Prevention and cure method of four seasons sea lice

(1) The diseased leaves were found to be removed in time to enhance ventilation.
(2) The soilless culture method is adopted. Soil-based cultivation advocates the application of enzyme-based compost. The potting soil is prepared by using organic soil rich in organic matter or pond mud and river mud.
(3) Conditional soil disinfection, using 40% pentachloro-Fumei double or seed dressing double powder, the amount of each m2 is 8g, mix well with the soil and then use the pot for later use.
(4) In the early stage of the disease, spray 95% green heng 1st boutique 3000 times liquid or 20% methyl chlorpyrifos 1200 times liquid, 50% Liqin Ling WP 1000 times liquid, potassium permanganate 1200 ~ 1300 times liquid.
(5) After the onset, 40% pentachloro-Fumei double or seed dressing double powder plus fine sand should be added into 1:200 times of medicinal soil, 100-150g per plant or pot hole, once every 10~15 days.
(6) Using 0.4-0.45 kg of cultured T. harzianum, adding 50 kg of fine soil, mixing and spreading on the base of the diseased plant can effectively control the spread of the disease. Begonia is sensitive to fungicides, and some new varieties need to be tested before large-area application.