Control methods of diseases and insect pests of butterfly flower
Butterfly flowers have many varieties and bright colors, but they are often attacked by diseases and insect pests. The common diseases are soft rot and leaf blight. Let's take a look at the specific prevention and control methods!
Common diseases of butterfly flower
Bacterial soft rot
Symptom
It is mainly caused by European bacteria, which causes the tissue or organs of butterfly flowers to rot, mainly harming plant organs, tubers and stem bases, and so on. During the onset of the disease, the damage is serious, and the soft rot caused by bacteria usually produces indole due to the decomposition of protein glue by miscellaneous bacteria.
Prevention and cure method
1. Disinfect the seedlings
2. The cultivated pots and utensils should be disinfected.
3. The method of cultivation should be suitable.
4. Use drugs for prevention. Can choose agricultural streptomycin, chloramphenicol and other anti-bacteria and other drugs, the concentration does not need to be very high.
Leaf blight
Symptom
The high incidence period of butterfly mosaic leaf blight is from July to October every year, and the incidence of plant leaf blight is more serious. Leaf blight will survive the winter on the diseased leaves of butterfly flowers, and when the temperature is suitable in the following year, it will spread to butterfly flowers through wind and rain.
Prevention and cure method
1. Thoroughly remove the diseased leaves in autumn and concentrate slightly to prevent harm to butterflies in the coming year.
2. Strengthen the cultivation and management of butterfly flowers to control the occurrence of diseases.
3, it can be sprayed every ten days in the areas where the disease is more serious in the growing season, and several consecutive sprays can effectively prevent and cure it.
Common insect pests of butterfly flower
Insect pest
It is often caused by the bite of larvae of night moths, snails and slugs. The roots of butterfly flowers are usually endangered from June to August every year, and the unripe organic fertilizer often induces adults to lay eggs.
Prevention and cure method
It can be sprayed with 40% omethoate EC 1000 times. Or spray with 3% lime water in the evening.
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