Leaves have a raised net-like russetting on upper surface

Jostaberry Leaf Netting


Leaf netting symptom on Josta, a hybrid of black currants x gooseberry.

Jostaberry leaf netting has been observed in the cultivar 'Josta', a black currant by gooseberry hybrid (Ribes x nidigrolaria Bauer). This symptom appears in the spring and may be somewhat transient in the summer. It may occur to a lesser extent in other Ribes species. Transmission of this disease is unknown.

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