Non-Chemical Management
- If soil pH issues are suspected, a pH test kit designed for use on soils will provide some information. The most useful of these kits are those which use colored dyes (either the paper strip type or a capsule that is dissolved in water). However, a reputable soil testing lab can provide more accurate and complete information on pH and soil nutrient availability.
- Check proximity of affected plants to newly-poured concrete. New concrete leaches lime into surrounding soils, raising the pH (making it more alkaline).
- Adding sulfur or organic materials, especially conifer needle mulch which is highly acidic, may be beneficial. Work into soil under affected plants carefully to avoid damage to roots. This is a long-term correction and will not show results immediately.
- Apply iron chelate as a foliar treatment to quickly help plants suffering from lime-induced chlorosis. This is a short-term solution and will not correct soil pH issues. Read and follow all label instructions for application of these products.
Select non-chemical management options as your first choice!