The growing trees, the leaves, are always leafed out, which has caused great headaches to many florists, and this period summarizes the cause of the fall of leaves。
One, too much water
Too much water and too often, combined with poor ventilation, causes the roots of the rich trees to smother and the staves to rot. This is one of the most important reasons for the yellow leaves of the rich trees and the leaves of the leaves, many of which are watered to death。
The roots of the rich trees are shallow roots, which generally grow only to the upper half of the flower basin, without the main roots, and when the soil accumulates water, the roots and the straw rot, and the leaves are not well grown, yellow falls and eventually the whole body dies。
Solutions: there is a great deal of water stored in the growing troughs, which are drought-resistant, and the bouquets that are usually used to raise large bouquets are pottery, which is in poor aerobic and can only be dried up long enough。
Ii. Leaf spots
Leaf spots are a common disease in rich trees, with small white and brown spots occurring at the edge and tip of the leaf, which are increasing and increasing without medication。
Solutions: the leaves will be trimmed and then sprayed with free time, once in three days and three times in a row。
Iii. Frozen cryogenic injuries
The trophies are intolerant and warm in the winter, and if they are maintained in an environment below 10 degrees in the long term, the symptoms of cryogenic thaw are manifested in blackened leaves, fallen leaves and even rotting and death。
Solutions: cut the dead leaves and move to 15-25 degrees for conservation。
Iv. Sunburning
Rich trees don't like the direct sun, so leaves are exposed to yellow and white spots. It likes to scatter light, suitable for a distance of 1 metre from the window, bright living room, etc., which can reach the sun without tan。
The solution is to trim the tans, cover the pelvis or move to the light。
V. Soil sheeting
It is mentioned that the roots of the rich tree are not well developed, so it prefers to defusing the air. Many large rich forest basins are grown on yellow soil, which is too compact to “breath” for a long period of time, and the trees are thickly yellow leaves。
Solutions: large-scale rich forest basins are not easy to exchange for soil, so that surface soils can be lax and ventilated, and organic fertilizers are used regularly to improve the soil; small-scale plant plants can be used to dump directly and replace nutrient soil。
