Question About Soft Caress Mahonia

Filed Under: Shrubs, Insects, Insects · Keywords: Plant, My, Plants, Hi, Other, Insects · 1822 Views
several of my plants have lost leaves while others look normal. Could the ones loosing leaves have insects? The ones close to the house are the ones that look bad-so it is not cold weather( and we have had just one day of 20degree weather. We have had these plants several years and this is the first time this has happened. We have had some very cold weather before and not much this year.


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Answer #1 · Maple Tree's Answer · Hi Carol-There are several things that may be causing your mahonia to drop its leaves. At times of the year some plants will naturally lose some of their older leaves. This is natural for evergreen plants and may not happen every year. Are these mainly older leaves or are all the leaves throughout the plant dropping? Are the leaves yellowing then turning brown before dropping? There are several sap sucking insects that can damage the mahonia causing premature dropping of leaves. Inspect the leaves closely especially the underside of the leaves. Look for small insects, small holes in the leaves, spotting on the leaves, or other damage that is unusual. Look for any shinny sticky looking substance that may indicate a substance called honeydew left by some insects. Fungal leaf infections such as fungal rust, mildew, or leaf spot can also cause discoloring of the leaves and dropping. Inspect the leaves for any discoloration, spotting, or markings such as black, brown, or reddish rings on the top or underside of the leaves. Much of the time fungal disease is caused by too wet a soil or moisture on the leaves from rain or sprinklers that does not dry quickly. I have found too wet a soil is most often the reason for leaves to prematurely drop. Too little water can also brown the leaves causing them to drop. I would check the soil making sure the soil is not too wet. Digging down 6 to 8 inches in spots around the plants the soil should feel cool and moist but never to dry or wet. Have you had a lot of rain this year? Being closer to your home could any rain runoff be gathering more so in the areas of the affected plants? If you can upload a picture of the plant and an upclose picture of the leaves that have dropped it may help to find the problem. Above this and to the right of your name below your question you will see where you can upload any picture you have saved on your computer. Inspect the leaves closely and check soil moisture along with answering my questions. Let me know what you find and I will get back to you as soon as possible. You can use the 'Comment About This Answer' box below to reply.

John)


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Carol Vaughan

Carol Vaughan · Gardenality Seed · Zone 8A · 10° to 15° F
Thank you, John, I will look into these possibilities.

2 years ago ·
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Maple Tree

Maple Tree · Gardenality Genius · Zone 10A · 30° to 35° F
Carol-Let me know anything you find or notice and I'll get back to you with any help I can.

2 years ago ·
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