It seems that ants these days have grown accustomed to ant poison in pellet form, and largely avoid them.

Seeing ants congregate and climbing up and down my vitex trifolia plant which seems to be constantly infected with scales (although daily spraying of garbage enzyme helps A LOT to keep their numbers down) drives me a bit nutty since ants farm scales for their sweet nectarish secretions. Good for the ants, bad for my plant. So, it’s them which has to go, both ants and scales.

I found the whole ant trail this morning, and as a first round of attack, I sprayed home-made white oil on all of them. The white oil consists of about 30ml water, one teaspoon of cooking oil, and one squirt of dishwashing liquid. Unfortunately (in the past at least), these ratios are too strong for plants’ leaves, so one has to make sure that the plant has been watered beforehand, or you don’t spray on the leaves directly at all.

I made sure all the ants on the trail were dead. I must have killed hundreds of them. If I continue doing that every day, I expect to see larger and larger ants coming out each day, which mean that the nest’s worker ants has diminished and they’re sending out soldier ants now.

I’ve tried the corn meal method, but I cannot be sure it works since 1) I can’t see the ants when they take the corn meal back to their nest and I’m not sure if they really do explode; 2) my packet or corn meal got infested by some weevil things.

However, I will be dunking the whole pot of my vitex trifolia in warm water soon to kill the ants which have made a nest in it. And couple it up with a two-pronged attack by spraying more white oil or white vinegar on any other ants I see.

Credit: Google Images

WikiHow contains some amusing techniques to kill ants without using pesticides