Heavy clay soils, areas that flood and sites where runoff water is a problem typically create root rot problems. Plant junipers in raised beds, except in deep sandy soils. Avoid varieties that are the most susceptible to root rot. Chemical control using fungicides should be considered only as a last resort in the landscape. Once the symptoms of root rot are evident, chemical control is often ineffective.
Fungicides containing mefenoxam are available for use by homeowners.
Apply all chemicals according to directions on the label. Damage to plants results from feeding by the caterpillar, which causes loss of leaves. Mild infestations of this pest slow the growth of junipers. Heavy infestations can kill a plant. The adult female is yellow and appears almost maggot-like.