Powdery mildew is a fungal disease that causes a white coating on leaves, stems, and flowers of plants. Powdery mildew attacks beans, peas, lettuce, cucumbers, melons, pumpkins, squash and other plants including many annual and perennial flowers and shrubs. Powdery mildew fungal spores germinate on the dry surface of leaves when humidity is high and […] More
Peppers are tropical plants and can be temperamental–especially the further they grow away from the tropics. They demand warm temperatures—not too cool and not too hot, organically rich soil, and even soil moisture—not too little and not too much. Give peppers these optimal conditions and they will produce until the first frost in autumn. Good […] More
Small yellow spots that appear first on older leaves are a symptom of this fungal blight. These spots gradually enlarge and become dark-colored areas filled with concentric rings. Alternaria leaf blight is particularly problematic for plants in the cabbage and squash families. Strawberries and carrots are also susceptible. When alternaria infects broccoli and cauliflower plants, […] More
Stephen Albert