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Symptoms and treatment of senile flowers downy mildew
Senile flowers, with their long blooming period, bright flowers, and easy maintenance, are deeply loved by many flower enthusiasts. During maintenance, however, senile flowers downy mildew has become a problem for many enthusiasts. This article will introduce the treatment methods for senile flowers downy mildew in detail, helping you to easily deal with this disease.
Senile flowers downy mildew symptoms
Senile flowers downy mildew is mainly characterized by irregular spots on the leaves. The spots are initially light green, then gradually expand and darken in color, with a yellow halo appearing around the lesion. In severe cases, the leaves will gradually wither, and the flowers will also be affected.
Senile flowers downy mildew treatment methods
1. Clean the maintenance environment
Keep indoor ventilation good, avoid excessive humidity, and clean up fallen leaves and diseased leaves in time during maintenance to reduce the breeding of pathogenic bacteria.
2. Drug control
(1) In the early stage of the disease, you can use a 50% carbendazim wettable powder 1000 times liquid or a 70% thiophanate-methyl wettable powder 1000 times liquid for spraying, spraying every 7-10 days, and continuing for 2-3 times.
(2) For plants with severe illness, you can use a 50% chlorothalonil wettable powder 800 times liquid or a 25% prochloraz emulsion 1000 times liquid for root irrigation, root irrigation every 7-10 days, and continuing for 2-3 times.
3. Enhance the plant's disease resistance
(1) Reasonable fertilization to ensure the nutrients needed for plant growth, and apply phosphorus and potassium fertilizers appropriately during the vigorous growth period to improve the plant's disease resistance.
(2) Proper pruning to maintain ventilation and light penetration in the plant, pruning should be done in time to remove diseased leaves and branches to prevent the spread of pathogenic bacteria.
4. Preventive measures
(1) Choose disease-resistant varieties and avoid buying senile flowers with diseases.
(2) When buying senile flowers, carefully check the plant for any abnormal phenomena such as lesions and fallen leaves.
(3) Avoid buying senile flowers from disease areas to prevent the introduction of pathogenic bacteria into your home.
Although senile flowers downy mildew can cause certain problems in maintenance, as long as we take reasonable control measures, we can effectively control the occurrence of the disease. During maintenance, it is necessary to maintain good ventilation and a clean environment, remove diseased leaves and branches in time, and regularly spray fungicides to strengthen the plant's disease resistance and prevent the occurrence of diseases. Believing in the above methods, your senile flowers will surely grow strong and bloom beautiful flowers.
This article references the following authoritative industry reports and data:
"China Flower Market Annual Report"
"Flower Disease Control Technology Manual"
For reference only, specific control methods need to be adjusted according to the actual situation. Wishing you successful maintenance!