MySheen

What if the lemon leaves turn yellow?

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, There are four main situations in which lemon leaves turn yellow. The first is iron deficiency or nitrogen deficiency, which needs targeted supplement. Second, insufficient nutrition, need to supplement fertilizer, generally need to be sprayed. The decay of the third root system is most likely caused by stagnant water. It is necessary to clean up the rotten roots and cover the soil after the wound heals. Fourth, there are insect pests, the corresponding chemicals need to be sprayed.

1. Supplement iron or nitrogen

(1) specific reason: the deficiency of these two elements may make the leaves yellowing, but the parts are different. If iron is deficient, the mesophyll will turn yellow; if nitrogen is deficient, its veins will turn yellow. Therefore, which element should be supplemented can be determined according to different symptoms.

(2) solution: observe the yellowing parts of the leaves and supplement the corresponding elements.

2. Supplement fertilizer

(1) specific reason: this kind of situation occurs more frequently when it is in blossom. The nutrition needed at this time is already much, if you do not pay attention to supplement, it is likely to lead to yellowing of leaves.

(2) solution: some fertilizers, such as potassium dihydrogen phosphate solution, should be sprayed. It contains not only basic elements such as nitrogen, phosphorus and potassium, but also some trace elements. Spray on the leaves once every half a month.

3. Deal with rotten roots

(1) specific reason: if the root is rotten, it may also make the leaves yellow. The most likely cause of root rot is too much water or too much fertilizer.

(2) solution: the rotten part and a small part around it should be scraped off with a knife and smeared with topiramate. Wait until the incision is fully restored before covering the soil. After that, we should pay attention to not watering too much, and do not apply fertilizer with too high concentration.

4. Pest control

(1) specific reason: after the occurrence of insect pests, it may also endanger the leaves and make them yellow.

(2) solution: if the quantity is small, it can be disinfested manually. If the quantity is large, spray the corresponding medicine.

 
0