It is common practice to assess the damage caused by Dryocosmus kuriphilus by considering the abundance of galls alone rather than by also taking related branch corruption into consideration. We propose a composite damage index that takes into account the most important branch features, thus enabling more realistic damage assessment.
Gehring, E., Bellosi, B., Quacchia, A., Conedera, M. Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa. J. Vis. Exp. (138), e57564, doi:10.3791/57564 (2018).