The product chemistry of plant protection products is a key issue in the benefit-risk evaluation process in registration of pesticides. In our article we present some aspects of pesticide formulation chemistry and testing. The data requirements for registration refer to an internationally harmonized approach under the auspices of FAO and WHO, called FAO and/or WHO Specifications, respectively. Pesticide companies can therefore submit a certain data package on active ingredient and formulation properties in many different countries, as the criteria of properties tested and the corresponding test methodology are generally accepted. The same criteria are used in post-registration market control, where pesticide formulations are tested for compliance with the quality criteria on the basis of which registration has been granted. Product chemistry and market control are therefore effective means to ensure a high quality of pesticides on the market.
Spring J.-L-, Zufferey V., Verdenal T., Reynard J.-S., Lorenzini F., Bourdin G., Blouin A., Carlen C., Jermini M., Morisoli R., Ferretti M.
Five Merlot clones bred in Switzerland are currently being distributed by the certification sector. A multiyear trial conducted by Agroscope in Gudo (Canton of Ticino) has made it possible to compare them with French and Italian reference clones and to highlight their very good performances.
Arbuscular mycorrhizal fungi are important for healthy soils and crops. A pan-European study shows that plant-protection products adversely affect these fungi, reducing their ability to supply plants with phosphorus via their roots.
Birdsfoot trefoil and sainfoin are used in mixtures for perennial hay meadows and for tannin-containing fodder. Agroscope is adding two new cultivars of birdsfoot trefoil to the ‘List of Recommended Varieties of Forage Plants’, whilst there is no change in the case of sainfoin.