Symptoms: the disease is very high incidence. When the humidity is high and the temperature is high, it is easy to get sick. When it is serious, it will cause the stem and leaf part to be covered with a layer of white powder, which will cause the plant to turn yellow and even die.
Prevention and treatment: if it is found that the infected plant needs to be pulled out in time, and good ventilation needs to be paid attention to. When the disease occurs, it can be sprayed with methylthiophane for more than three times to ensure the cure.
Symptoms: the infected part will turn gray brown, covered with a layer of mould, and even cause the whole plant to wither and yellow in serious cases.
Prevention and control: do a good job in prevention and pay attention to ventilation conditions. If the disease, can spray a little Bordeaux liquid prevention and control, spray every 10 days, need to spray 3 times continuously.
Symptoms: the hatchling larvae will bite the leaves, seriously affecting the growth of the plant.
Prevention and control: if the number is still small, you can kill it manually first, or spray the borer pine to eliminate the pest.
Symptoms: it is mainly harmful to the leaves, resulting in gray streaks on the leaves, and in serious cases, it will cause the leaves to curl and dry.
Control: when insect damage leaves, you can use pyrethroid or 40% Omethoate of 1000 times solution.
