Powdery mildew is a common fungal disease that can affect watermelon plants. Here are some symptoms of powdery mildew that you should look out for:
- White Powdery Coating: The most characteristic symptom of powdery mildew is the presence of a white or grayish powdery coating on the leaves, stems, and sometimes fruits of watermelon plants. This coating often starts on the lower leaves and gradually spreads to other parts of the plant.
- Leaf Curling: Infected leaves may exhibit curling or cupping, and they may become distorted or stunted in growth.
- Yellowing Leaves: The leaves may turn yellow, and in severe cases, they may dry out, wither, and eventually die.
- Reduced Plant Vigor: Infected plants may show reduced overall vigor, with slower growth and fewer fruit production. The fruits themselves may also be smaller in size.
- Dark Spots: As the disease progresses, dark spots may appear on the infected leaves, which can further contribute to the decline of the plant’s health.
- Powdery Mildew Pustules: Underneath the powdery coating, you may notice small fungal structures called pustules. These pustules often appear as small black dots on the white powdery surface.
It’s important to note that these symptoms can vary depending on the watermelon variety and the severity of the infection. If you suspect powdery mildew on your watermelon plants, it’s recommended to take action promptly to prevent further spread of the disease.
