Depends on the type of ant. Some ants are predatory, as long as they aren't chewing your roots and plants they're beneficial. However a lot of ants farm aphids, those are the ones you have to watch out for. They'll start as soon as the weather heats up. Check the underside of your leaves, you'll see aphids all over. If you see the ants crawling all over your plants that's usually what they're up to.
I've got odorous house ants, invaded my house, they're a nightmare. Nearly impossible to get rid of. They winter inside then move outside in the summer. Get into the sugar, the cat food, anything fatty or sweet. They're grease ants as opposed to sugar ants that only eat sweets. I've had to throw out honey, brown sugar, cookies, they even get in baked potatoes if you leave them on the counter for a few hours. Insidious things.
They also farm aphids, they go for the flowering plants outside. They'll make a weak attempt at infesting ganja near their food sources but they're more interested in nectar producing flowers.
Found a volunteer in the yard. It'd been ravaged by slugs. The leaves on one side and the new growing shoots were gone. I wrapped copper foil around the base of the seedling. A week later no new slug damage and there's new leaves blowing out from the nodes. It's going to be a bushy one.
Organilush, that's love for THE plant!
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