As a result of its thick, thick easy-to-peel rind and flavorful taste, the navel orange (Citrus sinensis”Washington”) is the world’s hottest orange to consume fresh. Though citrus trees drop some older leaves every 18 months could be experiencing a pest, disease or care problem. Spots and Scale Insects Spot is a fungal disease that causes oily, blistery yellow, black or brown spots on the leaves of a citrus tree , sometimes causing the tree to drop its leaves. The disease infects trees in the summer, then reveals symptoms two to 9 weeks later. Scale insect is a citrus pest that forms colonies on twigs and leaves, sometimes causing both fruit and leaves drop. Both greasy spot and scale could be treated with horticultural oil. Thoroughly mix 2 1/2 to 5 tablespoons of horticultural oil per 1 gallon of water and spray on the tree canopy evenly with a pump-up or trigger…
Why Am I Losing Foliage From My Navel Tree?
