The yellowing of the edge of Dripping Guanyin leaves is usually caused by infections. The common diseases are leaf spot and anthracnose. These two diseases will damage the young leaves and cause the leaves to expand from the long spots on the edges to the petioles, making the leaves yellow. Need to use medicaments for treatment. In addition to the above agents, there is also Fusarium wilt, which can cause plants to wilt at a later stage.
After dripping Guanyin, the edges of the leaves will turn yellow. Dripping Guanyin's diseases usually appear on the leaves. The common diseases are leaf spot and anthracnose, both of which extend from the edge of the leaf or the tip of the leaf to the petiole, which will cause the leaf to turn yellow and dry, and eventually wither and fall off. Severe can cause plant death.
If the leaves of Dripping Guanyin have leaf spot disease, small gray patches will appear in the early stage of the leaf, extending from the tip of the leaf to the petiole, and black spots appear in the later stage, and the leaf will begin to turn yellow from the edge. Carbendazim spraying can be used for prevention in the early stage, and plants can be treated with chlorothalonil and zotocin in the later stage.
Anthrax often develops on the young leaves of new branches, growing spots from the tip of the leaves, and dark brown spots on the early leaves with water stains. After a period of time, it will turn yellow-brown, turning yellow from the edge of the leaves. After the diseased leaves turn yellow in the later period, the leaves will fall off a lot. Anthrax should be treated with methyltobutin spray.
There is also blight, which is blight. Fusarium wilt is a fungal and bacterial infection that causes the plant to grow spots on the stem, which will gradually wither the plant and cause plant death in the later stages. If found, cut off the diseased stems in time, spray the chlorothalonil agent on the stem parts that are not diseased, spray once every 7 to 10 days, and use it continuously for 3 to 4 times to eliminate the disease.