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.