Robotic insecticide

Robotic insecticide is lethal to Insecticons. It is, of course, completely harmless to all other Transformers and there is absolutely, positively no cause to worry about it. Its use may or may not be restricted to cloned Insecticons. Whether this means it is lethal to Cyclonus is debatable, but then again, so is the origin of Cyclonus, for that matter.

At least one brand of this bug-destroying substance found on Floron 3 comes in Bumblebee-sized giant red cans marked with X's.

Skids has his doubts about robotic insecticide. Quest for Survival

From Teletraan I: The Transformers Wiki, a Wikia wiki.