ISHS Acta Horticulturae 273: V International Workshop on Fireblight
EXPERIMENTATIONS WITH FIRESTOP® 3M IN THE CHEMICAL CONTROL OF FIRE BLIGHT |
| Authors: | M.-N. BRISSET, R. CHARTIER, J.-P. PAULIN, R. CHEVALIER |
| Abstract:
Due to the high variability of fire blight incidence, it is very difficult to assess the efficiency of a chemical under natural conditions of infection. Therefore artificial inoculations both in the orchard and in the greenhouse were used to obtain further informations for the optimization of sprays with FIRESTOP® against fire blight. Results of several experiments are presented : effect of spray volume, concentration of chemical, date of application (as compared to date of inoculation), persistence after spray, efficiency on pear and apple. This study showed that FIRESTOP® applied at the recommended concentration (300 ppm) and the recommended spray volume (1000 l/ha) is very efficient on pear, less efficient on apple, provided that sprays are repeated at intervals. | |
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