In the current nursery stock market, some individual flower and wood traders often use the spurious seedlings that are commonly used to sell them as healthy seedlings. Those who lack the ability to identify diseases and diseases are easily deceived. The identification methods for the appearance of several seedling seedlings and healthy seedlings are described below: Kumquat robust golden orange seedlings have beautiful postures, numerous branches, dense leaves, deep green light on the surface of the leaves, and blue-green leaves on the back, with scattered glands. point. The diseased kumquat seedling leaves curl, white dots on the page, matt, the leaves behind the surface of the skin there are obvious curved insect tracks, or covered with brown or gray-brown dots, or the edges appear focal edge, etc. It is caused by the infestation of bacteria, and there are signs of disease. Camellia robust Camellia leaves thick and hard, dark green above the leaves, there is a thick layer of wax and luster, the leaves below the light green, flat and smooth. Diseased Camellia seedling leaves yellow, lean, sparse or with mildew on leaf surface, or scattered brown dots on the back or branches of leaves, most of them are parasitic seedlings of tea scale insects, or on the foliage Rye spots can be seen on the naked eye and are all caused by tea leaf spot virus infection. Jasmine robust jasmine seedling leaves green, branches with a layer of soft hair, leaves stiff and straight. The diseased jasmine stems have water-stained brown spots. Some leaves have black granules or yellowish-white spots with curly foliage. Some leaves have white moldy leaves with water-stained leaves. Most of the disease caused by the disease. Five-needle pine robust seedling needles green, compact and beautiful plant shape, branches evenly distributed, plant vigorous and upright, the root system revealed the knot, no roots, the trunk is thick and natural bending, dense internode. The diseased seedlings yellow needles, lack of leaves or with spots, pine needles slender, loose, similar to scattered hair, not many roots, with less soil. Plum plum blossom seedlings are slender, green, seedling-free, and the seedlings are purple-brown with vertical stripes and well-developed root systems. The diseased plum leaves and young shoots have brown or dark brown spots. The young leaves are curled and the roots are thin. Some of the young leaves can be seen as white powdery substances. These are infected seedlings infected with the virus. Later, the illness left. Cyclamen cyclamen seedlings are thick and round. Each leaf is supported by a red petiole, which is strong and powerful without falling down. Diseased flowering seedlings have petiole and leaf blade with obvious water-stained softening spots, leaf blade shrinking, leaves soft or drooping. Severe disease even sees lodging. Peony peony robust sturdy, leaflets gray-green, white leaves on the back of each leaf, petiole longer, young shoots are red purple or green. The diseased peony seedlings have a purple-brown, round black spot or black fungus layer. Some rhizomes have white mycelium on the surface and the roots are black.
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