Fungicidal composition having synergistic effect
A fungicidal composition having a synergistic effect is provided. The composition including active ingredients A and B. The active ingredient A is benziothiazolinone, the active ingredient B is one selected from benthiavalicarb-isopropyl, zoxamide, prothioconazole, boscalid, fenamidone, fluopicolide, famoxadone, pyraclostrobin, picoxystrobin or fluazinam, and the weight ratio of the two ingredients is from 1:50 to 50:1. The test results show that the fungicidal composition according to the present invention has an obvious synergistic effect, such that the application rate is reduced and the cost is lowered; and is useful in controlling certain particular fungal diseases on grain crops, vegetables, and fruits with a broadened fungicidal spectrum, a retarded resistance development of the fungi, and an improved control effect.
1. A fungicidal composition having a synergistic effect, comprising active ingredients A and B, wherein:
the active ingredient A is benziothiazolinone,
the active ingredient B is one selected from the group consisting of benthiavalicarb-isopropyl, zoxamide, prothioconazole, boscalid, fluopicolide and fluazinam, and
the weight ratio of the two ingredients is from 1:30 to 30:1.
2. The fungicidal composition according to claim 1 , wherein the weight ratio of the active ingredient A to the active ingredient B is from 1:20 to 20:1.
3. The fungicidal composition according to claim 1 , wherein the weight ratio of the active ingredient A to the active ingredient B is from 1:10 to 30:1.
4. The fungicidal composition according to claim 1 , comprising 5-85% by weight of the active ingredients and 95-15% by weight of pesticide adjuvants.
5. The fungicidal composition according to claim 4 , which is prepared into pesticidally acceptable formations with the active ingredients and the pesticide adjuvants.
6. The fungicidal composition according to claim 5 , which is in the form of a wettable powder prepared with the active ingredients and the pesticide adjuvants.
7. The fungicidal composition according to claim 1 is used in the control of diseases on crops in the agricultural area.
8. The fungicidal composition according to claim 1 is used in the control of grape downy mildew, wheat rust, potato late blight, wheat powdery mildew, tomato grey mold or grape anthracnose.
9. The fungicidal composition according to claim 2 is used in the control of diseases on crops in the agricultural area.
10. The fungicidal composition according to claim 3 is used in the control of diseases on crops in the agricultural area.
11. The fungicidal composition according to claim 2 is used in the control of grape downy mildew, wheat rust, potato late blight, wheat powdery mildew, tomato grey mold or grape anthracnose.
12. The fungicidal composition according to claim 3 is used in the control of grape downy mildew, wheat rust, potato late blight, wheat powdery mildew, tomato grey mold or grape anthracnose.
13. The fungicidal composition according to claim 1 , wherein the active ingredient B is selected from the group consisting of benthiavalicarb-isopropyl, zoxamide, and prothioconazole.
14. The fungicidal composition according to claim 1 , wherein the active ingredient B is selected from the group consisting of boscalid, fluopicolide, and fluazinam.
15. The fungicidal composition according to claim 1 , wherein the active ingredient B is fluopicolide.
16. The fungicidal composition according to claim 1 , wherein the active ingredient B is selected from the group consisting of boscalid and fluazinam.
17. The fungicidal composition according to claim 1 , wherein the active ingredient B is prothioconazole.