Problem: Spider Mites (Rose)
These mites, related to spiders, are major pests of many garden and greenhouse plants. They cause damage by sucking sap from the undersides of leaves. As a result of their feeding, the plant''s green leaf pigment disappears, producing the stippled appearance. Spider mite webbing traps cast-off skins and debris, making the plant messy. Many leaves may drop off. Severely infested plants produce few flowers. Mites are active throughout the growing season but are favored by hot, dry weather (70°F and up). By midsummer, they have built up to tremendous numbers.
Apply an insecticide labeled for this pest, following label directions.