I am have trouble next to my Hemlock trees, I own brand new landscape since ultimate year.? My trees do not look healthy they are yellowish and dropping...

My trees do not look healthy they are yellowish and dropping within needles. They are approximately 6-7 ft tall. One out of the 5 planted seem to be alright.
I am looking for a plant name belescheromia...
Answers:    Sometimes they don't make it through the first winter. Your landscaper should enjoy guaranteed them for a year. See if they will replace for free. They may have not be watered enough. Also, could hold pests (adelgid), but probably not causing problem after purely being planted second year.
I hold a pallid, looks approaching fungus. growing...