Agriculture Reference
In-Depth Information
Treatment.
Use copper-containing fungicides and bactericides care-
fully and according to label directions to avoid excessive accumulation
of copper in the soil under the trees.
Iron (Fe) Excess
Symptoms.
None
Manganese (Mn) Excess
Symptoms.
Symptoms of excess manganese are only seen on 'Red De-
licious' apple in the form of measles-like pimpling of the bark.
Treatment.
Avoid excessive applications of manganese-containing ma-
terials.
Zinc (Zn) Excess
Symptoms.
Excess Zn can trigger symptoms of apparent Cu defi-
ciency.
Treatment.
Avoid excessive applications of zinc-containing materials.
Adapted, in part, from Cornell University tree fruit guidelines and
Garcia, E.
Orchard Nutrition
. University of Vermont Extension.
Soil Testing
As we discussed in earlier chapters, testing the soil is a very important part
of preparing an orchard for planting. Once the trees or bushes are estab-
