What if the lemon leaves turn yellow?
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.
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What if the leaves of peach trees turn yellow?
There are five reasons why peach leaves turn yellow. The first is that the pruning is too heavy and urea foliar topdressing is needed. If the second disease and insect pest is caused, it is necessary to spray the corresponding chemical. The third is the lack of light, it is necessary to provide sufficient light as far as possible, and appropriate pruning to ensure light transmission. The fourth is drought and waterlogging, which needs to ensure water balance. Fifth, if you hang too many fruits, you need to sparse flowers and fruits.
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What if the leaves of the transport tree turn yellow?
In general, there are four cases in which the leaves of transfer trees turn yellow. First, there is too much fertilizer, so you need to suspend fertilization and wash it with clean water. The second light is not suitable, it is necessary to provide scattered light. The third soil is alkaline. When changing the basin, the soil can be changed and ferrous sulfate is sprayed. The fourth is caused by high temperature and high humidity, which requires cooling, water control and ventilation.
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