3 Tell-Tale Signs of Boxwood Blight

There are many coarse but less severe disease of Turkish boxwood bush , and all are occasionally mistaken for boxwood blight . learn the following combination of three key symptoms will help you be confident with field diagnoses and differentiate box blight from most other Turkish boxwood problems . Just remember that there can be multiple disease present in any situation .

1. Defoliation

The most obtrusive symptom associated with boxwood blight is defoliation . Unlike other Turkish boxwood fungal diseases , boxwood blight do rapid leafage drop on infected shrubs , leaving whole spare branchlet . You will see piles of yellow to green leaves on the land below defoliated , canker sprig . Other diseases and disorders often leave alone dry , drinking straw - colored leaf confiscate to dead branches .

2. Cankers

The second differentiating symptom is the mien of twig canker . Infected twigs rise distinct char lesions extending along the sprig between node and finally produce spore .

3. Leaf spots

The third symptom is leaf spotting . Rapidly dying leaves may seem greasy and water supply - rob prior to fall , or they may develop circular spots , often with a gloomy ring and orange halo . These leaves are more oblique than they appear . The fungus can produce many thousands of bantam social system calledmicrosclerotiain each infected leaf . These microsclerotia prevail in the leaf litter and land beneath affected plants , attend as the overwintering stage . They can persist for several years , germinating to cause new infections in late seasons even if the plants were removed .

Matthew Borden , DPM , is a industrial plant health consultant specializing in diagnostics and integrated management of landscape painting plant pests and diseases .

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