Lemon Tree Health & Fruit Growth Diagnostic Kit/Service.

The user has a specific plant (Harvey lemon tree) with a recurring problem (discolored leaves, no fruit growth) despite basic care (watering). This suggests a need for a specialized diagnostic service (e.g., soil testing, pest/disease identification) or a product (e.g., specific nutrient blend for lemon trees, organic pest repellent) tailored to citrus trees in specific climates (Southern Alabama). A detailed guide or course on advanced lemon tree care could also be valuable.