Synergistic Mixtures for Fungal Control in Vegetables
A fungicidal composition containing a fungicidally effective amount of the compound of Formula I, (S)-1,1-bis(4-fluorophenyl)propan-2-yl (3-acetoxy-4-methoxypicolinoyl)-L-alaninate, and at least one fungicide selected from the group consisting of epoxiconazole, prothioconazole, difenoconazole, azoxystrobin, pyraclostrobin, picoxoystrobin, fluxapyroxad, benzovindiflupyr, penthiopyrad, bixafen, chlorothalonil, and mancozeb provides synergistic control of selected fungi.
1 . A synergistic fungicidal mixture, comprising:
a fungicidally effective amount of the compound of Formula I, (S)-1,1-bis(4-fluorophenyl)propan-2-yl (3-acetoxy-4-methoxypicolinoyl)-L-alaninate:
and
at least one additional fungicide selected from the group consisting of sterol biosynthesis inhibitors, respiration inhibitors, and multi-site action inhibitors.
2 . The mixture of claim 1 wherein the sterol biosynthesis inhibitor is selected from the group consisting of epoxiconazole, prothioconazole and difenoconazole.
3 . The mixture of claim 2 wherein a concentration ratio of the compound of Formula I to epoxiconazole is from about 10:1 to about 1:1.6.
4 . The mixture of claim 2 wherein a concentration ratio of the compound of Formula I to prothioconazole is from about 10:1 to about 1.3:1.
5 . The mixture of claim 2 wherein a concentration ratio of the compound of Formula I to difenoconazole is from about 5:1 to about 1:1.6.
6 . The mixture of claim 1 wherein the respiration inhibitor is selected from the group consisting of azoxystrobin, pyraclostrobin and picoxystrobin.
7 . The mixture of claim 6 wherein a concentration ratio of the compound of Formula I to azoxystrobin is from about 50:1 to about 3.1:1.
8 . The mixture of claim 6 wherein a concentration ratio of the compound of Formula I to pyraclostrobin is from about 50:1 to about 3.1:1.
9 . The mixture of claim 6 wherein a concentration ratio of the compound of Formula I to picoxystrobin is from about 10:1 to about 1:1.6.
10 . The mixture of claim 1 wherein the respiration inhibitor is selected from the group consisting of fluxapyroxad, benzovindiflupyr, penthiopyrad and bixafen.
11 . The mixture of claim 10 wherein a concentration ratio of the compound of Formula I to fluxapyroxad is from about 50:1 to about 3.1:1.
12 . The mixture of claim 10 wherein a concentration ratio of the compound of Formula I to benzovindiflupyr is from about 10:1 to about 1:1.6.
13 . The mixture of claim 10 wherein a concentration ratio of the compound of Formula I to penthiopyrad is from about 10:1 to about 1.3:1.
14 . The mixture of claim 10 wherein a concentration ratio of the compound of Formula I to bixafen is from about 10:1 to about 1:1.6.
15 . The mixture of claim 1 wherein the multi-site inhibitor is selected from the group consisting of chlorothalonil and mancozeb.
16 . The mixture of claim 15 wherein a concentration ratio of the compound of Formula I to chlorothalonil is from about 1:1.3 to about 1:20.
17 . The mixture of claim 15 wherein a concentration ratio of the compound of Formula I to mancozeb is from about 1:1.3 to about 1:20.
18 . The mixture of claims 1 - 17 , wherein the mixture provides control of a fungal pathogen, and the pathogen is the causal agent of early blight of tomato ( Alternaria solani ).
19 . A synergistic, fungicidal composition comprising of a fungicidally effective amount of the mixtures of claims 1 - 17 and an agriculturally acceptable carrier.