USE OF FUNGICIDES IN ROOTING COMPOUNDS
The use of fungicides, either as a drench or as additives in rooting compounds, is a very important part of the nursery cycle during propagation. The favorable results obtained through their use can be very decisive to future crop successes or failures. However, the commercial horticulturist should be very careful to realize the fungicides are only a small part of an overall program of nursery sanitation. He should not rely on them to solve all disease problems.
In the book, "The UC System for Producing Healthy Container-Grown Plants," there are two statements that I think are pertinent to fungicide use, and I quote: "Fungi may be suppressed under the controlled condition of the seed bed or flat only to appear again when the plant is in the pot, the five gallon can, or in the largely uncontrollable environment of the commercial or homeplanting. It is important that the stock produced be not merely disease-free — that is, healthy appearing — but that it be pathogen-free as well."
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