Can I consider it to be a scare card?

[Ratamahatta]

I am working on my bluffing skills and one thing that I picked up is that it's a good idea to bet on a scare card. Like if villain calls your cb on 239r board, then you should be more willing to fire second barrel if turn is an A then a 2. But what about this kind of situation: lets say that villain is semi-solid, slightly weak-tight, basicaly a perfect candidate for a second barrel bluff.

Blinds: $0.50/$1
6 players
Converter

Stack sizes:
UTG: $182.75
Hero: $94.00
CO: $171.14
Button: $98.40
SB: $87.46
BB: $165.85

Pre-flop: (6 players) Hero is UTG+1 with A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $4</font>, 2 folds, SB calls, BB folds.

Flop: 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/heart.gif[/img] ($9, 2 players)
SB checks, <font color="#cc0000">Hero bets $7</font>, SB calls.

Turn: T[img]/images/graemlins/spade.gif[/img] ($23, 2 players)
SB checks, <font color="#cc0000">Hero bets $16</font>

Is turn card a good card to bluff at, can I consider it to be a scare card? If we put villain on 66-99, then a T on the turn doesn't change the strenght of our hands no matter what we have.