I just planted my zucchini plants about 10 days ago. My plant leaves are getting all light colored with greyish spots all over the leaves and edges of the leaves. Is this a disease, over watering or what?
Zucchini Diseases or Leaf Problems and Symptoms
Certified GKH Gardening Expert
This could be from a fungus or some types of pest. I recommend treating the plants with neem oil, as it is safe for people and will take care of both the fungus and any pests. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm