This is my third try in having a basil that lives more than a month and I've been rather successful with my last try. But now, for some unknown reason to me, it's dying.
Here are many pictures of what I have gathered and my comments to help you understand and, hopefully, help me understand and overcome this situation. I've found many basil related questions on this site already but they didn't seem to have the same symptoms (most of the time, basil was being eaten by something, mine seems to not lose matter, but to rot instead).
Image 1 : These are the stages of the process. From left to right, healthy to dead. The last one is completely dry and often falls off just by barely touching the branch.
Image 2 : I've had to cut leaves regularly as they became more and more infected, and cutting infected leaves seemed to slow down the infestation of the remaining leaves. All of them seem infested now.
I think it happened from bottom to top, since only the top leaves are now alive, but they are also the last ones to have been growing so I don't know.
You can also see in the background I'm using a fertilizer to help nourish the plant, as the last two basils I've had died, I'm just trying to boost my chances.
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And now the most important bit and maybe what I should've started with
- These white crawling insects are all over my plant.
- They do not seem to grow.
- They don't seem hairy.
- They're about 1.5mm long, but I've eyeballed it
I can find them inside/under leaves, and that's about it. I've seen them in the dirt but I think its just from the leaves falling. They're now on my table from all the dead leaves I've removed.
I've also found a very small spider, I have no idea if she's related either. I'm hoping she's enjoying all the food, but I don't think she can eat all those bastards alone.
Okay, I know taht's a lot of pictures, most of them are probably all irrelevant, but since I have no clue I'm trying to provide as much information as I can.
Oh, also, I live in Belgium, summers are not really hot here but there can be 10° (celsius) differences in a single day. The plant is inside, always watered from the bottom. That window right next to it is pretty much always open, and the plant is exposed to direct sunlight about 1h or 2 at least every sunny day.
Please ask me for more information if you need it. I'm not sure what I can do for my next basil since this one will probably be dead in the next few weeks.