I am in southern Arizona. The black things are not on any other surrounding plants. I have twice dusted this plant with diatomateous earth. These things keep returning and they appear to be consuming the leaves.
It could be aphids or mites. The fact that they keep returning to this plant indicates that the plant is having stress somewhere else too. Bugs tend to be attracted to stressed plants. I would check to see if you can reduce the stress to the plant - it may have problems with the roots, not getting enough water or need more nutrients.
A friend of mine has some yellow bell plants all around his yard. He called me to ask about the plants having little black dots on the leaves and the leaves look eaten up.
It may be a fungus or aphids. I like neem oil as it is organic, safe for people and beneficial bugs but effective on pests. It's also an effective fungicide should this be your problem.
We noticed yellow spots on our new Esperanza plant. It has been in the ground about a week and has been watered every other day.
Could you be watering it too often? Hopefully this article will help: https://www.gardeningknowhow.com/ornamental/shrubs/esperanza/esperanza-plant.htm
I have several gorgeous esperanzas in a row on the southern side of our central TX home. All are growing ok, yet rather slowly compared to one that is huge already with NO flowers on it. What's going on?The others are flowering.
Give the tree that's not blooming some bone meal or use a high phosphors fertilizer. That should make it have more blooms.;
This year my Esperanza plant is not blooming. Why?
The soil could be lacking sufficient phosphorus, which is responsible for blooming in most cases. Try adding a higher phosphorus fertilizer (like Bloom Plus, Bloom Booster) or add bone meal to the soil around your plant. Here is more info that may help: https://www.gardeningknowhow.com/ornamental/shrubs/esperanza/esperanza-plant.htm
This is my first time to have esperanzas.
It does not need pruning before winter. It is recommended that you wait to prune this plant until right after the blooms have faded.
I live in south Texas and my Esperanza plant or yellow bell has yellow spots on the leaves. There is a little green on between and it has new growth.
There are a number of possible reasons why leaves on your pepper plant would turn yellow. (BTW, that's Esperanza pepper; Esparza is something completely different) This article gives you a rundown on the common ones: https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-yellow-leaves.htm
If you need someone to actually look at your plant and give you advice, you can take leaf and soil samples to the nearest Extension Service. This article will help you find one: https://www.gardeningknowhow.com/garden-how-to/info/what-is-extension-service.htm