|Have two dwarf alberta spruce potted in large urns in front of the house. Ome has started to turn brown at the very top. What should I do to correct this problem. Thanks for your help.
|Answer from NGA
July 12, 2010
|The browning could indicate a population of spidermites or other insects or it might indicate water stress. Carefully inspect your spruces for insects. Spidermites are tiny and hard to detect but they leave webbing between the needles and the branches. Spots on the needles indicate a fungal disease such as needle cast. Poorly draining soils can cause browning needles, as well. Hope you can determine and treat the problem before you lose your spruce.
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