A pesticide composition containing menthone

Abstract

The present invention belongs to the technical field of pesticides, and particularly relates to a pesticide composition containing menthone. A pesticide composition containing menthone, wherein the active ingredient is composed of osthole or eugenol and menthone in combination. In the present invention, osthole or eugenol and menthone are compounded in a certain mass, showing a synergistic effect on a variety of plant pathogenic fungi, which can improve the control effect on plant diseases, providing data support for the effective prevention and control of wheat basal rot, wheat scab, peanut root rot, peanut southern blight and maize scab, and is of great significance for the high-quality and high-yield of crops such as wheat, peanut and maize.

Description

Technical Field

[0001] The present invention belongs to the technical field of pesticides, and particularly relates to a pesticide composition containing menthone. Background Art

[0002] The occurrence of diseases poses a major threat to agricultural production. The use of chemical pesticides plays an important role in preventing and controlling crop diseases and ensuring stable and high yields of agricultural and forestry crops. However, the long-term application of chemical pesticides is likely to cause consequences such as human and livestock poisoning, high residues, and environmental pollution, thus bringing potential hazards to the ecological environment and human health.

[0003] Botanical fungicides refer to agents processed from certain parts of plants with bactericidal and antibacterial activities, or their active ingredients extracted, as well as monomeric substances separated and purified for controlling plant diseases. Botanical fungicides have gradually become a hot topic in the prevention and control of plant diseases due to their unique advantages such as high efficiency, low toxicity, low residues, high selectivity, and little impact on the environment. At present, domestic and foreign scholars have conducted a large number of studies on the prevention and control of fungal diseases by botanical fungicides and found many plant resources with bactericidal effects, which provides an important basis for the research on the prevention and control of diseases using botanical fungicides.

[0004] Currently, there are many botanical fungicides on the market, including ethyllicin, kasugamycin, eugenol, carvacrol, osthole, etc., which have been promoted and applied in the prevention and control of various crop diseases and achieved remarkable control effects. For example, Wang Zhifeng et al. reported that eugenol has strong antifungal effects, and the control effect on tomato late blight can reach 78%; Peng Zhiguo et al. reported that the control effect of 1% osthole on cucumber powdery mildew in greenhouse reached 79.33% in greenhouse; Sun Xuemei et al. used ethyllicin, kasugamycin, ningnanmycin, and zhongshengmycin for root dipping treatment, and the control effects on strawberry leaf spot disease could all reach over 80%; at the same time, the latest research by Zheng Anke et al. showed that 9 tested botanical fungicides such as eugenol, allicin, and osthole have inhibitory effects on Puccinia helianthi Schw., and 0.3% eugenol has the strongest toxicity, with an inhibitory effect as high as over 85%, further indicating that botanical fungicides have strong potential for controlling plant diseases.

[0005] Menthone belongs to monoterpenoid compounds and is widely present in the volatile oils of many plants such as mint, schizonepeta, scutellaria, and pogostemon cablin. And studies have shown that it has antiviral, anti-inflammatory, cholagogic, and permeability-enhancing effects. Currently, menthone and its derivatives are more widely used in medicine, mainly as local anesthetics and protective agents, etc., but there are few reports in the research of plant diseases.

[0006] In previous research, the inventors found that menthone has good antibacterial effects against wheat basal rot, wheat scab, peanut root rot, peanut southern blight, and maize scab, showing good potential for disease prevention and control. To further use menthone for plant disease prevention and control, the inventors conducted a compounding study of menthone with plant-derived fungicides such as magnolol, carvacrol, oregano oil, osthole, eugenol, resveratrol, and allicin. Some of the compound combinations showed strong synergistic effects. The research results provided data support for the effective prevention and control of wheat basal rot, wheat scab, peanut root rot, peanut southern blight, and maize scab, and were of great significance for the high-quality and high-yield of crops such as wheat, peanuts, and maize.

[0007] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art known to those of ordinary skill in the art. Summary of the Invention

[0008] The object of the present invention is to provide a pesticidal composition containing menthone, which can effectively inhibit the growth of pathogenic bacteria such as wheat basal rot, wheat scab, peanut root rot, peanut southern blight, and maize scab, effectively prevent and control various plant fungal diseases, and is of great significance for the high-quality and high-yield of crops such as wheat, peanuts, and maize.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A pesticidal composition containing menthone, the active ingredient of which is compounded by osthole or eugenol and menthone.

