What if the azaleas lose their leaves?

What if the azaleas lose their leaves? What caused the rhododendron to lose its leaves? Please also know the netizens to help introduce the farm network sorted out the rhododendron leaves of the six reasons and solutions, the following detailed list for netizens' reference. First, improper selection of cultivation soil: rhododendron has slender roots and likes acidic plants with loose and breathable, rich humus and PH value of 5-6.5. Alkaline plants or clay containing limestone can easily cause root suffocation and rot, resulting in the death of fallen leaves. Solution: replace the cultivated soil, preferably with a PH value between 5 and 6.5. Or drop a few drops of vinegar into the water during watering and then water it. Second, lack of light: Azalea is a semi-negative flower, which is maintained outdoors in spring, summer and autumn, with 70% shade and 80% shade to prevent young leaves from being burned by strong light. In winter, the indoor maintenance without direct light can not be more than a week, otherwise, the leaves can not carry out normal photosynthesis for a long time, the nutrition is exhausted, the plant appears protective reaction, and the "detachment" occurs at the junction of petiole and leaf. If you touch the branches or leaves a little, the leaves will fall, and the greater the humidity of the plant, the heavier the fallen leaves. Solution: regularly move the azaleas outside to bask in the sun. Third, the temperature is too low or too high: Azalea likes to be cool and afraid of stewing, and the suitable temperature is between 15-25 ℃, not lower than 3-5 ℃ in winter and not more than 30 ℃ in summer. Therefore, the prevention of high temperature in summer is the key to the success or failure of rhododendron cultivation. Solution: raise azaleas indoors. Or cover the sunshade net in summer to cool down. Fourth, the humidity is too low or too high: azaleas like to be moist and afraid of stagnant water, and the air humidity of its cultivation environment should be controlled at about 75%. Too low humidity will affect the normal development of leaves and buds. Solution: the humidity of plant materials should adhere to the principle of "no dry, no watering". In the rainy season, it is necessary to avoid rain and prevent stagnant water at the roots from causing fallen leaves. Reason 5, lack of fertilizer: now raise azaleas in a large area, generally use "slow-release" granular fertilizer, apply once a year, other time appropriate spraying foliar fertilizer. Solution: if there are iron deficiency symptoms of yellow leaves and green veins, it can be treated by pouring alum, fertilizer and water or spraying ferrous sulfate. Reason 6, the occurrence of diseases and insect pests: red spiders, brown spot can cause rhododendron leaves. Solution: spraying triclofenac, carbendazim and tocopherol. Click to get more azaleas planting techniques click to get more flower planting techniques