Bonsai experts? i have a zelkova bonsai tree... and im not sure if i...

i have a zelkova bonsai tree... and im not sure if i should dampen it each year or so. i looked it up in the internet but not much information is given. also, is it majority if its leaves turn yellow and plunge? thanks for the answers.=)
Waht nature of ants are these?
Answers:    Zelkova is an outdoor tree, and it requests a cold winter to survive. It is also "deciduous" which means it will turn a stumble color and lose it's leaves in the winter. You requirement to water it when the top inch of the soil is dry. If you would similar to complete care instructions, you're greeting to send an email to me at:
wchoat@american-bonsai.com . Also permit me know where you live so I can communicate you how to "winterize" it. You may also want to read the Bonsai Care page of my site:
http://www.american-bonsai.com
Has a sweet smelling scent spray ever attracted...
I would water it similar to any other plant. Moisten the soil, then re-water once the soil have completely dried out. Bonsai trees are small because they are deprived of some environmental (like root space) factors, but I wouldn't deprive them of too much sea.

If your tree is indoors it shouldn't turn completely yellow. The seasonal responses by trees are mostly due to soil warmth. If you don't have any topical buds coming, I might start to worry.