[0011] Preferably, the mass ratio of osthole to menthone is 1-9:9-1.

[0012] Preferably, the mass ratio of eugenol to menthone is 1-9:9-1.

[0013] The present invention also provides the use of the pesticidal composition containing menthone in the prevention and control of fungal diseases of crops.

[0014] Preferably, the fungal diseases of crops include wheat basal rot, wheat scab, peanut root rot, peanut southern blight, and maize scab.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention combines osthole or eugenol with menthone in a certain mass, showing a synergistic effect on various pathogenic fungi of plant diseases, which can improve the control effect on plant diseases, provide data support for the effective prevention and control of wheat basal rot, wheat scab, peanut root rot, peanut southern blight and maize scab, and is of great significance for the high-quality and high-yield of crops such as wheat, peanut and maize. Detailed implementation mode

[0017] The following clearly and completely describes the technical solution of this invention patent.

[0018] Example

[0019] 1. Test strains

[0020] Table 1 Test strains

[0021]

[0022] 2. Test agents

[0023] 98% osthole technical (Shanghai Yuanye Bio-Technology Co., Ltd.), 98.5% eugenol technical (Shanghai Yuanye Bio-Technology Co., Ltd.), 99% menthone technical (Wuhan Rongcan Biotechnology Co., Ltd.).

[0024] After the test agents are dissolved, they are diluted into single-agent mother liquors with 0.1% Tween-80 aqueous solution. Multiple groups of ratios are set, and 5 mass concentration gradients are set for each single-agent mother liquor and the mixed agents of ratios according to the equal ratio method.

[0025] 3. Test method

[0026] Add 9 mL of pre-melted PDA medium into a sterile conical flask. Quantitatively absorb 1 mL of the liquid medicine from low concentration to high concentration in turn and add them into the above conical flasks. After shaking well, pour them into a petri dish with a diameter of 9 cm to make drug-containing plates with corresponding concentrations. At the same time, set a treatment without the agent as a blank control, and 10 plates are treated with the liquid medicine at each mass concentration. Use a punch with a diameter of 5 mm to cut out a mycelial disc at the edge of the test strain colony and inoculate it in the center of the drug-containing plate and the blank control plate. Cover the petri dish lid and place it in an incubator at 25 °C for cultivation. When the colony diameter of the blank control grows to about 2 / 3 of the petri dish diameter, measure the colony diameter by the cross method and calculate the mycelial growth inhibition rate of different treatments.

[0027]

[0028] 4. Data analysis

[0029] Use DPS software for data statistical analysis to obtain the virulence regression equation and the virulence EC of the agent to the target pathogen 50Value, and calculate the co-toxicity coefficient (CTC) according to Sun Yunpei's method.

[0030]

[0031] In the above formula: ATI - the measured toxicity index of the mixture; S - the EC of the standard agent 50 , with the unit of mg / L; M - the EC of the mixture 50 , with the unit of mg / L.

[0032] TTI = TI A ×P A +TI B ×P B

[0033] In the above formula: TTI - the theoretical toxicological index of the mixture; TI A - the toxicity index of agent A; P A - the percentage content of agent A in the mixture, with the unit of percentage (%) ; TI B - the toxicity index of agent B; P B - the percentage content of agent B in the mixture, with the unit of percentage (%).

[0034]

[0035] In the above formula: CTC - co-toxicity coefficient; ATI - measured toxicity index of the mixture; TTI - theoretical toxicity index of the mixture.

[0036] 5. Determination results

[0037] Evaluate the synergistic effect of the agent according to the calculated co-toxicity coefficient (CTC). When CTC ≤ 80, it is antagonistic effect; when 80 < CTC < 120, it is additive effect; when CTC ≥ 120, it is synergistic effect. The results are shown in Table 2-17.

