Psylla chinensis killing agent with high permeability
A technology of pear psyllid and permeability, applied in the direction of insecticides, biocides, animal repellants, etc., can solve the problems of easy occurrence of drug-resistant pests in insecticidal effects, differences in pest resistance and drug resistance, etc., which is not easy to achieve Drug resistance, no environmental toxicity, good quick effect
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Embodiment 1
[0023] The present embodiment provides a good penetrating agent for killing pear psyllids, including extracts of morning glory seeds, soap alum extracts, crane lice extracts, jackbark extracts, huangpi root extracts, radish seed extracts, and banyan bark extracts. extract, chamaejasme extract, solanum extract and diazinon in the following quantities:
[0024]
[0025]
[0026] Its preparation method: add water to decoct morning glory seeds, soap alum, and crane lice 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 reduces Concentrate under pressure until the relative density is about 1.15, and prepare the medicinal liquid for later use; add water to decoct Qianjinba, huangpigen, radish seed, banyan beard, chamaejasma chamaejasma, and yellow fruit eggplant twice, each time for 1 hour, combine the decoction, filter, Concentrate the filt...
Embodiment 2
[0029] This example verifies the killing rate of the pharmaceutical composition against Psyllium pear 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 psyllids in the three stages of eggs, larvae and adults, and then uses insecticides on the psyllids 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 pear psyllid
[0033]
[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on pear psyllids in the larval state. .
Embodiment 3
[0036] This example verifies the killing rate of the pharmaceutical composition on various pests.
[0037] Select 10,000 pear psyllids, beetles, mole crickets, borer worms, scarabs, scale insects, spodoptera, leafhoppers, pods, and root-knot nematodes, and group them respectively, and use the medicines prepared in Example 1 to make medicines of 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 pear psyllids, 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 pear psyllid.
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