KR-20260063623-A - Insecticide composition comprising dill oil as an active ingredient

Abstract

The present invention relates to an insecticide composition comprising dill oil as an active ingredient. The insecticide composition of the present invention containing dill oil as an active ingredient possesses an excellent insecticidal effect against micropests that are difficult to control due to drug resistance and intolerance. Unlike synthetic organic insecticides, it is an eco-friendly natural insecticide composition, which reduces side effects such as environmental pollution and ecosystem disturbance, making it useful for insecticide development.

Inventors

• 윤정범
• 이선영

Assignees

• 대한민국(농촌진흥청장)

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. An insecticide composition containing dill oil as an active ingredient.
2. In paragraph 1, The above composition is an insecticide composition that further comprises an emulsifier.
3. In paragraph 2, An insecticide composition in which the above-mentioned emulsifier is a silicone-based nonionic surfactant.
4. In paragraph 2, An insecticide composition in which the mixing ratio of the above dill oil and the above emulsifier is a volume ratio of 4:3.
5. In paragraph 1, The above composition is an insecticide composition intended for micropests.
6. In paragraph 5, An insecticide composition in which the above micropests are one or more selected from the group consisting of western flower thrips, Taiwanese thrips, cotton aphid, peach aphid, spotted mite, and root mite.
7. In paragraph 6, The above composition is an insecticide composition that targets all of the yellow flower thrips, Taiwan thrips, cotton aphids, peach aphids, spotted mites, and root mites.
8. A pesticide method comprising the step of treating pests with a pesticide composition containing dill oil as an active ingredient.
9. In paragraph 8, A pest control method comprising the above composition further including an emulsifier.
10. In Paragraph 9, The above emulsifier is a silicone-based nonionic surfactant, in a pest control method.
11. In Paragraph 9, An insecticidal method in which the mixing ratio of the above dill oil and the above emulsifier is a volume ratio of 4:3.
12. In paragraph 8, A method of killing pests in which the above pests are microscopic pests.
13. In Paragraph 12, A method of killing insecticides in which the above micropests are one or more selected from the group consisting of western flower thrips, Taiwanese thrips, cotton aphid, peach aphid, spotted mite, and root mite.
14. In Paragraph 13, The above method is an insecticidal method that kills all of the yellow flower thrips, Taiwan thrips, cotton aphids, peach aphids, spotted mites, and root mites.
15. (a) a step of extracting dill oil from dill; and (b) a step of mixing an emulsifier into the dill oil; comprising a method for preparing an insecticide composition.
16. In paragraph 15, A method for preparing an insecticide composition, wherein in step (b) above, the emulsifier is a silicone-based nonionic surfactant.
17. In paragraph 15, A method for preparing an insecticide composition, wherein in step (b) above, the dill oil and the emulsifier are mixed in a volume ratio of 4:3.
18. In paragraph 15, A method for manufacturing an insecticide composition, wherein the above composition is intended for micropests.
19. In Paragraph 18, A method for preparing an insecticide composition, wherein the above micropests are one or more selected from the group consisting of western flower thrips, Taiwanese thrips, cotton aphid, peach aphid, spotted mite, and root mite.
20. In Paragraph 19, The above composition is a method for preparing an insecticide composition that targets all of the following: yellow flower thrips, Taiwanese thrips, cotton aphids, peach aphids, spotted mites, and root mites.