[0038] Table 2 Indoor bioactivity determination of osthole and menthone against Sclerotium rolfsii

[0039] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 24.8923 100.0000 -- -- Menthone 59.6386 41.7386 -- -- Osthole 9 : Menthone 1 20.1431 123.5773 94.1739 131.2225 Osthole 8 : Menthone 2 21.8283 114.0368 88.3477 129.0773 Osthole 7 : Menthone 3 22.2765 111.7424 82.5216 135.4100 Osthole 6 : Menthone 4 21.7146 114.6339 76.6954 149.4664 Osthole 5 : Menthone 5 23.3722 106.5039 70.8693 150.2821 Osthole 4 : Menthone 6 38.7564 64.2276 65.0431 98.7461 Osthole 3 : Menthone 7 34.4018 72.3576 59.2170 122.1905 Osthole 2 : Menthone 8 44.3738 56.0968 53.3909 105.0683 Osthole 1 : Menthone 9 57.7690 43.0894 47.5647 90.5910

[0040] As can be seen from Table 2, the combination of osthole and menthone shows excellent antibacterial activity against Sclerotium rolfsii. When the mixing ratio of osthole and menthone is 4:6, 2:8 and 1:9, the combined mixture shows an additive effect against Sclerotium rolfsii; the co-toxicity coefficients of the other combined mixtures against Sclerotium rolfsii are all greater than 120, showing a synergistic effect.

[0041] Table 3 Indoor bioactivity determination of osthole and menthone against Fusarium pseudograminearum

[0042]

[0043]

[0044] As can be seen from Table 3, osthole and menthone showed excellent antibacterial activity against Fusarium pseudograminearum after being compounded. When the compounding ratio of osthole to menthone was 9:1, 8:2, 2:8, and 1:9, it showed additivity; the co-toxicity coefficients of the other compounding combinations against Fusarium pseudograminearum were all greater than 120, showing a synergistic effect.

[0045] Table 4 Indoor bioactivity determination of the compound of osthole and menthone against Rhizoctonia solani

[0046] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 37.6274 100.0000 -- -- Menthone 30.6867 122.6179 -- -- Osthole 9 : Menthone 1 30.3438 124.0036 102.2618 121.2609 Osthole 8 : Menthone 2 26.2394 143.4004 104.5236 137.1943 Osthole 7 : Menthone 3 26.4953 142.0154 106.7854 132.9914 Osthole 6 : Menthone 4 27.2942 137.8586 109.0472 126.4211 Osthole 5 : Menthone 5 26.8867 139.9480 111.3090 125.7293 Osthole 4 : Menthone 6 30.5143 123.3107 113.5708 108.5761 Osthole 3 : Menthone 7 33.1192 113.6120 115.8326 98.0830 Osthole 2 : Menthone 8 36.2103 103.9135 118.0944 87.9920 Osthole 1 : Menthone 9 48.0668 78.2815 120.3561 65.0415

[0047] As can be seen from Table 4, osthole and menthone showed excellent antibacterial activity against Rhizoctonia solani after being compounded. When the compounding ratio of osthole to menthone was 9 - 5:1 - 5, the co-toxicity coefficients of the compounding combinations against Rhizoctonia solani were all greater than 120, showing a synergistic effect.

[0048] Table 5 Indoor bioactivity determination of the compound of osthole and menthone against Fusarium graminearum

[0049] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 15.1544 100.0000 -- -- Menthone 58.2502 26.0160 -- -- Osthole 9 : Menthone 1 13.3715 113.3336 92.6016 122.3884 Osthole 8 : Menthone 2 13.7767 110.0002 85.2032 129.1034 Osthole 7 : Menthone 3 15.1544 100.0000 77.8048 128.5268 Osthole 6 : Menthone 4 14.4328 104.9997 70.4064 149.1337 Osthole 5 : Menthone 5 13.7757 110.0082 63.0080 174.5940 Osthole 4 : Menthone 6 13.9887 108.3332 55.6096 194.8101 Osthole 3 : Menthone 7 17.1559 88.3335 48.2112 183.2217 Osthole 2 : Menthone 8 16.8382 90.0001 40.8128 220.5191 Osthole 1 : Menthone 9 19.7666 76.6667 33.4144 229.4418

[0050] As can be seen from Table 5, osthole and menthone showed excellent antibacterial activity against Fusarium graminearum after being compounded. The co-toxicity coefficients of all the tested compounding combinations against Fusarium graminearum were all greater than 120, showing a synergistic effect.

