DIY Tree Disease Diagnostic & Treatment Kit for Common Issues

The user has a tree browning at the tips, affecting new growth, and is seeking a diagnosis and treatment. This represents a common problem for home gardeners. A DIY kit that includes diagnostic tools (e.g., visual guides, pH test strips), and safe, effective treatments for common tree diseases or nutrient deficiencies (e.g., fungal spray, specific fertilizer blends) would be very useful. The kit could come with an app for identification and step-by-step treatment instructions.