Using pesticides to prevent flower and tree diseases and insect pests is easy to pollute the environment. Now we will introduce four methods to prevent and control flower and plant diseases and insect pests. First, the spray method (1) with 0.5 kg of plant ash mixed with 2.5 kg, soaked for 24 hours, take the filter spray, can kill plum blossom, Chinese rose, pomegranate tree and other aphids above. (2) Spraying with a baking soda liquid with a concentration of 0.1% can prevent powdery mildew in roses, chrysanthemums, impatiens, hibiscus, cineraria and other flowers. The control rate can reach more than 80%. (3) The urea solution with a concentration of 2% is sprayed once every 10 days and sprayed twice to three times to kill locusts, red spiders and other pests on flowers and trees. Second, rubbing method (1) with cotton balls dipped in vinegar, gently rub on the camellia leaves, both to kill the scale insects, but also to have been damaged by the scale insects to return to the green leaves. (2) Repeatedly rubbing the orchid leaves with alcohol can remove the above scale insects. (3) Bonsai bonsai branches are rotted and can be scraped off by rotting on the stump with an iodine-disinfected blade, then rubbed with iodine, and rubbed again once every 7 days to 10 days to prevent further rot. . Third, the fertilization method (1) when the fertilizer is mixed with a small amount of silicon fertilizer, flowers absorb, can increase the rigidity of its epidermal cells, thereby enhancing the ability of pest resistance. (2) Frequently weeding wood ash can significantly reduce the incidence of gray mold in flowers such as peony, tulip, and cyclamen, and also play a role in stimulating flower buds and bright colors. Fourth, the injection method woody flowers are often endangered by stem borers, such as longhorn beetles, giardworms, and woodworm moths. Severe branches can be hollowed out. In order to prevent and control such insect pests, 20 ml to 20 ml of 20% ammonia in water can be injected into the wormholes at the hatching stage of the larvae, before emergence of the adult larvae, and overwintering of the larvae. Then, the wormholes can be sealed with clay or wax to kill. Larvae eggs.
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