[0051] Table 6 Indoor bioactivity determination of the compound of osthole and menthone against Fusarium incarnatum

[0052] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 10.8644 100.0000 -- -- Menthone 110.2090 9.8580 -- -- Osthole 9 : Menthone 1 10.6534 101.9806 90.9858 112.0841 Osthole 8 : Menthone 2 8.3764 129.7025 81.9716 158.2286 Osthole 7 : Menthone 3 8.5062 127.7233 72.9574 175.0656 Osthole 6 : Menthone 4 8.9212 121.7818 63.9432 190.4531 Osthole 5 : Menthone 5 9.2992 116.8316 54.9290 212.6956 Osthole 4 : Menthone 6 10.9730 99.0103 45.9148 215.6392 Osthole 3 : Menthone 7 12.4693 87.1292 36.9006 236.1186 Osthole 2 : Menthone 8 15.4550 70.2970 27.8864 252.0834 Osthole 1 : Menthone 9 29.6568 36.6338 18.8722 194.1150

[0053] As can be seen from Table 6, osthole and menthone showed excellent antibacterial activity against Fusarium incarnatum after being compounded. When the compounding ratio of osthole to menthone was 8 - 1:2 - 9, the co-toxicity coefficients of the compounding combinations against Fusarium incarnatum were all greater than 120, showing a synergistic effect.

[0054] Table 7 Indoor bioactivity determination of the compound of osthole and menthone against Fusarium equiseti

[0055] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 26.1725 100.0000 -- -- Menthone 145.5956 17.9762 -- -- Osthole 9 : Menthone 1 22.2745 117.4998 91.7976 127.9988 Osthole 8 : Menthone 2 20.5275 127.4997 83.5952 152.5203 Osthole 7 : Menthone 3 26.1725 100.0000 75.3928 132.6386 Osthole 6 : Menthone 4 33.7710 77.4999 67.1905 115.3436 Osthole 5 : Menthone 5 45.5174 57.5000 58.9881 97.4773 Osthole 4 : Menthone 6 55.1000 47.5000 50.7857 93.5303 Osthole 3 : Menthone 7 95.1727 27.5000 42.5833 64.5793 Osthole 2 : Menthone 8 116.3222 22.5000 34.3809 65.4433 Osthole 1 : Menthone 9 174.4833 15.0000 26.1785 57.2988

[0056] As can be seen from Table 7, osthole and menthone showed excellent antibacterial activity against Fusarium equiseti after being compounded. When the compounding ratio of osthole to menthone was 9 - 7:1 - 3, the co-toxicity coefficients of the compounding combinations against Fusarium equiseti were all greater than 120, showing a synergistic effect.

[0057] Table 8 Indoor bioactivity determination of osthole and menthone complex against Fusarium proliferatum

[0058]

[0059]

[0060] As can be seen from Table 8, the complex of osthole and menthone shows excellent antibacterial activity against Fusarium proliferatum. When the mixing ratio of osthole and menthone is 8:2, 6:4 and 5:5, the complex combination shows a synergistic effect on Fusarium proliferatum.

[0061] Table 9 Indoor bioactivity determination of osthole and menthone complex against Fusarium oxysporum

[0062] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Osthole 25.7242 100.0000 -- -- Menthone 144.7977 17.7656 -- -- Osthole 9 : Menthone 1 25.0968 102.4999 91.7766 111.6842 Osthole 8 : Menthone 2 21.8929 117.5002 83.5531 140.6293 Osthole 7 : Menthone 3 27.8099 92.5002 75.3297 122.7938 Osthole 6 : Menthone 4 25.0968 102.4999 67.1062 152.7427 Osthole 5 : Menthone 5 36.7488 70.0001 58.8828 118.8804 Osthole 4 : Menthone 6 44.7377 57.5001 50.6594 113.5033 Osthole 3 : Menthone 7 57.1648 45.0001 42.4359 106.0424 Osthole 2 : Menthone 8 79.1513 32.5000 34.2125 94.9946 Osthole 1 : Menthone 9 85.7473 30.0000 25.9891 115.4333

[0063] As can be seen from Table 9, the complex of osthole and menthone shows excellent antibacterial activity against Fusarium oxysporum. When the mixing ratio of osthole and menthone is 8-6:2-4, the complex combination shows a synergistic effect on Fusarium oxysporum.

[0064] Table 10 Indoor bioactivity determination of eugenol and menthone complex against Sclerotium rolfsii

[0065]

[0066]

[0067] As can be seen from Table 10, the complex of eugenol and menthone shows excellent antibacterial activity against Sclerotium rolfsii. When the mixing ratio of eugenol and menthone is 2:8, it shows an additive effect; the co-toxicity coefficients of the other complex combinations against Sclerotium rolfsii are all greater than 120, showing a synergistic effect.

