- All but one of the following may be used to eliminate Phytophthora from water:
- UV light
- All but one of the following cultural practices will help control Phytophthora diseases:
- removing sick and dying plants
- raking up and disposing of fallen leaves
- treating plants with fungicides as soon as symptoms are apparent
- eliminating standing water from the production areas
- growing plant species or varieties that are resistant to Phytophthora
- The disease triangle consists of 3 factors: a susceptible host, a virulent pathogen, and fungicide management.
- Phytophthora is a problem in nurseries, but only in the
- The single most important cultural practice for controlling Phytophthora disease in the nursery is water management.
- Sanitation makes little difference in the nursery because Phytophthora spores are everywhere.
- Contact fungicides are best used before the pathogen tries to infect the plant.
- Systemic fungicides inhibit germination and/or penetration of spores into plant tissues.
- Reusing pots increases the risk of disease.
- An effective way to control Phytophthora diseases is to
treat plants with fungicides as soon as symptoms become apparent.