  We present new UBV(RI)_C photometry of 22 stars that host transiting planets,
19 of which were discovered by the WASP survey. We use these data together with
2MASS JHK_S photometry to estimate the effective temperature of these stars
using the infrared flux method. We find that the effective temperature
estimates for stars discovered by the WASP survey based on the analysis of
spectra are reliable to better than their quoted uncertainties.
