Orchid insecticide-- fish rattan essence
Fish vine belongs to the perennial vine of Leguminosae, which grows in South China, Fujian and Taiwan. The cultivated varieties are hairy fish vine (trailing species) and Malay fish vine (straight species). The active ingredient is rotenone, pure white crystal, tasteless and odorless, insoluble in water, easily soluble in benzene, acetone, ether and other solvents. The liquid is brown or brown. It is easy to decompose and fail under the influence of sunlight air, high temperature and alkaline substances.
Fish vine has contact killing, stomach toxicity, but also has a certain repellent effect; it also plays a role in regulating and stimulating the growth of plants. It has a wide insecticidal range, no residue, safe to plants, low toxicity to humans and animals, but high toxicity to fish.
Dosage form: 2.5%, 5% ivy concentrate emulsion, 4% fish rattan powder.
Control objects and usage: 2.5% emulsion plus water 5OO~8OO double liquid spray to control leafhoppers, aphids, red spiders and so on.
Note:
1. Cannot be mixed with alkaline.
2. The diluted solution can be used with you and cannot be stored.
3. When storing chemicals, you should choose shady and dark places to avoid decomposition failure. (Liu Zhongjian)
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Beginners talk about how to distinguish water injury, fat injury, drug injury and drought injury from the leaf surface.
Beginners talk about how to distinguish water injury, fat injury, drug injury and drought injury from the leaf surface.
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A simple "greenhouse" works well.
A simple "greenhouse" works well.
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