Wait 24 hours after application before you water again. Apply when rain isn't expected for 24 hours. If rain occurs before the application has dried, a small amount of the product may wash off. Since it's impossible to determine how much product washed off, we recommend waiting the minimum recommended interval before reapplying. Conifers and other evergreens do not lose their foliage, but they can be considered dormant after the first killing frost.
Dormancy ends when buds begin to swell or any other evidence of new growth appears in the spring.
Citrus trees are never truly dormant, so you should not apply Volck to citrus at the dormant rate.