Description

Insecticide composition comprising dill oil as an active ingredient The present invention relates to an insecticide composition comprising dill oil as an active ingredient. The indiscriminate and overuse of synthetic organic insecticides, which are used for pest control, causes side effects such as environmental pollution and ecosystem disturbance, including residues in soil and food and toxicity to humans and animals, as well as pesticide resistance, tolerance, and cross-resistance to other insecticides. As a result, the number of usable insecticides is gradually decreasing, and farmers are complaining about the difficulties of pest control, along with growing doubts about the reduced efficacy of the insecticides caused by this. Microscopic pests that damage various crops, such as aphids, thrips, and mites, are difficult to control due to their resistance to pesticides. Their bodies are very small, about 2 mm or less, so they are not visible when they first appear, making it easy to miss the timing for control. They also reproduce rapidly and cause secondary damage by transmitting various plant diseases. Under these circumstances, there is a growing need for the development of natural insecticides that are eco-friendly and effective in controlling micropests. Figure 1 shows the lethality rate after 1 or 3 days of treatment with diluted dill oil on 6 types of micropests (adults, nymphs, and pupae of western flower thrips; adults, nymphs, and pupae of Taiwanese thrips; adult cotton aphid; adult peach aphid; adult spotted spider mite; and adult root mite). Figure 2 shows the lethality after 3 days of treatment with diluted solutions of 7 silicone-based nonionic surfactants (ER-77, S-408, S-806, TDAE5, EU-SPO1, OACE5, DEF-AT600) on 6 types of micropests (adults, nymphs, and pupae of western flower thrips; adults, nymphs, and pupae of Taiwanese thrips; adult cotton aphid; adult peach aphid; adult spotted spider mite; and adult root mite). Figure 3 shows the room temperature properties (layer separation, precipitation, turbidity, etc.) after 3 days of mixing dill oil and an emulsifier (ER-77) in ratios of 1:1 (left), 1:2 (middle), or 4:3 (right). Figure 4 shows the lethality rate after 1 or 3 days of treatment on 6 types of micro-pests (adults, nymphs, and pupae of western flower thrips; adults, nymphs, and pupae of Taiwanese thrips; adult cotton aphid; adult peach aphid; adult spotted spider mite; and adult root mite) with a diluted mixture of dill oil and emulsifier (ER-77) mixed in a ratio of 4:3. Figure 5 shows the lethality rate after 1 or 3 days of treatment with a dill oil and emulsifier (ER-77) mixed insecticide composition or an organic synthetic insecticide on western flower thrips. Figure 6 shows the lethality rate after 1 or 3 days of treatment of spotted mites with a dill oil and emulsifier (ER-77) mixed insecticide composition or an organic synthetic insecticide. The present invention will be explained in more detail below through the following examples. However, these examples are intended to illustrate the invention and the scope of the invention is not limited to these examples. Example 1. Confirmation of the insecticidal effect of dill oil Dill oil was prepared by extracting essential oil from dill ( Anethum graveolens ), mixed with DMSO (Dimethyl Sulfoxide) in a 1:1 volume ratio, and diluted by adding water at a volume 5000 times the volume of the dill oil. The insecticidal effect was investigated by treating six types of micro-pests (adults, nymphs, and pupae of western flower thrips; adult, nymphs, and pupae of Taiwanese thrips; adult cotton aphid; adult peach aphid; adult spider mite; and adult root mite) with the prepared diluted dill oil solution. As a result, 1 day after spraying, all test pests except western flower thrips pupae and Taiwanese thrips nymphs and pupae showed a lethality rate of over 85%, and 3 days after spraying, all test pests showed a lethality rate of over 95% (Fig. 1). Example 2. Selection of Emulsifier and Composition Ratio for Enhancing Dill Oil Insecticidal Effect For seven types of silicone-based nonionic surfactants (ER-77, S-408, S-806, TDAE5, EU-SPO1, OACE5, DEF-AT600), diluted emulsifier solutions prepared by diluting the emulsifiers with water at a volume 5000 times that of the emulsifiers were applied by immersion and spraying to six types of micro-pests (adults, nymphs, and pupae of the western flower thrips; adult, nymphs, and pupae of the Taiwanese thrips; adult cotton aphid; adult peach aphid; adult spider mite; and adult root mite). When the lethality rate was investigated three days after treatment, insecticidal effects were observed in all seven types of emulsifiers, and notably, ER-77 showed lethality rates ranging from 25% to a maximum of 69% (Fig. 2). To select the optimal mixing ratio of dill oil and emulsifier (ER-77) for smooth dissolution of dill oil, the dill oil and emulsifier were mixed in volume ratios of 1:1, 1:2, or 4:3, and the physical