What causes zucchini leaves to turn pale green?

Pale green zucchini leaves can be caused by several factors, including nutrient deficiencies, particularly nitrogen or magnesium. Environmental stress, such as insufficient sunlight, irregular watering, or extreme temperatures, can also lead to discoloration. Additionally, pests or diseases, such as powdery mildew or aphid infestations, may contribute to the fading color of the leaves. Regular monitoring and proper care can help address these issues.