The dressing of the epidermis of potato tubers by using accelerated electron treatment did not allow the elimination of two pathogens under latent or adhesive form found on the skin. Spore bales of powdery scab did not loose their vitality after the treatment. Inoculation of Erwinia chrysanthemi populations before electron treatment on the tubers did not show any difference between the control and the electron-treated tubers.<br><br>The sprout growth was not affected with a low dose rate using 50 or 70 kilovolt and 10 or 15 kilogray. Plant morphology from treated tubers seemed to be correct and the plant growth was normal as well.<br>Variations were obtained in electrophoretic patterns of isoenzymatic systems (Peroxydase and Esterase). These modifications were observed in the first and the second generation following the electron-treatement.<br>No obvious difference was found through histological examination of the sprout area.
Tuta absoluta is one of the most destructive pests of solanaceous crops. Agroscope has developed a statistical model to study the population dynamics of the pest and its parasitoids and allows interventions to be optimally planned.
Swiss vineyards are often small and arranged in a mosaic of separate plots and management practices. Therefore, it can be assumed that spray drift from conventional to organic vineyards occurs regularly. Nevertheless, no pesticide residues are detected in most organic wines.
Nay M.M., Grieder C., Frey L.A., Amdahl H., Radovic J., Jaluvka L., Palmé A., Skøt L., Ruttink T., Kölliker R.
Red clover is one of the most important legumes in European forage production. In a multi-year field trial, researchers tested Europe’s largest collection of different red clover accessions at five European locations.