No. Deer would be more like a "predator" to a plant, not a parasite.
It is a blood sucking parasite.
parasite
The holly
It has a technical name "Parasite".A parasite, such as a tapeworm.
... a parasite.
Cuscuta Parasite Plant Dodder
Because, the animal acts as a host for the parasite. Also, the parasite acts as a guest so it's only right that the animal/plant is called the host.
The plant is a producer and the deer is a consumer.
A deer tick is a carnivore. It feeds on the blood of mammals, birds, and sometimes reptiles.
According to botany the parasite live on live plant. when the plant dies parasite also will dies. but the saprophyte though the plant dies it will live.
1.parasites and predators
One example of a parasite would be the parasitic plant Cuscuta which is a yellow colored climber plant. It produces special kinds of outgrowths on this stem called haustoria. These haustoria penetrate the tissue of the host plant and connects to the vascular tissue. It then absorbs the required nutrients from the host plant.