What to do if the leaves of perfume lemon turn yellow

Causes and solutions for yellowing leaves

Insufficient nutrients

Symptoms: After flowering, the leaves turn yellow and begin to fall off.

Solution: Spray 0.3% potassium dihydrogen phosphate on the leaves and apply fertilizer once every half month during the growing season.

Root rot

Symptoms: Bark rot with a wine lees odor.

Solution: Excessive water in the pot or application of concentrated fertilizer is the main cause of root rot. Adjust the amount of watering or fertilizing according to the specific situation. The treatment method is to scrape off the diseased part together with a small part of healthy tissue nearby with a sharp knife, then apply 200-300 times of thiophanate on the scraped area to accelerate wound healing, and then cover the wound with soil after it heals.

Iron deficiency, nutrient deficiency, yellow flower

Symptoms: Yellowing of leaf flesh is a symptom of nitrogen deficiency, and yellowing of leaf veins is a symptom of iron deficiency.

Solution: Targeted supplementation of fertilizers containing chrysanthemum or iron.

Causes of pests and diseases

Symptoms: The pests can be seen directly.

Solution: Take measures such as manual pest control and spraying medicine.

Normal metabolism

Symptoms: Yellow leaves fall off and new shoots continue to grow.

Solution: Don’t worry too much, just carry out daily maintenance as normal.

Other unexplained symptoms

Cause: It may be due to excessive watering or easy loss of water in the soil.

Solution: Reduce watering, loosen the soil appropriately, and change the pot and soil if necessary.