date:Nov 15, 2016
control it thanks to an antagonist (Torymus sinensis). We will have to wait for the two insects to reach an equilibrium, which is already happening in the north.
Nonetheless, problems were not due to the chestnut gall wasp this year, as it was the excessive rain in spring followed by an extremely dry summer that caused most of the damage. In central Italy, the lower production was determined by scarce setting in spring. The same happened in the south. It remains to be seen whether this year wa