The bonsai with the green ball is experiencing yellow leaves that fall off with brown spots. When we first purchased the tree it had tiny mites until we sprayed the tree with Botanical Insect Killer Garden Soap Formula. I have the tree in Miracle-Gro potting mix it grows plants twice as big.
The bonsai tree with the blue ball has experienced whiteish dust on the leaves, and yellowing of the leaves that fall off. The tree was also sprayed with the formula. The tree is also in the same potting mix I have no clue on if they are indoor or outdoor, or the type of bonsai's they are. I live in Maine so we have harsh winters, can someone also give advice on winter care for these trees. Thank you, it will be greatly appreciated