In the prevention and control of bonsai pests and diseases in the home, the use of pesticides to control flower and tree pests and diseases is easy to pollute the environment. Four methods for safe control of flower and tree pests and diseases are introduced.
First, the rubbing method (1) repeatedly rub the orchid leaves with alcohol, can remove the above scale insects.
(2) Using a cotton ball to eat vinegar, rubbing it on the camellia leaf, killing both the scale insects and re-turning back to the leaves that have been damaged by the scale insects.
(3) The bonsai branches are rotted, and the rotted part of the stump can be scraped off with the iodine-sterilized blade, and then the iodine can be rubbed and rubbed once every 7 to 10 days to prevent further rot. .
Second, the spraying method (1) with 0.5 kg of grass ash with water 2.5 kg, soak for 24 hours, take the filter spray, can kill plum, rose, pomegranate and other above aphids.
(2) Spraying the urea solution with a concentration of 2% every 10 days, even spraying 2 times to 3 times, can kill pests such as aphids and spider mites on the flowers and trees.
(3) Spraying with a concentration of 0.1% baking soda liquid can control powdery mildew of flowers such as rose, chrysanthemum, impatiens, wood hibiscus, and cineraria, and the prevention rate can reach over 80%.
Third, the fertilization method (1) often sprinkle with wood ash, can greatly reduce the incidence of flower gray mold such as peony, tulip, cyclamen, etc., but also play a role in promoting the strong flowering branches and beautiful colors.
(2) When fertilizing the flowers and trees, mix a small amount of silicon fertilizer, and after the flowers are absorbed, the hardness of the epidermal cells can be increased, thereby enhancing the ability of resisting pests.
IV. Injection method Woody flowers are often endangered by dried pests such as beetles, gems, and stupid moths, which can cause the branches to be hollowed out. In order to control this kind of pests, 20% to 20 ml of 20% ammonia water can be injected into the wormholes during the hatching period of the larvae of the pests, before the adults are emerged, and when the larvae are overwintering, then the pupils can be sealed with clay or wax to kill. Larva eggs.
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