What to Do When Citrus Trees Suffer Flood Damage? A Detailed Guide to the Latest Remedial Measures

Spring has more rainy days, and citrus orchards in low-lying areas and riverside land are highly prone to flooding in spring. Standing water often cannot be drained away in time, and combined with a high groundwater table and high soil moisture content, this can cause root decline, slow growth, and even death. So how should citrus be remedied after flood damage? Follow the editor to learn more about it.

1. Drainage and cleaning

For affected orchards, ditches and channels should be dug promptly to quickly drain away standing water, lower the groundwater table as much as possible, speed up the drying of the surface soil, and reduce root damage. For plants that have been submerged for a relatively long time, part of the branches and leaves should be pruned in time to reduce water evaporation and speed up root recovery, and the mud on the branches and leaves should also be cleaned off to ensure good photosynthesis and promote plant recovery.

2. Proper pruning

For fruit trees knocked over by floodwater, supports should be set up promptly to hold them in place, but note that care should be taken during the operation to avoid causing secondary damage to the remaining roots. For roots exposed by rain erosion, soil should be banked up to cover them, and the tree should be pruned appropriately to reduce leaf evaporation and prevent leaf cells from dying of dehydration due to intensified transpiration.

3. Loosen the soil at the right time

In citrus orchards that have suffered flood damage, even if drainage is timely, soil compaction will still occur afterward, which is extremely unfavorable to root growth and recovery. Therefore, after drainage, choose a sunny day to loosen the soil at the right time, maintain soil permeability, increase the oxygen content around the roots, and prompt the plants to recover as quickly as possible. At the same time, the soil should also be sterilized and disinfected to prevent pests and diseases; lime powder can be broadcast over the whole orchard.

4. Apply topdressing in time

After the tree suffers flood damage, the roots' respiration weakens due to the damage, and at this time the roots' ability to absorb mineral nutrients is reduced; foliar fertilization is then the best way to supplement nutrients. You can choose monopotassium phosphate and products with regulating effects such as amino acids, seaweed acid, and humic acid for foliar topdressing, spraying once every 5-7 days for 2-3 consecutive sprays. After the tree vigor recovers, apply fertilizer to the root zone in time; it is recommended to do this together with loosening the soil, as this can improve fertilizer use efficiency and speed up tree recovery.

The above is an introduction to remedial measures for citrus flood damage. We hope it helps you. To learn more related knowledge, please stay tuned to us.