Author: admin
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…
Bacterial Blight
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Blueberry Leaf Rust
Blueberry Leaf Rust (Naohidemyces vaccinia) Symptoms: Appear in late summer. Brown spots on the upper surface of leaves. Powdery orange-yellow pustules on the underside…
Anthracnose
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Alternaria Fruit Rot
Alternaria Leaf Spot and Fruit Rot (Alternaria spp.) Symptoms: Leaf spot symptoms appear from March to May. Leaf spots are 1-5 mm wide, grey…
Caterpillars – Leaf Feeding
Bruce Spanworm and Winter Moth (Operophtera bruceata & O. brumata) Damage: Caterpillars feed in early spring on flower clusters, green berries and leaves. Insect:…
Caterpillars – Tent Forming
Forest and Western Tent Caterpillars (Malacosoma disstria & M. californicum) Damage: Fully enclosed tents or silken mats are built from May to June by…