Thumb Score: +28 Walmart has 32oz Spectracide Triazicide Ready-to-Spray Insect Killer Concentrate for $4. Select free store pickup where stock permits. Thanks npolymer Note, in-store availability may vary. Refer to the forum thread for additional deal ideas and discussion. Alternatively, Amazon has as an Add-on Item: 32oz Spectracide Triazicide Ready-to-Spray Insect Killer Concentrate for $4.