Villain running 18/15/4

Poker Stars $0.10/$0.25 No Limit Hold'em - 8 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

MP1: $40.60
MP2: $6.00
Hero (CO): $43.00
BTN: $25.35
SB: $25.00
BB: $25.00
UTG: $14.75
UTG+1: $64.75

Pre Flop: ($0.35) Hero is CO with J A
UTG checks, 1 fold, MP1 raises to $1.10, 1 fold, Hero raises to $3.75, 4 folds, MP1 calls $2.65

Flop: ($7.85) 8 5 9 (2 players)
MP1 checks, Hero bets $5, MP1 calls $5

Turn: ($17.85) 5 (2 players)
MP1 checks, Hero bets $10, MP1 calls $10

River: ($37.85) 5 (2 players)
MP1 bets $10, Hero folds

I may have shoved the river if he checked but is the turn bet too agro?

If the villain is aggro, you need to be afraid when he calls instead of betting.

I'd check the turn. You need a free card and he's offering it to you. Take it.

He really doesn't expect you to fold on the river, so I'd follow Mike Caro's advice: When a poker player wants you to do something, disappoint them and do the opposite.