Causes of the drying up of crabapple leaves. Methods to prevent and control the drying up of crabapple leaves. Crabapple flowers are widely popular in our country because of their beautiful flowers and unique ornamental value. Recently, many flower friends have reported that their crabapple leaves suddenly dried up and shed light, which is very troublesome. This article will provide you with a detailed analysis of the reasons for the drying up of crabapple leaves and the prevention and control methods, and help you restore the vitality of beautiful crabapple trees. Reasons why crabapple leaves dry and lose light 1. Improper water management Water is the basis of plant growth. The dry and lose light of crabapple leaves is largely due to improper water management. The following conditions may lead to insufficient water: (1) Watering frequency Too high or too low: Too much watering will lead to water accumulation in the soil and lack of oxygen in the roots, which will affect the growth of crabapple; too little watering will lead to soil dryness and the roots cannot absorb enough water.
(2) Improper watering methods: If a spray can is used to directly spray the leaves, the water will evaporate too quickly and the leaves will lose water.
2. Invasion of pests and diseases by pests is one of the important reasons for the drying up of crabapple leaves. The following pests and diseases may cause the leaves to dry out: (1) Red spiders: Red spiders mainly absorb the juice from the leaves, causing the leaves to lose water and gradually dry out.
(2) Powdery mildew: Powdery mildew can cause white powder to appear on the surface of the leaves, and in severe cases, the leaves will dry out.
(3) Aphids: Aphids absorb leaf juice, causing the leaves to lose water and gradually dry out.
3. Begonias like enough sunshine if they lack enough light. If there is insufficient light, the leaves will not be able to undergo photosynthesis, which will cause the leaves to dry out.
4. Soil problems Soil problems such as soil hardening, poor air permeability, and insufficient nutrients may also cause the leaves of crabapple to dry out. Prevention and control methods for drying up and losing light of crabapple leaves 1. Appropriate watering According to the growth habits of crabapple, reasonably adjust the watering frequency. Under normal circumstances, keep the soil slightly moist. When watering, you can use dipping basin method to avoid directly spraying leaves.
2. Strengthen pest control (1) Red spider: After discovering red spider, acaricides can be used to control it.
(2) Powdery mildew: After powdery mildew is discovered, fungicides can be used to control it.
(3) Aphids: After aphids are discovered, pesticides can be used to control them.
3. Increase the light and place the crabapple in a sunny place to ensure that it receives 4-6 hours of direct sunlight every day.
4. Improve the soil and regularly replace the soil for crabapple to ensure soil permeability and nutrient supply. Organic fertilizers can be added to the soil to improve soil fertility.
There are many reasons why the leaves of crabapple dry up and fall out, but as long as we understand the causes and take corresponding prevention and control measures, we can effectively solve this problem. I hope this article can provide help to the majority of flower friends and rejuvenate your crabapple.