ISHS Acta Horticulturae 262: V International Symposium on Rubus & Ribes
CANE VIGOUR CONTROL IN RED RASPBERRIES WITH GLUFOSINATE-AMMONIUM |
| Author: | D. Seipp |
| Abstract:
Cane vigour control and the biennal cropping system are known to have many advantages in red raspberry plantations. In both systems it is necessary to remove the young canes with a herbicide, which must not harm the fruiting canes nor the second flush of young canes. The most effective chemical for this purpose was dinoseb-in-oil, which is no longer available. Therefore other compounds had to be found and tested. Among different chemicals, for example paraquat, deiquat and a liquid cyanamide (Alzodef), only glufosinate-ammonium has turned out to be suitable for this purpose. Trials carried out in the raspberry cultivars Schönemann and Zefa 2 have shown that 1.0 kg a.i./ha glufosinate-ammonium which was applied as a tank mixture together with 10 kg/ha ammonium sulfate gave good results, being as effective as dinoseb-in-oil. Even if the laterals are sprayed with glufosinate-ammonium no harm is done to the fruiting canes. The pure chemical without the surfactant was not as effective. At present little is known on the side effects of glufosinate-ammonium on yield and also little is known about phytosanitary problems. | |
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