Natural plant pest control agent and preparation method thereof
A technology of natural plants and insect repellants, applied in the fields of botanical equipment and methods, plant growth regulators, biocides, etc., can solve problems such as affecting human health, adverse crop growth, environmental pollution, etc., and achieve a significant and good insect control effect. Market prospects, easy-to-manufacture effects
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Embodiment 1
[0024] The formula of this embodiment is: 1 kg of tobacco stems and tendons, 1 kg of wormwood ash, 1 kg of straw ash, 0.5 kg of quicklime, and 50 kg of clear water.
[0025] Preparation:
[0026] 1) get the tobacco leaves and pulverize with a pulverizer;
[0027] 2) Add water, stir and mix well, and continue heating at 90°C for 30 minutes;
[0028] 3) cooling and standing for 24 hours;
[0029] 4) The mixture is coarsely filtered using a 50-mesh filter screen to remove filter residues;
[0030] 5) Pour the wormwood ash and straw ash into the filtrate, and after fully stirring, filter through a 100-mesh filter;
[0031] 6) Add unslaked lime to the filtrate, after fully reacting and letting it cool, it can be used.
[0032] Use: Add the prepared insect repellent to the watering can, and spray the leaves and backs of the crops. The spraying time should be carried out in the morning and evening, avoiding high temperature, scorching sun and rainy days, in order to achieve the b...
Embodiment 2
[0034] The formula of this embodiment is: 2 kg of tobacco stems and tobacco tendons, 2 kg of Artemisia annua ash, 2 kg of straw ash, and 50 kg of clear water.
[0035] Preparation:
[0036] In this example, the steps of the production method are roughly the same as those in Example 1, but in step 2), an ultrasonic extractor is used to mix the raw materials evenly at 65°C, and the active substance is extracted for 10 minutes; in step 5), a 200-mesh filter is used net to filter,
[0037] The method of use in this embodiment is the same as that in Embodiment 1, and a sprayer can be used for spreading.
[0038] The natural insect repellant of the present invention selects common materials as raw materials, and has little environmental pollution. When in use, the insect repellant is directly sprayed on the leaves of the plants, and is especially suitable for cash crops such as leafy vegetables and tea trees, and has a good market prospect.
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