High-efficiency scale insect killer
A scale insect killing technology, applied in the directions of insecticides, biocides, animal repellants, etc., can solve the problems of insect resistance and drug resistance, and the insecticidal effect is prone to drug-resistant insects, etc. Environmental toxicity, not easy to drug resistance, good safety effect
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Embodiment 1
[0023] This example provides a high-efficiency scale insecticide, including the extracts of Rhizoma chinensis, extracts of hellebore, extracts of hives, extracts of gourd tea, extracts of Qumai, extracts of green bark, extracts of xuejianchou, and extracts of bark , Houttuynia cordata extract and azadirachtin, the components are as follows:
[0024]
[0025]
[0026] Its preparation method: add water to decoct Guanzhong, Veratrum, and honeycomb twice, each time for 2 hours, combine the decoction, add ethanol to filter and concentrate, add 3 times the amount of water, fully stir, refrigerate for 48 hours, filter, and the filtrate is decompressed Concentrate to a relative density of about 1.15, and prepare the liquid medicine for later use; decoct gourd tea, Qumai, Qingpi, Xuejianshou, Qinpi, and Houttuynia cordata with water for two times, each time for 1 hour, combine the decoction, filter, concentrate the filtrate, and put Cool, add ethanol to make the ethanol content 6...
Embodiment 2
[0029] This example verifies the killing rate of the pharmaceutical composition on scale insects compared with common insecticides on the market.
[0030] Select the common insecticides on the market: P. lilacinus water agent, nematicide, special root thread agent, and thiamethoxam insecticide.
[0031] Group according to different insecticides, each group prepares 1000 scale insects in the three stages of eggs, larvae and adults, and then uses insecticides on the scale insects in each stage, and tests each group of insecticides kill rate, as shown in the table below:
[0032] Table 1 The killing effect of insecticides on scale insects
[0033]
[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on scale insects in the larval state, and this product has the best insecticidal effect, and the killing effect is remarkable, even the eggs that are most difficult to kill also have a good killing effect .
Embodiment 3
[0036] This example verifies the killing rate of the pharmaceutical composition on various pests.
[0037] Select 10,000 scarabs, beetles, mole crickets, borer worms, pear psyllids, scale insects, spodoptera, leafhoppers, vetch, and root-knot nematodes, and group them respectively, and use the drugs prepared in Example 1 to make drugs with the same concentration. liquid, spray the pests of each group respectively, and after 1 hour, check the killing rate of various pests, the results are shown in the following table:
[0038] Table 2 The killing effect of the drug on various pests
[0039] group
[0040] As can be seen from the above table, the medicine prepared in Example 1 only has a good killing effect on scale insects, and has a very limited killing effect on other pests. This proves that this product is highly targeted and can only be used For the extermination of scale insects.
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