Caterpillars about 1/2 inch when grown. Live in groups under kale leaves, destroying them. They are bkack, yellow and white stripes. Not green. What are they and hiw dovi orevent them coming back next year. Killed 4 of 6 kales and most if the broccoli before the second cutting.
This is terrible but very common. Here is a link to explain what they are and how to keep them away: https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm
What do I need to do to keep the ornamental cabbage & kale plants looking pretty all winter?
These are very simple to keep looking at there best. They just require very cold weather to do so. This article will give you more information on the care of these: https://www.gardeningknowhow.com/edible/vegetables/kale/ornamental-kale-plants.htm
We plant kale on a pretty large scale. Found a bunch of kale dying or dead and upon further inspection found root maggots eating the roots. We sell our kale so we need something that’ll kill the root maggots but won’t be harmful for human consumption.
This article will help you address this issue.
https://www.gardeningknowhow.com/plant-problems/pests/insects/root-maggot-control.htm
This was one reason I gave up growing kale in my main garden, after plants were mature for about a month something—worms, slugs?—decimated the leaves till the plants were barely recognizable. This year for the first time, I began growing vegs in containers on the back patio. For a while I’ve had great success, plenty of kale and swiss chard for eating. Now, however, some of the plants are being attacked as in the past. After a parching hot dry spell we did get rain and cooler weather, which I suppose has brought out the bugs to feast. But how to get rid of them without using chemicals? Also, should I isolate the bug-ridden plants from the vicinity of those that still seem healthy? - Thanks -
Without catching them, it can be hard to say what is eating your plants. Once you treat those, and the other plants with an organic insecticide, you will not need to separate them.
There are several things that you can do to prevent this, and many of those things you likely already have in your kitchen!
This article will help: https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm
If not sea kale can you tell me what it is and is it edible?
Do NOT under any circumstances go consuming wild kale or its relatives. Many of them will lead you straight to the emergency room. Calcium Oxalate is no joke. This species (unless it is cultivated) contains many seriously toxic members. Unless you planted it as Kale, then don't consume it. As a side note... That does not appear to be Sea Kale. There are too many in this family to give it a proper ID.
I don't any leave on the bottom of my plant
It sounds as though the plant has gone to seed. If it's older, it's shed its lower leaves and bolted.
Here's an article about growing kale:
https://www.gardeningknowhow.com/edible/vegetables/kale/growing-kale.htm
I got 3 kale plants I put one in larger pot and it died soon after the other two have continued to grow but now they look like bushes/trees what am I supposed to do trim them if so how
Kale is treated as an annual, and will be harvested as it grows. Once it starts to flower, it will be discarded. Likely, your kale is nearing the end of its life.
As for the larger plant that died- It sounds like the kale may have been placed into a container that was significantly larger than the one it came in. This will usually lead to overwatering, and infection. This will lead to the death of the plant.
What I can do from here is offer an article that will help you with the proper care of Kale in container. This should help prevent future issue.
https://www.gardeningknowhow.com/edible/vegetables/kale/growing-kale-in-pots.htm