I have black spots that cover all of the buds on my tree. I cant see any movement so I don't know if they are bugs. I have sprayed with a soap solution and rubbing alcohol and haven't seen a change. Are they bugs and should I throw away my plant?
To me, it seems as if you are looking at either a bacterial, or fungal infection. I have a method I use to correct this that will also give your plants a little boost.
My recipe is as follows: First, you will want to prime the soil with dolomitic lime, then spread wettable sulfur to Kill off any infection in the soil. I Also like to spray the plant itself. Mix a few drops of one or more of these ingredients into warm water with a spoonful of coconut oil: Rosemary oil, lavender oil, neem oil, garlic oil, cinnamon extract/oil and for really bad cases, also add clove oil.
Here is a link for more information: https://www.gardeningknowhow.com/plant-problems/disease/bacterial-leaf-spot.htm
We seem to get a lot of yellow leaves, what would be the problem
This article will help you:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/answers-to-what-causes-hibiscus-leaves-turning-yellow.htm
I brought my braided hibiscus in the house as it is starting to frost here. I have noticed really tiny white flying bugs coming off my plant. What can I do to treat my plant?
These are most likely whiteflies. See these articles for help:
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-whiteflies-houseplants.htm
https://www.gardeningknowhow.com/houseplants/hpgen/bring-plants-in-without-bugs.htm
I read about a balanced fertiliser, but, what I really want to know is what brand or something a little easier too understand than a 20-20-20 balance when I go too buy a product please.
Brand is not important, as long as the numbers are a balanced 20-20-20. This is the easiest and most efficient way to know what is in a fertilizer, and what it is for. If you ask for this balance at your local walmart, or Lowe's, or anywhere that carries fertilizer, then they will be able to direct you to the correct nutrients.
I "feed" my hibiscus monthly with fertilizer sticks. Should I continue this practice when I bring it in for wintering?
No fertilizer in winter: plants don't grow much due to the low light level. Unless you have a true tropical hibiscus, your plant needs to have a dormancy period to reset its flowering schedule. Monitor moisture level carefully - it will likely need less than when outdoors and growing vigorously. More info here: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/wintering-hibiscus-indoors-winter-care-for-hibiscus.htm
What do you treat gall midge on hibiscus with?
It is difficult to control or treat these, as they usually reside within the plant. The best method of treatment is to remove any, and all infected parts of the plant. Now once thing you can try, as plants can take up some pesticides through the roots, is rosemary oil! Just add a teaspoon to a gallon of water, and water in with this. There is no guarantee that this will work, but there is a great chance it will help you to control the problem easier.
Here is an article for more information on the pest: https://www.gardeningknowhow.com/plant-problems/pests/insects/blossom-midge-in-plants.htm
How can I start hibiscus plants from cuttings?