How to properly cultivate rhododendrons?

Although the cuckoo likes to be fat, but the thick fat is easy to rot, you should use more dilute alum fertilizer water, cake fat, once a week. On rainy days, change to dry fertilizer, crush the cake fertilizer and spread the noodles on the plate, let it rain, and decompose on its own. Shade in summer, water once a day, and water enough, after which check the potting soil to see dry watering, autumn should be dried to improve cold tolerance. Winter cold protection, every 2 to 3 days, watering, pruning work, according to the tree potential, more than after the flower, rhododendron common diseases and insect pests, there are brown spot disease, red spiders, military insects, etc., should be timely prevention and control.

Pest control is mainly prevention, in winter and spring and winter before the germination of new shoots with tolbuzin 600 to 800 times liquid or the same amount of Bordeaux liquid spray pots, pot soil and plants after 2 to 3 new shoot germination with 50% wet carbendazim 600 times liquid spraying, once a week spray three times in a row, the rest, in the middle of summer. Red spiders that are prone to occur can be sprayed with a dichlorvos emulsion 2,000 times.