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My garden plants are turning yellow… what is a gardener to do?
We all have seen our plants turn yellow. It is very obvious, and for some plants this signal is a death sentence. The leaves of our garden plants are losing a green pigment that helps them absorb nutrients from the sun, and at the same time the plant is shutting down its photosynthetic activity. As a gardener you want to help your plants avoid these problems. A dead plant may have to be removed, but often a yellowing plant can be saved by some simple tricks. We will address this question in this article.
Yellowing as a result of plant disease
In the wild, a yellowing plant is almost always the result of plant disease. If you find a plant with signs of a disease such as:
A plant that has a bunch of holes or spots where you find no new growth or a plant that has a bunch of leaves that have died down and no new growth, this is a sign that the plant has a fungal disease called ‘powdery mildew.’
A yellowing plant that is stunted and has no growth is usually the result of a fungus called ‘Fusarium wilt’.
If you find this situation you must immediately start removing the diseased plants from the garden.
Yellowing plants as a result of plant stress
There are many things that can cause a yellowing plant.
Some plants get yellow leaves when they do not get enough water. The water stress can be caused by a dry garden in a very hot summer or when you have only a small container in which the plants are growing.
You can give the leaves a drink of water by cutting them off their stems at the soil level. Be sure to cut them off at the correct level. You can cut the bottom and top of the plant to get the leaves to drink the water.
You should do this for two days and cut the leaves off if they still do not drink the water and they stay yellow.
Plants that are always in water can also turn yellow in the summer due to sun exposure. Make sure that you cut off any leaves that are yellow.
If you use the same amount of water that the plant should get, but the plant is yellow, you should consider the possibility that the soil that the plant is growing in has low water-holding capacity.
Yellowing plants as a result of insect attack
Some insects eat a great deal of the foliage on a plant, which can make the plant turn yellow.
Possible insect problems are
Aphids – These insects are very common and they are a problem to many plants in the garden.
Mealybugs – Mealybugs will make the plant look yellow as they suck the sap out of the leaves.
Cabbage Looper – These green and black insects eat young plants.
Cutworms – These insects eat the roots of the plant and can kill the plant.
Powdery Mildew – Mildew will start to grow on the plant if it is not watered regularly. The mildew can be on the leaves, stems and buds. It can ruin the appearance of the plant. It will eventually kill the plant if it is not taken care of.
Frost – There are a number of plants that can be damaged by freezing temperatures. The plant can lose its leaves and the root system can be damaged by frost.
A number of garden pests and diseases can cause yellowing and browning of the leaves. The yellowing may go away, but if it does not, there are other things that you can try.
Sometimes plants start to yellow if they are in poor soil. You may not know how to fix this type of problem, but there are a number of remedies. You may be able to find some of the remedies on the following list. There may also be a solution to your problem on our site. Make sure to call us if you need any advice or to report a pest.
Sick or Dying Plants
Plant Problems in the Garden
Repairs, Maintenance and Problem Solving
Plant Care Products and Supplies
Plant Problems: Yellow Leaves
There are a number of reasons why leaves may turn yellow.
Pests – Insects may be to blame for the yellowing.
Disease – Yellowing of the leaves may be the result of disease. There are a number of diseases that will cause yellowing.
Frost Damage – Plants may be damaged by frost and can cause yellowing of the leaves.
Water Stress – The plant may be stressed because it is not getting enough water. Yellowing of the leaves can result.
Nutrition – Poor nutrition, such as a lack of iron, zinc or calcium, can cause the leaves to yellow.
Lighting – If you notice that the leaves have become yellow, there may be too much light in the room. You may need to make a change in your light fixture.
Nutrient Deficiency -There are a number of nutrients that are needed for the leaves to stay healthy. If you suspect that there is a nutrient deficiency, such as iron, zinc, magnesium or calcium, you will need to use a remedy.
Light – If the plant is receiving more light than it needs, the leaves may turn yellow.
Dryness – The plant may be in a dry spot. If the plant does not have enough water, the leaves may turn yellow.
Mulch – The leaves may be affected by too much mulch or too little mulch. If the leaves have become dry, the mulch will keep them from wilting and the leaves will turn yellow. If the plant gets too much water, the mulch will make the leaves too wet and the yellowing will happen.
Mildew – The leaves may be affected by a fungal disease known as mildew. The disease will cause the leaves to yellow.
Fungus – The leaves may be affected by a fungal disease known as fungus. The disease will cause the leaves to turn yellow.
Toxicity - The leaves may be affected by a chemical that is in the soil. If the plant is being fed with too much fertilizer, the leaves may turn yellow. If the plant is not getting enough fertilizer, the leaves will turn yellow.
Other Reasons - There are other reasons that can cause the leaves to turn yellow. One reason is that the plant has become stressed and is not getting enough light or it may be the result of a drought. A yellowing of the leaves can also be the result of a disease and is something that should be taken seriously. When dealing with these types of problems, it is best to call a reputable local pest control specialist.
Call us today to find out how our pest control treatments can help get your garden back to its regular garden beauty!
It's true that insects in the garden can often make life much easier for gardeners, but there is a flip side to this. Often, the pests that we want to control actually make it easier for them to survive and for the entire garden to flourish.
A perfect example of this comes in the form of garden bedding plants and garden ornamentals. These plants include many flowers, shrubs and trees that are so beautiful they are often brought into the home to enhance a home's beauty.
Unfortunately, the same plants can serve as a home for garden pests. Bedbugs, flies, ants, slugs, mites, spiders and aphids can be found in gardens. It's possible for