Use of pro-fungicides of uk-2a for control of soybean rust

A method of controlling PHAKPA in a plant that is at risk of being diseased comprising the steps of:

• contacting at least a portion of a plant and/or an area adjacent to a plant with a composition including a compound of Formula I.
• wherein M is selected from —R1, —C(O)R1, —C(O)OR1, —C(S)OR1, —C(O)N(R1)R2, —CH2C(O)R1, —CH2C(O)OR1, —CH2C(S)OR1, —CH2C(O)N(R1)R2—CH2OR1, —CH2SR1, —CH2P(O)2OR1, —Si(R1)3, —S(O)2OR1, P(O)2OR1;
• R1 is alkyl or arylalkyl;
• and
• R2 is alkyl or arylalkyl, wherein said compound is effective against a plant pathogen.