Tulip broken color petal disease, also known as tulip white streak disease, occurs in all tulip producing areas, and is one of the important reasons for the degradation of tulip bulbs. Symptoms The disease mainly infects the leaves and corolla of tulips. The disease appears on the infected leaves.Light green or off-white streaks, sometimes forming flowers and leaves. The petals are abnormal, monochromatic flowers...

Symptoms: The mesophyll of the shoots and tender leaves appear green and yellow, and the veins remain green, which means that the leaves form a green network pattern, which gradually increases with the degree of yellowing. Except for the large veins, the whole leaves turn yellow to yellowish white, Leaf tips and leaf edges have withered brown spots. Condition: In alkaline soil, the solubility can be used by plants...

Flowers have rot disease, which can cause plant weakness and poor growth, and death of the whole plant, which seriously threatens the growth of flowers. In recent years, flower farmers have explored some soil methods to prevent rot in practice, and received good results.Compared with the use of chemical pesticides, the effect is easy to obtain, the method is simple and the effect is good...

Using cultivation technology to prevent and control flowers and trees diseases and insect pests is the most economical and basic prevention and control measure. The author now introduces the following 8 common measures for vegetable farmers' reference. Rotation is implemented in flower gardens to dampen perennial seedlings...

Flowers play an important role in beautifying the environment and developing the economy. The types and areas of their planting are increasing year by year, but they are also more and more severely damaged by nematodes. Symptoms of plant nematodes mainly damage Compositae, Primulaceae, Rosaceae, and ImpatiensFlower family, Begonia family and other flowers. This disease damages roots, leaves, flower buds and flowers....

Lagerstroemia is also a kind of landscaping tree that is vulnerable to pests and diseases. The following is a detailed introduction to the occurrence rules and control methods of the main pests of crape myrtle. Powdery mildew is a worldwide disease with a wide range of hosts. An important target of violations. Lagerstroemia powdery mildew is planted in my country...

Jasmine white sclerotium disease is the most serious disease of jasmine. When the disease is severe, the plant will die and the yield will be greatly affected. The symptom onset is mainly at the base of the stem near the ground. The base of the diseased stem is dark brown with white on it.Silky mycelium is mostly radiating, and the edges are especially obvious. In the later stage, a lot of tea grows in the diseased part...

Flower diseases can be roughly divided into four categories: fungal diseases, viral diseases, bacterial diseases and nematode diseases. 1 Fungal diseases and their control. There are mainly more than a dozen common flower fungal diseases, which are now classified according to different control methodsThe class introduction is as follows: ①White powder...