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Hello, look at your picture is belonging to the leaf edge dryness, there are several reasons:
First, the humidity is not enough.
Reason: If the ambient humidity of the cultivated plant is too low, its leaves are prone to scorching.
Treatment: To increase the humidity quickly, you can put a pot of water next to the plant, or spray some water. Be careful not to water it too much, too much water will harm the plant.
Second, too much fertilization.
Reason: Although plants need fertilizer to grow, if the amount is too large or the concentration is too high, the roots of the plant will be burned out. When there is a problem with the root system of the plant, the leaves will become charred and withered.
Treatment: Water the pot once more often to let the fertilizer lose away. It is also possible to take it out of the pot, replace it with new soil, and cut off the burned-out root system.
3. Insect infestation.
Reason: If there is a pest on the leaves of the plant, it will slowly absorb the nutrients from the leaves, causing the leaves to slowly scorch and wither from the edges. Over time, there may be a phenomenon of leaf loss.
Treatment: Observe the number of insects on the leaves, a small amount can be manually scraped, if the number of insects is relatively large, then it should be sprayed as soon as possible.
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This is because the weather is too hot and the sun is shining. The trees were not watered in time.
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At a glance, you will know that there is a shortage of fertilizer, you buy a pack of compound fertilizer and put it there to communicate, just talk about it.
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There are many reasons for <> cause yellowing of plant leaves, too much light will sunburn the leaves of the plant, too high temperature will cause the plant water to evaporate too quickly, too low temperature will cause frostbite to the plant, too much watering will cause the root rot of the plant, too much water will not grow the plant, too much fertilization will burn the roots of the plant, all of these conditions will cause the leaves of the plant to dry up.
Excessive light is the main cause of leaf dryness, there are many trees that are not tolerant of strong light, in the process of summer breeding, if you do not do the corresponding shading measures, strong light will sunburn the leaves of the plant, resulting in its leaves dry up.
For tree breeding, the right temperature is the key to plant growth, different plants have different heat tolerance and cold tolerance, and the temperature of summer and winter has a greater impact on the plant. Long-term high plants evaporate water too quickly, and long-term low temperatures will cause frostbite to the plants, which will cause the leaves of the plants to dry out.
In the process of cultivating potted plants, reasonable watering is very critical, watering should master the principle of seeing dry and wet, and proper watering can be. If you overwater the potting soil, the roots will rot, and if you are too dehydrated, the plant will not be able to grow properly, and the leaves will dry up.
In addition, improper fertilization will also cause the leaves of the plant to turn yellow, we should choose a thin liquid fertilizer when fertilizing properly, if too much fertilizer or too high a concentration of fertilizer, it will burn the roots of the plant, causing its leaves to dry up.
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There are many possible reasons for poplar trunks to tease the chain of dead leaves:
1.Poplar mite insect pests will cause some poplar leaves to seriously fade green and yellow, and a large number of leaves, covered with gray spots, stop growing, and in severe cases, the leaves will fall off, destroying the nutrient balance of the tree.
2.It is a water-scarce paulownia heat injury, which does not cause a large number of poplar deaths. Since poplars grow faster and need a lot of water, if this is the case, the phenomenon of defoliation is a kind of self-protection, and after the high temperature, if there is a heavy rain, this phenomenon will be alleviated.
3.Unreasonable drug use, drug harm. If it may be damaged by the herbicide of Bisun herb, irrigation as soon as possible can alleviate it.
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When the leaves of the tree wither, it is because the soil lacks moisture, or because there are insects in the roots of the tree, which damage the epidermis of the roots, resulting in the inability to absorb water, and the leaves will wither.
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