Measurement of charmlessBdecays toηK*andηρ

We report measurements of branching fractions and CP asymmetries for B{yields}{eta}K* and B{yields}{eta}{rho} decays. These results are obtained from a 414 fb{sup -1} data sample collected at the {upsilon}(4S) resonance with the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider. We measure the following branching fractions: B(B{sup 0}{yields}{eta}K*{sup 0})=(15.2{+-}1.2{+-}1.0)x10{sup -6} and B(B{sup +}{yields}{eta}K*{sup +})=(19.3{sub -1.9}{sup +2.0}{+-}1.5)x10{sup -6}, where the first error is statistical and the second systematic. We also find a 2.7{sigma} excess in the B{sup +}{yields}{eta}{rho}{sup +} mode and measure B(B{sup +}{yields}{eta}{rho}{sup +})=(4.1{sub -1.3}{sup +1.4}{+-}0.4)x10{sup -6}