is a clear dominance of with respect to the other two pathogens and evidence of sexual reproduction in the area.

Dimethyl pyrazol-based nitrification inhibitors effect on nitrifying and denitrifying bacteria to mitigate NO emission.

Nitrous oxide (NO) emissions have been increasing as a result of intensive nitrogen (N) fertilisation. Soil nitrification and denitrification are the main sources of NO, and the use of ammonium-based fertilisers combined with nitrification inhibitors (NIs) could be useful in mitigating NO emissions from agricultural systems. In this work we looked at the NO mitigation capacity of two dimethylpyrazol-based NIs, 3,4-dimethylpyrazole phosphate (DMPP) and 2-(N-3,4-dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture (DMPSA), on soil nitrifying and denitrifying microbial populations under two contrasting soil water contents (40% and 80% soil water filled pore space; WFPS).