Prevention and Control measures of rotten Heart of Magnolia

Cymbidium is native to southern Africa, under trees, so it is afraid of hot and cold-resistant, like semi-shady and humid environment, afraid of strong direct sunlight, the best temperature for growth is between 18-22 ℃, below 5 ℃, above 30 ℃, growth is inhibited. Gentleman orchids like a ventilated environment, like deep, fertile and loose soil, which is suitable for indoor cultivation. So what are the prevention and control measures for the emergence of bad heart in Gentleman?

Symptoms: after flowering, due to improper treatment of flowers, it is easy to cause heart rot of the plant: in the high temperature season, dirty water flows into the leaves and causes the heart leaf rot and necrosis of the orchid plant: the fertilizer is not fully ripened, which leads to the heart leaf rot.

The reason: first, after flowering, the withered flower is not properly handled, so that the juice from the broken flower is silted up in the leaves, causing the heart leaves to rot. Second, in the hot season, when watering, let dirty water flow into the leaves to cause a bad heart. Third, improper fertilization, the unripe organic fertilizer damages the growing point in the heart leaves and causes rotten heart.

Prevention and cure method

1. Due to the rotten heart caused by improper handling of the flower, it should be noted that there is a short growth standstill period after the end of the flowering period. You should reduce watering, keep it slightly moist, cut off the crippled flower, absorb the juice from it with clean toilet paper or cotton wool in time, and do not pour water into the leaves during the whole process of withering and withering to the new leaves.

2. the rotten heart caused by dirty water, remove the plant from the flowerpot, shake off the soil and rinse it clean. Thoroughly remove the rotten part and wipe the wound and its surroundings repeatedly with 75% alcohol tampon. It is good to use plain soil to plant again, the planting depth is only buried to the root and neck, the pot soil is kept slightly wet, put it in a cool half-sun place, to avoid Rain Water drenching into the leaves to cause another rotten heart, no longer give leaves and spray water, you can use a wet cloth to wipe off the dust attached to the leaves. The normal management of water and fertilizer can not be restored until the new bud leaves grow to 5cm~8cm.

3. For the rotten heart caused by subsequent fermentation of unripe organic fertilizer, the rotten plant should be removed, the rotten roots and leaves should be cut off, washed with clean water, and the roots should be soaked in 0.3% potassium permanganate solution for 2 hours. after it is taken out, it is dried in a cool place for 12 hours, and then implanted into the sterilized fresh pot soil, the leaves are expected to sprout again.