[0068] Table 11 Indoor bioactivity determination of eugenol and menthone complex against Fusarium pseudograminearum

[0069] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Eugenol 37.4238 100.0000 -- -- Menthone 80.5613 46.4538 -- -- Eugenol 9 : Menthone 1 48.1114 77.7857 94.6454 82.1865 Eugenol 8 : Menthone 2 28.0650 133.3469 89.2908 149.3401 Eugenol 7 : Menthone 3 33.6780 111.1224 83.9361 132.3892 Eugenol 6 : Menthone 4 31.5731 118.5306 78.5815 150.8378 Eugenol 5 : Menthone 5 26.5879 140.7550 73.2269 192.2176 Eugenol 4 : Menthone 6 30.6164 122.2345 67.8723 180.0948 Eugenol 3 : Menthone 7 91.4891 40.9052 62.5177 65.4298 Eugenol 2 : Menthone 8 101.0340 37.0408 57.1631 64.7985 Eugenol 1 : Menthone 9 53.1758 70.3775 51.8084 135.8418

[0070] As can be seen from Table 11, the complex of eugenol and menthone shows excellent antibacterial activity against Fusarium pseudograminearum. When the mixing ratio of eugenol and menthone is 3:7 and 2:8, it shows an antagonistic effect; when the mixing ratio of eugenol and menthone is 9:1, it shows an additive effect; the co-toxicity coefficients of the other complex combinations against Fusarium pseudograminearum are all greater than 120, showing a synergistic effect.

[0071] Table 12 Indoor bioactivity determination of eugenol and menthone complex against Rhizoctonia solani

[0072] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Eugenol 11.0604 100.0000 -- -- Menthone 30.6867 36.0430 -- -- Eugenol 9 : Menthone 1 10.8629 101.8181 93.6043 108.7750 Eugenol 8 : Menthone 2 6.6122 167.2726 87.2086 191.8075 Eugenol 7 : Menthone 3 8.0043 138.1807 80.8129 170.9885 Eugenol 6 : Menthone 4 7.6040 145.4550 74.4172 195.4589 Eugenol 5 : Menthone 5 9.3588 118.1818 68.0215 173.7419 Eugenol 4 : Menthone 6 6.4034 172.7270 61.6258 280.2836 Eugenol 3 : Menthone 7 15.2081 72.7270 55.2301 131.6801 Eugenol 2 : Menthone 8 14.2505 77.6141 48.8344 158.9334 Eugenol 1 : Menthone 9 11.9848 92.2869 42.4387 217.4594

[0073] As can be seen from Table 12, the combination of eugenol and menthone shows excellent antibacterial activity against Rhizoctonia solani. When the mixing ratio of eugenol and menthone is 9:1, it shows an additive effect; the co-toxicity coefficients of the other mixing combinations against Rhizoctonia solani are all greater than 120, showing a synergistic effect.

[0074] Table 13 Indoor bioactivity determination of the combination of eugenol and menthone against Fusarium graminearum

[0075]

[0076]

[0077] As can be seen from Table 13, the combination of eugenol and menthone shows excellent antibacterial activity against Fusarium graminearum. The co-toxicity coefficients of all tested mixing combinations against Fusarium graminearum are all greater than 120, showing a synergistic effect.

[0078] Table 14 Indoor bioactivity determination of the combination of eugenol and menthone against Fusarium incarnatum

[0079] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Eugenol 40.5637 100.0000 -- -- Menthone 110.2090 36.8062 -- -- Eugenol 9 : Menthone 1 13.8510 292.8576 93.6806 312.6128 Eugenol 8 : Menthone 2 14.5613 278.5720 87.3612 318.8737 Eugenol 7 : Menthone 3 11.1351 364.2868 81.0418 449.5046 Eugenol 6 : Menthone 4 17.7466 228.5717 74.7225 305.8942 Eugenol 5 : Menthone 5 9.3097 435.7144 68.4031 636.9806 Eugenol 4 : Menthone 6 12.9066 314.2865 62.0837 506.2303 Eugenol 3 : Menthone 7 13.2068 307.1425 55.7643 550.7869 Eugenol 2 : Menthone 8 19.5825 207.1426 49.4449 418.9360 Eugenol 1 : Menthone 9 63.0991 64.2857 43.1255 149.0664

[0080] As can be seen from Table 14, the combination of eugenol and menthone shows excellent antibacterial activity against Fusarium incarnatum. The co-toxicity coefficients of all tested mixing combinations against Fusarium incarnatum are all greater than 120, showing a synergistic effect.

