The Emperor gum moth can not feed so it will not be harmful if it's mouth parts are to weak to even consume food!
they are very harmful.
If you need help I recommend you type in the specific question you need help with
The emperor moth caterpillar eats from plants while in the caterpillar stage. When it turns into the moth it will feed off of Heather and blackthorn.
luna moth's are not helpful
it can be helpful or harmful
sometimes they are helpful and harmful.
Sandpaper is both helpful and harmful.
Atlas moths are very helpful, they play an important role in commerce. Atlas moths are used for the brown strands of silk they excrete and in places like Taiwan, their cocoons are used to make purses.
they are helpful not harmful to plants
It can be, for example, Emperor Butterfly or Emperor Moth.
helpful
helpful