1. Poly disease: Control watering during the young and tender period of the young seedlings, do not make the soil too damp: When the diseased seedlings were first found, pouring 1 ｛BF｝ sulfate or 200 ~ 400 times more , 50 f BF 森 Daisen ammonium liquid is poured 4 to 8 pounds of potions per square meter.
2. White powder disease: ① Pay attention to ventilation and light transmission; ② less nitrogen fertilizer, more phosphorus and potassium fertilizer; 700 ~ 1000 times with water.
3, root rot: Poch the rotten part of the root system, and then plant it with new soil to increase light and loose soil.
4. Yellow leaf disease: Keep the plant ventilation and light, dry soil, clean up the diseased leaves, dead branches, and concentrate. You can also spray 500 ~ 600 times the Bordeaux liquid or 65 ｛BF｝ Daisen zinc wettable powder once a week in early spring and early autumn.
5. Aphid (greasy worm): ① Spray 40 ｛BF｝ oxidation and fruit or 50 ｛BF｝ [, 1200-1500 times the water: ② a small amount of potted flowers can also spray 70 to 100 times the neutral laundry powder.
6. Red Spider: You can use music or dichlorvos 1500 ~ 2000 times liquid to kill. At the same time, pay attention to increasing air humidity.
7. Sicatin insect (flower lice): ① manually brush the worm body gently before incubation; Spray 40｝ BF 0 oxidation and fruit, 1000 ~ 1500 times against water.
