First, dried flowers
Symptoms: The edges of the petal are dry and dry (different from water burnt) and the entire petals are not fresh. Condition analysis: This may be a manifestation of the disease on the flowers. In the case of low light, heaviness occurs, especially after the cloudy days.
Prevention and control countermeasures: thiophanate-methyl or big or health-care agents can be sprayed to reduce the occurrence of diseases.
Second, water burnt flower
Symptoms: Water rot appears from the edge of the petal. In severe cases, the petals show symptoms of dripping, sometimes odor, and sometimes no white mold.
Prevention and control measures: Bacterial soft rot may be sprayed with streptomycin, neomycin and foliar sprays, and may also be sprayed with copper preparations such as chlorpyrifos or crown bacillus. Flower rot and Bacillus diseases can be sprayed with foliar sprays such as Kelu, Kejia, Anke, Lei Duomi, etc., or some of the medicaments can be added to the anthers.
Third, the head rot
Symptoms: Black rots on the stigma of flowers, accompanied by flower rot.
Prevention and control measures: Foliar can be sprayed with foliar fertilizers containing boron, calcium and other elements, such as green Fenway No. 3 or No. 2, cap calcium, calcium nitrate, etc., but also can be used for flushing some calcium fertilizers such as Norwegian calcium nitrate. Must pay attention to raising the roots, enhance the absorption capacity of the root system, you can increase the application of humic acid, microbial fertilizers, can also be rapid absorption of flushing, or with thiophanate-methyl, hymexazol, B-aluminum manganese zinc, etc. After the seedlings are added, rooting agent is applied to irrigate the roots and 0.25 kg per plant
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