Prove di coltivazione protetta del kiwi: prime osservazioni in Piemonte

A defense strategy against PSA is to modify the environmental conditions and making them hostile for bacteria. A possibility, in this way, is a closed environment obtained by using plastic coverings over orchards. Moisture is required for Psa multiplication and vine infection; the plastic canopies minimize leaf moisture and prevent rainfall from spreading bacteria within the canopy. Additional benefits include protection from wind and frost, environmental conditions that can result in physical damage to the vines. Trials ongoing in Piedmont on kiwifruit cv Jingtao, have been promising, the canopies seem to be effective in reducing the progression of Psa symptoms and the organoleptic traits haven’t been negatively affected. The plastic roof system did not affected neither the quality nor the fruit setting of protected kiwis and caused a slightly early ripening.