What to Do If crabapple Burned the Roots
As an excellent courtyard ornamental plant, crabapple often suffers from root burn due to improper fertilization. This article systematically explains emergency measures and scientific pruning methods after root burn, helping you restore the vitality of the plant.
Complete Emergency Process for crabapple Root Burn
Three-Step Emergency Treatment Plan
Stop fertilizing immediately when leaves turn yellow and curl, and loosen the soil along the pot wall with a gardening铲. After removing the pot, cut off the blackened and rotting roots, retaining the healthy white rootlets, and disinfect with a 0.1% potassium permanganate solution for 15 minutes.
New Matrix Configuration Plan
Prepare a mixed matrix of 6:2:2 peat soil + perlite + pine needle soil, with a 3cm layer of ceramsite at the bottom for drainage. Place the pot in a shady and well-ventilated area for 7 days to recover, and use brassinolide to promote root regeneration.
Core Techniques for Pruning crabapple
Four-Season Pruning Schedule
Remove crossing and dead branches before spring germination; retain 2-3 buds for shortening after flowering in summer; thin dense branches in autumn; and perform shaping pruning during the dormant period in winter. Spray carbendazim after each pruning to prevent infection.
Key Operations for Flower Bud Differentiation
Retain the top healthy flower buds during the budding stage and remove the weak lateral buds. After flowering, promptly remove the spent flowers and retain the leaves for photosynthesis. It is recommended to use Japanese ARS pruning shears to ensure smooth cuts.
Through scientific treatment and systematic pruning, damaged crabapple can recover its growth in 2-3 months. Pay attention to applying thin fertilizer frequently in daily maintenance and use an EC value tester to monitor soil fertility regularly to prevent root burn from recurring.