Mulberry leaves , particularly those of the white mulberry , are ecologically important as the sole food source of the silkworm -LRB- Bombyx mori , named after the mulberry genus Morus -RRB- , the pupa/cocoon of which is used to make silk .

Mulberry leaves , particularly those of the White Mulberry , are also important as food of the silkworm , the cocoon of which is used to make silk .
