Non-Chemical Management
- Adjust soil pH to 4.5-6.0. Addition of sulfur or organic matter, especially conifer needle mulch, which is highly acidic, may be beneficial. Work soil under plant carefully to avoid damage to the shallow root system.
- Use iron chelate, either as a soil treatment or by foliar feeding, to quickly help chlorotic plants. Read and follow all label instructions.
- Check plant's proximity to newly poured concrete. New concrete leaches lime into the surrounding soil, raising the pH.
Select non-chemical management options as your first choice!
