- Parasitic on different and often unrelated species of host at different stages of life. Compare with homoecious.More example sentences
- Control of a heteroecious rust will involve two hosts and their proximity to each other.
- The other Chrysomyxa needle rusts are heteroecious and require more than one host to complete their life cycles.
- This allows rapid asexual spread during a single growing season and also enables a heteroecious species to persist on one host, even when its other host is not present.