The most common reasons for strawberry leaves turning brown are inconsistent watering (both overwatering and underwatering), nutrient deficiencies (especially nitrogen, phosphorus, or potassium), pest infestations, fungal or bacterial diseases, and environmental stress such as sudden changes in temperature or excessive heat. Overwatering can cause root rot and yellowing that turns brown, while underwatering causes leaf tips to dry out and brown. Lack of nutrients leads to discoloration, and pests like aphids or spider mites can cause damage resulting in browning leaves. Diseases like leaf blight can also cause brown spots on leaves. Environmental stresses like moving plants suddenly or watering during hot parts of the day can contribute to browning as well. Checking soil moisture, ensuring balanced fertilization, inspecting for pests, and managing environmental conditions can help resolve the issue effectively.