[0081] Table 15 Indoor bioactivity determination of the combination of eugenol and menthone against Fusarium equiseti

[0082]

[0083]

[0084] As can be seen from Table 15, the combination of eugenol and menthone shows excellent antibacterial activity against Fusarium equiseti. The co-toxicity coefficients of all tested mixing combinations against Fusarium equiseti are all greater than 120, showing a synergistic effect.

[0085] Table 16 Indoor bioactivity determination of the combination of eugenol and menthone against Fusarium proliferatum

[0086] Name and ratio of medicament <![CDATA[EC 50 (mg / L)]]> ATI TTI CTC Eugenol 255.7452 100.0000 -- -- Mentholone 114.0774 177.5054 -- -- Eugenol 9: Mentholone 1 45.6310 560.4637 107.7505 520.1493 Eugenol 8: Mentholone 2 8.7752 2914.4088 115.5011 2523.2740 Eugenol 7: Mentholone 3 9.5065 2690.2141 123.2516 2182.7006 Eugenol 6: Mentholone 4 11.4077 2241.8647 131.0022 1711.3188 Eugenol 5: Mentholone 5 9.9198 2578.1286 138.7527 1858.0744 Eugenol 4: Mentholone 6 7.1298 3586.9898 146.5033 2448.4028 Eugenol 3: Mentholone 7 114.0774 224.1857 154.2538 145.3356 Eugenol 2: Mentholone 8 38.0258 672.5571 162.0043 415.1476 Eugenol 1: Mentholone 9 12.0081 2129.7724 169.7549 1254.6163

[0087] As can be seen from Table 16, the combination of eugenol and menthone shows excellent antibacterial activity against Fusarium proliferatum. The co-toxicity coefficients of all tested mixing combinations against Fusarium proliferatum are all greater than 120, showing a synergistic effect. In particular, when the mass ratio is 8:2, the co-toxicity coefficient reaches 2523.2740, and the synergistic effect is the most significant.

[0088] Indoor bioactivity determination of the combination of eugenol and menthone against Fusarium oxysporum in Table 17

[0089]

[0090]

[0091] As can be seen from Table 17, the combination of eugenol and menthone showed excellent antibacterial activity against Fusarium oxysporum. The co-toxicity coefficients of all tested combination groups against Fusarium oxysporum were greater than 120, showing a synergistic effect.

[0092] In summary, in the present invention, osthole or eugenol is combined with menthone in a certain mass, showing a synergistic effect against pathogenic bacteria of various plant fungal diseases, which can improve the control effect on plant diseases, providing data support for the effective prevention and control of wheat basal rot, wheat scab, peanut root rot, peanut southern blight and maize scab, and having important significance for the high-quality and high-yield of crops such as wheat, peanut and maize.

[0093] The foregoing description of specific exemplary embodiments of the invention has been presented for purposes of illustration and example. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical application so that those skilled in the art can implement and utilize the various different exemplary embodiments of the invention as well as various different selections and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. Use of a pesticide composition containing menthone in controlling crop diseases caused by Sclerotium rolfsii, Fusarium pseudograminearum, Rhizoctonia solani, and Fusarium graminearum. Characterized in that, The active ingredient of the pesticide composition containing menthone is composed of osthole or eugenol and menthone in combination; When controlling crop diseases caused by Sclerotium rolfsii, the mass ratio of osthole to menthone is 9 - 5:1 - 5, 3:7; the mass ratio of eugenol to menthone is 9 - 3:1 - 7, 1:9; When controlling crop diseases caused by Fusarium pseudograminearum, the mass ratio of osthole to menthone is 7 - 3:3 - 7; the mass ratio of eugenol to menthone is 8 - 4:2 - 6, 1:9; When controlling crop diseases caused by Rhizoctonia solani, the mass ratio of osthole to menthone is 9 - 5:1 - 5; the mass ratio of eugenol to menthone is 8 - 1:2 - 9; When controlling crop diseases caused by Fusarium graminearum, the mass ratio of osthole to menthone is 9 - 1:1 - 9; the mass ratio of eugenol to menthone is 9 - 1:1 - 9.

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