My bell peppers grown in a pot are only getting to be about 2 in. diameter and then rotting. The plant itself is really beautiful and no signs of insects. I used miracle gro expand-n-gro soil in the pot. I have moved the plant back so it only receives about 5 hrs. of sun and am watering every day. Please help. Thank you.
It sounds like a pollination issue. If the peppers are not properly pollinated, they will get soft and drop off the plant at about that size. Peppers and tomatoes pollinate in the same way, so this article will help you:
https://www.gardeningknowhow.com/edible/vegetables/tomato/pollinate-tomatoes.htm
If you are getting any peppers that are growing and it's rotting only the bottom portion of the fruit, this is blossom end rot. This article will help: https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-blossom-end-rot.htm
What causes black or brown spots on otherwise healthy looking green bell peppers still on plant?
If the spots are on the top or sides of the fruit, then it is likely sunscald and is from too much direct sunlight. A simple shade will help stop it. If they are on the bottom of the fruit, then it is blossom end rot. These articles will help: https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-sunscald.htm
https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-blossom-end-rot.htm
Is 20-20-20 fertilizer too strong for green bell peppers? I am having trouble with very thin paper like skins [no meat].
You are too nice to them is why they have thin skin. Plants develop thicker skin to help protect them from the elements. I would guess that where your plants are growing is sheltered from winds and harsh sun. While I have not tried this personally, I am guessing that since reducing harsh elements on peppers makes their skin thinner, increasing it will thicken them. Try giving the plants a gentle shake every so often to trick them into thinking they are in a windier environment than they actually are.
My Big Bertha bell peppers are starting out good, but at about one inch or so, they are beginning to brown and start showing signs of rotting. I don't know if it's a pest problem or what.
Blossom End Rot. Here is a link with more information.
https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-blossom-end-rot.htm
I am growing bell peppers in pots on my elevated porch. I have some sort of spider-like bug, has some orange on its back and black legs. They seem to be eating the leaves and ripening peppers. What are they and what should I use to get rid of them?
This could be spider mites or even aphids. Regardless of the pest, neem oil is an effective (and safe) treatment. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
I've grown green peppers for years without experiencing this problem. Plant leaves are turning brown and falling off the stem so that the plant looks a little bit like a palm tree. Only leaves remain in the top half of the plant. They are blooming a little and setting a few peppers but look pretty scrawny. Would daconil help this? Thanks in advance.
Yes, Daconil should help. It certainly does sound like a fungus and this fungicide should help relieve the problem.
I have a raised bed garden. I noticed today the red bell pepper plant that has been growing great has yellow lower leaves. It's just started this week.
This article should help: https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-yellow-leaves.htm