everywhere in Asia
blood
Pollen and nectar
Can rats eat silkworm
mulberry
Yes. They will eat pupae, too, so if some of them pupate, remove them. Likewise, when the pupae hatch into beetles, remove those too as the beetles will also eat the pupae. :P Generally they eat everything you throw at them. I've had mealworms gnaw through their plastic container, so keep an eye on that too.
Mulberry trees
Yes, ladybugs will sometimes eat the larvae and pupae of their own kind.
Tiger moth pupae do not eat anything as they are in a non-feeding stage. They spend this time developing and undergoing metamorphosis within a protective cocoon before emerging as adult moths.
The most favorite tree of the silkworm is the Mulberry tree. There are many different species of the Mulberry tree that silkworms will eat from.
One, Mulberry leaves
Yes, they move up and down the water column to eat and avoid danger.