Causes and Prevention of Orchid Leaf Tip Blackening_Flower Clinic

The withered leaf tip of orchid is one of the most common diseases. It not only damages the integrity of orchid leaves, but also reduces the ornamental value, but also seriously affects the health and growth of orchid plants, and some can also lead to premature senescence and premature death. It is one of the most nerve-racking regrets of Ailan and orchid farmers. There are three causes: the article comes from: http://www.yuhuagu.com

The root growth of ⑴ is blocked.

Most of the leaf tips were scorched, accompanied by varying degrees of hindrance to the growth of orchid roots. However, the reasons for the hindrance of the growth of Langen and the abnormal phenomena are complicated. For example, the excessive acid or alkali of the matrix; the low hydrophobic permeability of the matrix; the composition of the matrix is not suitable for the growth of orchid root; the matrix has entrainment pollution; without waterlogging, drought, freezing, high temperature, fertilizer damage, drug stains, element deficiency, virus diseases and insect pests and so on, it will cause the growth of orchid root to be blocked and leaf tip coke estimation.

The growth of ⑵ tip is blocked.

Once the physiological function of the leaf is abnormal, the growth power of the leaf tip is blocked. The causes of abnormal physiological function of leaves are also complex, and most of them are closely related to the hindrance of root growth.

The varieties and concentrations of fertilizers and pesticides sprayed by ① are not right. For example, fertilizers with too high content of zinc, copper and calcium and pesticides containing copper preparations are easy to produce fertilizer and drug damage when applied under strong light; if the spraying amount is too large, a large amount of residue deposited at the leaf tip will also produce fertilizer and drug damage.

The environmental condition of ② is not suitable. High or low air humidity, high and low temperature, excessive light and no light, poor air circulation and complete occlusion, carbon dioxide and potassium feet, serious air pollution and so on will cause leaf physiological function disorder and lead to leaf tip dry coke.

In addition, when the leaf tip touches the basin wall or matrix for a long time, it is easy to produce abrasions and scratches, as well as the inadvertent interference and infringement of the external boundary force, which can also lead to abnormal physiological function and scorch of the leaf tip.

⑶ infects venereal disease

The leaf tips are often directly damaged by sand spot, brown rust, scorch tip, leaf spot and blight. Other pathogens and viruses can also cause scorch indirectly or directly to damage the leaf tip.

From this point of view, everything in the process of orchid planting and management, if biased and corrected or not dealt with in time, or ineffective measures, may lead to leaf tip scorch. To really prevent the leaf tip from withering and scorching, it requires high maintenance skills and should be very meticulous. As long as beginners study and ask hard, explore its causes, do more experiments, constantly improve the skills of raising orchids and pay attention to them all the time, so as to create an ecological condition suitable for the growth of orchid plants, can they really prevent their scorched leaf tips.