I planted a Chaenomeles superba "Cameo" a few weeks ago in a bed alongside a troubled Viburnum (since removed and returned). After a week away from home, I returned to find my new Quince has yellowed leaves with spots on the underside. Is this likely fungal? What could I do that would be environmentally benign? As well, I'm wondering if I should be treating the soil in that stretch of bed? I feel cursed! First my Ribes got a really bad case of aphids and dying leaves, then the Viburnum that was ill from the start, and now my Quince... Boondoggle
