WHAT IS 'AND HOW IT DEVELOPED
D. kuriphilus is a small wasp (Vespa) extremely harmful only to the genus Castanea.
The insect makes only one generation a year characterized by a playback mode that does not require the presence of males.
The wasp spends the autumn and winter in the caterpillar stage within the gems, without host plants manifest obvious symptoms of their presence. Then, during the spring, begin to appear the so-called galls.
THE SPREAD
the diffusion occurs through two modes:
-through their flight (spatial diffusion limited)
-through trade man (Large-scale)
The exchange of plant material chestnut, is therefore the most dangerous mode of propagation of the insect.