Delinquent rugrat nextdoor killed half my tomato plants

[MorningGlow]

Well, she's at it again--taking "revenge" because we don't want her and her siblings running around in our yard while we're undergoing major renovations and have dangerous crap and deep holes all over the place.

Threw cherry tomatoes (not mine) at the side of our house. (Nice waste of food.) Tossed empty juice boxes in our front yard while waiting for the bus in the morning. Killed half my tomato plants.

She's pretty unhinged and angry for an 11-year-old. I know I have to talk to her father and will do so as soon as I catch him at home while the kids are in school. But the major question I have right now is...what in the world did she use to kill my tomato plants? You'd think an angry kid would just trample my garden. But instead she smeared something that looks like lotion or shampoo on the leaves of only my tomato plants, probably because they were at the back of the garden and she could hide behind them. It stinks to high heaven (sickly sweet perfume-like smell). It wasn't on there long. I tried washing it off with the hose. It kind of worked, but it stayed where it landed on the dirt and didn't dissolve. (Days later, it's still there.) It landed on one ripe tomato, so I picked it and washed it, even with dish soap, and it STILL smelled like the white stuff. I threw it away. Within days, the leaves and branches that had been smeared with the stuff died (the back half of both plants). The rest of the plants are fine.

Any ideas on what that was? I'm just curious at this point. I know Skin-So-Soft can keep mosquitoes away; can it kill plants? :shrug: