Leaf blight: the spores of the pathogen spread to the Adiantum by wind and rain, endangering its leaves. At ordinary times, it is necessary to strengthen maintenance, properly reduce air humidity, and pay attention to ventilation. When the disease occurs, Bordeaux liquid, carbendazim and other chemicals need to be sprayed in time for prevention and control. Scale insect: it is a common pest of Adiantum. It is easy to occur in warm, humid and poorly ventilated environment. It is necessary to spray Omethoate emulsion to treat the disease.
I. leaf blight
1. Symptoms: the spores of the pathogen will spread to the Adiantum by wind and rain. At the beginning of the disease, there will be small yellow brown spots on the leaves. In the later stage, the disease spots became bigger and bigger, and gradually fused, leading to leaf wilting.
1. Symptoms: it is a common pest of Adiantum, which is very easy to occur in warm, humid and poorly ventilated environment. When the disease occurs, the leaves will produce white bulges. In the later stage, the leaves will droop and wither, and in serious cases, the whole leaves will become scorched yellow.
2. Control method: when the insect is found, the diseased leaves shall be cut off and destroyed in time. It is necessary to spray Omethoate 1000 times solution to the diseased plant. Spray once every 5-7 days, 2-3 times continuously.
