In northern Vietnam, the emergence of the adult Mo sawfly occurs twice a year, then the emergence during autumn-winter takes place in waves; additionally, Mo sawflies can cause severe damage to leaves, but its quantitative impact has not been studied until recently.
In northern Vietnam, the emergence of the adult Mo sawfly occurs twice a year, then the emergence during autumn-winter takes place in waves; additionally, Mo sawflies can cause severe damage to leaves, but its quantitative impact has not been studied until recently.