Early blight and Septoria leaf spot are the most common fungal diseases of tomato in Kentucky. Often occurring together, these diseases can significantly reduce yields during seasons with humid, wet weather. This newly released publication was created to assist commercial…

Dothistroma needle blight afflicts some pine species commonly planted in Kentucky landscapes, particularly Austrian and Mugo pines. This disease results in brown needles, which may or may not drop from branches, and unsightly trees. This fact sheet covers symptoms, cause,…

Spruce trees, particularly blue spruce (Picea pungens) and Norway spruce (Picea abies), are popular landscape trees in Kentucky. Unfortunately, these trees present problems for homeowners when they show evidence of poor vigor, dieback, or needle drop.  This publication discusses the…

Eastern white pine (Pinus strobus) is a popular conifer in many Kentucky landscapes; however, this species is subject to browning as a result of various environmental and disease problems. In Kentucky, brown needles on white pine are often caused by…

The Plant Disease chapter in the Master Gardener Manual (Figure 1) focuses on those living organisms that cause disease: fungi, water molds, bacteria, viruses, nematodes, phytoplasmas, and parasitic plants. Large, color pictures (Figure 2) that depict selected stages in various…

A variety of mushrooms can be seen in landscape mulch, in lawns, on forest floors, and in open meadows after autumn rains.  For many, there may be a temptation to gather and eat these wild mushrooms or toadstools.  Unfortunately, there…