Frost damage slightly: The leaves lose their luster and the leaves fall like water loss. At this point, Coptis chinensis should be moved to a place with higher temperature so that it can gradually return to normal. Note that the temperature must not swell after the damage to avoid wilting of the leaves.
Mild cold injury: In addition to sagging leaves, the leaves will produce scald-like cold damage patches. When processing, cut the cold spots on the leaves and move the flowers to a warm place.
Moderate cold injury: Most of the leaves have cold spots, watery spots and chlorosis of the petiole. At this time, the leaf should be cut off with a handle, and the wound should be painted with grass ash or coal ash. Then put it in a warm place and properly control the watering so that it can slowly return to normal.
Severe frost damage: New leaves of twigs are chlorotic, showing patches of water stains, and underground roots are cold and rot. The remedy is to timely excavate the plant, remove the underground part, and cut the victim's stem, apply the wound with grass ash, and store it in a moist, sandy sand. After the spring, cut it. If serious cold damage occurs and the whole plant has lesions, there is little hope of salvaging and consideration should be given to renewing the flowers.
Lettuce
Lettuce (var. Ramosa Hort.) leaf with lettuce, also known as the goose tsai, ma son dish, leafs seed, the compositae lettuce.For annual or biennial herbaceous plants, leaves long obovate, densely into cabbage and round shape, can be eaten raw, crisp and refreshing, slightly sweet.
Lettuce from Europe's Mediterranean coast, by wild species domestication.The ancient greeks and Romans to eat at the earliest.
Lettuce was introduced into China's history is long, southeast coast, especially in big city suburb, the cultivation area of guangdong is more, in recent years, the cultivated area is expanding rapidly, lettuce by hotels, restaurants into ordinary people's table.
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