Spray the plants in dry and cool conditions when the temperature is below 29 degrees Celsius. Always read the label and instructions carefully about the applications or precautions to avoid pesticide burns. 9. Fertilizer Burn Extremely high or low temperatures can result in yellowing leaves. Protect plants from drafts and temperature fluctuations.

Leaf deformities with discolored or yellowing veins, and tissue indicate your plant is suffering from nutrient deficiency. When scale insects heavily infect the plant, it suffers from weak growth and chlorotic (yellow) leaves. Whiteflies: They infect several ornamental and vegetable plants. Whiteflies lay their eggs on new leaves. They feed on the leaves, which produce stippling of leaves, leading to yellow, dry, and distorted leaves. If you are sure you are watering the plant well, your plant might be starving for sunlight or scorching from excessive light. Not receiving enough light can also turn the leaves yellow.Calcium deficiency: The leaves have yellow or brown spots surrounded by brown edges. Add lime to acidic soil, and use gypsum for alkaline soil . If the lower leaves are yellow it is mostly because of old age. Here is a picture of a rubber tree I took Mosaic virus: It is a viral disease affecting various horticulture plants. The main symptoms of Mosaic virus are yellow or white spots/ streaks on the plant foliage, yellowing veins, and stunted growth. Do not spray the plant in scorching weather. Horticulture oils are effective against all stages of this pest infection. You can use fertilizers or organic food for plants to overcome nutrient deficiencies. You can read more about soil nutrients and fertilizers in our extensive article. 5. Diseases

Insufficient sunlight or excessive light can cause yellow leaves. Reposition plants for proper lighting. Pinch and prune infected parts of the plant. You can get rid of aphids using natural and organic control methods. You can take soil samples from various areas in your garden to a local lab or gardening center for soil testing. The test will provide the pH level and nutrient deficiencies of the soil. The soil test data can help you fix nutrient issues, choose the right fertilizers, and inform you about any soil problems specific to your geographic region. How can winter dormancy cause yellow leaves on plants?If aphids have infested your plant, the growth stunts, and the leaves will curl, wilt or become yellow.

Overwatering can waterlog the soil. Without oxygen, roots start to die, and the plant starts yellowing.Plants that get too little light start to yellow on the lower leaves, and eventually, the leaves start dropping . Use a bug blaster to remove the pests from the plant by using a strong stream of water. Apply Diatomaceous earth for long-term protection from aphids. Plants infected with leaf spots will have yellow leaves, and the leaves may drop. Most leaf-bearing plants are susceptible to this disease.

Zinc deficiency: The leaves are discolored, and the tissue between veins is yellow while the veins are green. Spray the plant with kelp extract.Spider mites are difficult to see with the naked eye, but the main symptoms are webbings on the leaves and discoloration, as well as yellow leaves on plants. Natural leaf aging can cause yellowing of lower leaves. This is a normal part of the plant’s life cycle. You can use a garden fungicide when you first see the symptoms of powdery mildew and apply it again after 7 to 10 days to eliminate the disease. Then in winter, these are used by the plant roots to supply the nutrients for the plant. Removing the chlorophyll will cause the leaves to become yellow, orange, or red. If one or two leaves are yellowing slowly and steadily, your plant is experiencing the natural leaf-shedding process. Aging is a healthy part of the plant life cycle. FAQ Why are the leaves of my succulent turning yellow?