Know the prevention and control methods of edible fungus diseases, and the treatment methods of "rotten heart" of Magnolia.

Speaking of gentleman orchid, many friends are very familiar, and many friends have the experience of planting gentleman orchid, but have you ever encountered the situation of "bad heart" in the process of planting gentleman orchid? Today, the editor will introduce to you the method of dealing with the "bad heart" of Gentleman.

The heart rot and necrosis of the heart of Cymbidium caused by the inflow of dirty water into the leaves in the high temperature season can be saved by different measures according to the severity of the necrosis of the heart.

If only the central part of the heart leaf is rotten and necrotic, you can move it to a cool place and stop watering for 3 to 5 days to dry the basin soil. Then remove the necrotic part with a sterilized one-sided blade, pay attention to the more sticky wound flow from the cut, tilt the flowerpot to prevent the juice from flowing into the heart leaves again, and at the same time absorb the exudated juice with clean cotton wool, or crush it into powder with oxytetracycline tablets and sprinkle it on the wound, keep the basin soil slightly moist after that, and the leaves will not spray water within 1 to 2 months. Wipe the leaves with clean wet gauze to keep the leaves clean and bring them back to life after it is cool in autumn.

If multiple heart leaves rot from the base of the stem, consider first removing the plant from the flowerpot, shaking off the persistent soil and rinsing it clean. Then thoroughly remove the rotting part of the decayed leaf base or the joint of the leaf and stem, and wipe the rotting heart wound and its surroundings repeatedly with 75% alcohol cotton balls. Or soak and disinfect the part below the rhizome of the treated rotten heart plant with 0.05% to 0.1% potassium permanganate solution for 1 to 2 hours, and then cool for 12 hours.

Then plant the disinfected and dried plants back into the pot with plain soil, and the planting depth is only buried to the root neck. the base of the leaves must be exposed, and the roots must be watered slightly, but not too wet, so as not to cause rotting roots.

Put the treated plants in a cool and semi-shaded place, pay attention to the need to set up a rain shelter, so as to prevent Rain Water from getting into the leaves and cause a broken heart again, the basin soil can be kept slightly wet, it is not suitable to spray water on the leaves, and a wet cloth can be used to wipe off the fine dust attached to the leaves. No matter how serious the rotten heart of the plant is, as long as the hidden bud primordium in the leaf axils of the root-stem junction is not completely destroyed, after 1 to 2 months of careful maintenance, the stem will regenerate new buds. The normal management of water and fertilizer can only be restored when the new bud leaves grow to 6 cm to 8 cm, and the rotten-hearted plants are expected to blossom again after 1 to 2 years.

The above is the method of dealing with the "bad heart" of the orchid introduced by the editor. I hope this article can help you solve this problem and help the orchid grow better.