Shopping Cart
0 item(s) - $0.00

Arborvitae Diseases, Symptoms & Management - Bagworms, Spidermit

Branchlet

 

  • Symptoms

    • The oldest branchlets turn brown in autumn and fall off

 

  • Management

    • Branchlets rather than scale leaves are shed in autumn as a normal part of the plant development

 

Kabatina Twig Blight

 

  • Symptoms

    • Tips of one-year-old branches die and turn brown or ash gray. These remain on the shrub for many months. Larger branches can be invaded and girdled. On the dead tissue where it meets the still-living wood, small, black, pimple-like fungal fruiting structures form. Microscopic examination reveals oval colorless spores.

 

  • Management

    • Prune and destroy infected twigs and branches. Both Kabatina and Phomopsis twig blight can occur on the same plant. Apply mancozeb to protect the foliage. Apply ZeroTol Fungicide Bactericide to help control and eliminate Blight. 

 

Pestalotiopsis Tip Blight

 

  • Symptoms

    • Twig tips turn tan to brown in color and have black pimple-like fungal fruiting structures dotting their surface.

 

  • Management