Planting Technology Lists
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Ivy leaf spot
Symptoms and pathological changes: in the early stage of the disease, there were small round dark spots on the leaf surface with oily halo. After the expansion, it is black. Some become polygonal, sometimes there are brown deposits around the spot, and occasionally ulcer spots occur on the petiole. The infected leaves do not fall off. The disease overwinters in the diseased tissue.
2018-12-16 -
Clove brown spot
Symptoms and pathological changes: mainly formed brown spots on the leaves, disease spots round, nearly round or irregular, dark brown edge, light brown center, severe brown spots, early defoliation, leaving only a small number of leaves in the whole plant. The pathogen is fungus, Cercospora lilac, the seed is spherical, dark brown, the conidium is fascicled and erect.
2018-12-16 -
Gardenia yellowing disease
Symptoms and pathological changes: chlorosis is an important physiological disease of gardenia. The disease is widely distributed and is common in the north of the Yangtze River. The disease mainly occurs in the leaves, starting from the young leaves at the top, the leaves fade, the mesophyll between the veins is yellow, and then the veins are also faded, and the edges of the leaves are yellow and white. Last
2018-12-16 -
How to grow Milan flowers
How to grow Milan flowers
2018-12-16 -
How to grow Qingdai
How to grow Qingdai
2018-12-16 -
How to plant aconite
How to plant aconite
2018-12-16 -
Brown spot of gardenia flower
Symptoms and pathological changes: in the early stage, the leaves had light yellow round disease spots, orange halo circles, gradually expanded into round, irregular brown spots, hidden wheel lines, so that the leaves withered. The disease is a fungal disease, which is caused by the infection of Chaetomium pericardium. The pathogen overwintered mainly by hyphae in diseased leaves.
2018-12-16 -
Leaf spot of eight Immortals
Symptoms and pathological changes: Baxian mosaic spot is mainly distributed in Sichuan, Henan, Guangdong, Taiwan, Jilin, Shanghai, Zhejiang, Hunan and other places. The disease mainly occurs on the leaves, the leaf spot is a light yellowish brown watery spot at first, and then expands into a circle, nearly round, 2mm in diameter.
2018-12-16 -
Botrytis cinerea
Symptoms and pathological changes: Botrytis cinerea is called leaf mold. The main damage to leaves was from late April to early May, and the peak period was in the early and middle of August. From July to August, there is much rainfall and high humidity, which is beneficial to the spread of diseases. The disease is more serious in the courtyard where the planting is too dense and the cultivation management is poor. After suffering from frost injury
2018-12-16 -
How to control cyclamen diseases and insect pests
(1) root knot nematode disease. The nematode invades the root of the seedling and grows many nodules large and small on the main root and lateral root. The nematode sucks the juice in the tumor, causing the fine root to be swollen and rot, and the aboveground part withered. Control method: disinfect the soil before ① planting, stir-fry the soil in an iron pan for 40 minutes.
2018-12-16