These little buggers are quite sneaky and more clever than American ants.
If they see any food, regardless if their in a container or plastic bag, they will find a way to get to the food. Yes, they can chew through plastic, something I have never seen their American cousins do.
When I first came to Vietnam back in May, 2004, the ants got to my cough drops. I was a amazed since not did the ants chew through the paper wrapping, they even chewed through the thick plastic bag. My first night I lost two bags of cough drops.
I bought some Vietnamese sweat potatoes last night with a friend. It was placed in a clear plastic bag. I fell asleep and forgot to eat the potato. I woke up and saw probably about 50 or more ants all over the plastic bag with the potato. One manage to get in but the rest were still struggling to get inside. If I had left the bag on my desk, the ants would eventually chewed through it 🙂
Lucky, my dog, has another free meal.
I am still impressed by the sneaky and clever Vietnamese ants.