Upl Corporation Limited

Gilson Aparecido Hermenegildo De Oliveira

Jaidev Rajnikant Shroff

Vikram Rajnikant Shroff

A combination comprising a multi-site contact fungicide, a first systemic fungicide and optionally a second systemic fungicide and a method using the same.

Method for controlling rust

The decrease in soybean rust control using fungicide mixtures (DMAs+QoIs) reached very low levels for the harvest of 2012/13 (an average of 37% for the three main mixtures). This decrease is due to a decrease in Pp sensitivity to individual DMIs and QoIs, and mixtures thereof. Anti-resistance strategies have not been introduced in Brazil for preventing/delaying the development of resistance of the fungus that is the causal agent of rust () in soybean [plant form the family Fabaceae,(L.) Merr.] and of the fungus that is the casual agent of yellow leaf spot (-) in wheat [plant of the familyL.], as well as other disease complexes that attack the main crop plants in Brazil, such as corn, beans, cotton, inter alia. By means of said method it is possible to recover the efficiency of several mixtures (DMI+QoI and QoI+SDHI) due to a decrease in fungal sensitivity. The methods described by the present invention seek to increase the effective useful life of fungicides and increase grain yield.

Anti-resistance method

The present invention relates to a method for reducing the phytotoxicity of systemic fungicides, mainly triazoles, in susceptible cultivars, mainly soy cultivars. The present method makes it unnecessary to develop new diversified fungicide formulations and to add specific substances to reduce the toxicity of these products.

Method for reducing phytotoxicity of fungicides

The decrease in soybean rust control using fungicide mixtures (DMAs+QoIs) reached very low levels for the harvest of 2012/13 (an average of 37% for the three main mixtures). This decrease is due to a decrease in Pp sensitivity to individual DMIs and QoIs, and mixtures thereof. Anti-resistance strategies have not been introduced in Brazil for preventing/delaying the development of resistance of the fungus that is the casual agent of rust () in soybean [plant form the family Fabaceae,(L.) Merr.] and of the fungus that is the casual agent of yellow leaf spot (-) in wheat [plant of the family Triticea,L.], as well as other disease complexes that attack the main crop plants in Brazil, such as corn, beans, cotton, inter alia. By means of said method it is possible to recover the efficiency of several mixtures (DMI+QoI and QoI+SDHI) due to a decrease in fungal sensitivity. The methods described by the present invention seek to increase the effective useful life of fungicides and increase grain yield.

Growing community of inventors

Sao Paulo, Brazil

Gilson Aparecido Hermenegildo De Oliveira