What pests attack potted avocados the most?

Red spider mites are going to give you a lot of trouble with potted avocados, especially if you keep them indoors or in a really dry spot. Aphids are pretty common too, and scale insects latch on easily, particularly on new leaves, so keep an eye on them from time to time.

Thrips are honestly what gave me the most trouble with my two potted avocados. I'm not sure if they're not talked about as much here, but in my case they've been way more aggressive than the other pests. Thrips leave those silvery spots on the leaves and end up deforming everything, plus they multiply super fast if the air is warm and dry, which is exactly what I have in my living room during summer.

What happened to me was I didn't look at the leaves carefully for several months because I was looking more at the top side, and the thrips were on the underside. When I noticed, I already had a pretty big problem. I had to spray with potassium soap water a couple times a week for like three weeks, and I also changed my watering a bit so there'd be more humidity. Eventually it went away, but it was way more tedious than I expected. Now I regularly check the underside of the leaves, especially in July and August.

As for what it says here about spider mites and aphids, obviously those show up too, but in my experience with potted avocados thrips take priority. If you have really dry air and heating, spider mites are a real problem. But with thrips you have to stay on top of it because they move fast. If you catch them early, spraying once a week with soap and water is usually enough; if you wait too long, you're in for the long haul.

Where do you keep the avocado, indoors or outdoors? Because what nobody mentions is that spider mites and whiteflies are a particular nightmare in pots - they reproduce super fast in that closed or semi-closed environment, way more than in a plant that's outside. The problem is that in a pot the water gets stagnant more easily, the humidity concentrates, and that creates the perfect conditions for these pests to explode. Plus if you water from above and wet the leaves, you're basically setting them up for success. Spider mites, thrips, and mealybugs are real, but these other bugs that don't get mentioned as much are just as bad or worse to control because a lot of people don't see them coming.

Mites and mealybugs are the pests that mess up potted avocados the most, especially indoors where the air is dry. You can also get thrips and whiteflies if there's no good ventilation, so the best thing is to check the leaves every now and then, especially underneath. A spray with water and neutral soap works pretty well in the early stages, but if it's already heavily infested you might need something stronger.

Spider mites and mealybugs are probably the worst pests you're going to deal with on a potted avocado. Spider mites are microscopic so it's easy not to see them at first, but what you'll definitely notice is the leaves turning yellow and kind of dusty-looking. Mealybugs are easier to spot because you can see these little whitish bugs stuck on the leaves and stems, pretty gross if I'm being honest. Both of them suck the sap from the plant, so if you don't get them under control fast, your avocado's gonna get really messed up.

Then there are whiteflies, which are also pretty common on indoor plants. They look like tiny white mosquitoes on the undersides of leaves, and they leave this sticky residue that attracts fungi. It happened to me a few years back with a couple of plants and I didn't notice until the problem was pretty far along. Thrips can attack too, especially if the air is really dry, so it's important to keep some humidity but not overdo it.

What I recommend is regularly checking both the tops and undersides of the leaves, because a lot of pests hide there. If you spot something, you can start with water and neutral soap or neem oil, which works pretty well. The important thing is being consistent because these pests don't disappear overnight. And believe me, it's a thousand times easier to prevent them than to be fighting a serious infestation later on.