This work was carried out during the two successive seasons of 2014/ 2015 and 2015 / 2016 at Private Farm in Sammnoud, Gharbiyah Governorate, Egypt, to investigate the utilization of some micronutrients (Zn and Mn) and plant extracts [garlic (Allium sativum L) and aloe (Aloe vera)] and their effects on plant growth, yield (fruit essential oil), chemical composition and control against powdery mildew (Erysiphe heraclei) in dill plants. The application of plant extracts with micronutrients showed increased plant growth, yield (fruit and essential oil) and control against powdery mildew compared to plant extracts or micronutrients individually. The highest values of plant growth and yield (fruit and essential oil) and the lowest percentages of powdery mildew incidence and severity resulted from sprayed plants by garlic extract plus Zn and Mn treatment. Thus our study provides the grater results for using garlic extract with micronutrients  by farmers to have better yield  from fruit and essential oil in dill  plants, as well as reduce the incidence of powdery mildew, it is easy available, environmentally safe and cost effective.