Category: Diseases

Phomopsis Canker

Phomopsis Canker (Phomopsis vaccinii). Damage: Individual branches turn reddish-brown, called “flagging”, and die, and leaves may fall soon after Large (5-15 cm), reddish brown,…

Armillaria Root Rot

Armillaria Root Rot. (Armillaria spp.) Damage: Infected bushes have small, pale leaves and die within 1-2 years. At the late stages of disease, entire…

Sooty Blotch

Sooty Blotch Unidentified causal agent Damage: Grey to black blotches form on the surface of green stems and twigs, giving them a sooty appearance.…

Silver Leaf

Silver Leaf (Chondrostereum purpureum). Symptoms: Leaves have a silvery appearance. Infected branches have a brown discoloration in the heartwood. Infected plants die within 1-3…

Root and Crown Rot

Root and Crown Rot (Phytophthora cinnamomi). Damage: Patches of bushes in a field look weak, have small yellow leaves, and few blossoms or berries.…

Mummy Berry

Mummy Berry (Monilinia vaccinii-corymbosi) Symptoms: Individual leaf and flower clusters turn brown and droop. A bluish-grey fuzz is visible on the petiole or flower…

Godronia Canker

Godronia Canker Godronia cassandrae ( Fusicoccum putrefaciens). Damage: Small (2-7cm), reddish brown, oval-shaped lesions develop on one-year-old stems, usually at the base of a…

Crown Gall

Crown Gall (Agrobacterium tumefaciens) Damage: Hard, tumour-like growths are present on the roots, crown, or stems. Individual branches or entire plant may be killed.…

Botrytis Blight and Fruit Rot

Botrytis Blight and Fruit Rot (Botrytis cinerea) Symptoms: Infected twigs turn silvery and brittle. Infected flowers wilt, turn brown and develop a grey fuzzy…

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