I have several globosa spruce trees which have suddenly begun to develop brown spots in their foliage. Why?
This compact cultivar of Colorado spruce, like the species, is susceptible to spider mites, which may cause browning of needles. Wash your plants weekly with a strong stream of water from your garden hose. If affected areas continue to increase in number or size, consult a professional arborist. (07/07/03) Question: Leaves of my cut-leaf Japanese maple are browning at the edges; what can I do? Answer: Not much. Your plant is exhibiting symptoms of scorch with the onset of characteristic, hot summer weather. Water your tree during dry periods and apply a 2-inch layer of mulch over the root zone. Although unsightly, the condition usually does not affect the long-term health of the plant.
