Meaning of wagon in Hindi, Hindi Meaning of word wagon, What is meaning of wagon in Hindi
Zinnias are colorful, low-maintenance annuals that prefer warm weather and bright sunlight. Although zinnias are relatively disease-resistant, they are sometimes plagued by diseases that cause brown spots. The brown spots are usually caused by one of three types of leaf spot -- Alternaria leaf spot, bacterial leaf spot and Cercospora leaf spot.
Quick Answer. Black spots on the leaves of hydrangeas are usually caused by a fungal infection named Cercospora hydrangeae. While these blackened spots are mainly an aesthetic issue, the fungus can reduce vigor in the affected hydrangeas and cause premature leaf drop. Continue Reading.