| abstract |
Methods and compositions are disclosed wherein exogenous chemicals are applied to plants to generate a desired biological response. One embodiment of the present invention is a plant treatment composition that comprises (a) an exogenous chemical and (b) a first excipient substance which forms liposomes in aqueous dispersion and which consists of one or more compounds each having (i) a hydrophilic moiety comprising a cationic group and (ii) a hydrophobic moiety comprising two hydrocarbyl or acyl chains, wherein about 40 to 100 percent of said chains in the composition are saturated linear alkyl or alkanoyl groups having about 8 to about 22 carbon atoms, preferably about 12 to about 18 carbon atoms. |