Does anyone have any idea what causes yellowing leaves on plants? They get lots of water, fertilizer but they are still not growing and the leaves are yellow. It is starting to worry me.
Was it soil you had, or soil you bought? I am wondering cause it's only the plants in that type of soil that I am having issues with, maybe there is something in it that the plants don't like. I wonder if I can save them if I transplant them?
Does anyone have any idea what causes yellowing leaves on plants? They get lots of water, fertilizer but they are still not growing and the leaves are yellow. It is starting to worry me.
First, what kind of plants, and where are they planted (pots or in the ground)? Potted plants are especially sensitive to excessive watering. If potted, are they indoors or outside? How quickly did the yellowing progress? I have a constant battle with whiteflies in my greenhouse, which do cause the leaves to yellow, then brown. Look closely at the leaves, do you see any sign of insects? Whiteflies look like specks of white dust on the leaves. There are a number of insects that live by sucking the juices from the leaves (without the chlorophyll the leaf turns yellow), and a fungus can give similar results. Once you've determined that an insect or fungus is responsible you can decide on a treatment.
They are cosmos plants, a type of flower, they kinda look like ferns but flower bright flowers. They are one of my favorites. If I take a magnifying glass you think I could see bugs if they are there?
Oh, how do you treat for those bugs? Any special powder, spray or is there nothing to fix it now that it is done? I hope not, they are such beautiful flowers to lose them.
Thanks for the video. I transplanted the cosmos into a different container and some composted horse and sheep manure and I hope they start to do better soon.
Oh, how do you treat for those bugs? Any special powder, spray or is there nothing to fix it now that it is done? I hope not, they are such beautiful flowers to lose them.
I'll assume that your cosmos are located outside. Spider mites are known to attack cosmos, and will turn the leaves yellow. Whiteflies are also pretty common.
I'd try an insecticidal soap to control these bugs. These soaps are very safe and fairly effective. You can buy the soap "ready-to-use" at most garden supply shops, or make your own by mixing 1-2 tablespoons of liquid soap with a gallon of water. Spray your plants, being sure to cover all areas, every week until the bugs are gone.
If the soap doesn't work you could then try one or more of the chemical pesticides that have spider mites and whiteflies listed on the label.
Yes, they are in my main garden. I feel so bas because they are such pretty plants. I am going to get a magnifier to see if I can see any bugs on them.
