Amaryllis Bulb Damage

Daniel Gill  |  7/15/2015 4:00:10 AM

Some of my amaryllis bulbs appear to be eaten. The foliage has turned yellow, and then I noticed that the bulb is damaged. I did some research online, but that only confused me. I think it could be nematode damage. What do you think, and what should I do to control it? I would appreciate any advice you can give me. I have many amaryllises in my garden, and I am afraid I may lose all of them.

Thanks, Lisa B.


Chewing damage to amaryllises this time of the year in southeast Louisiana is often due to insects – such as grasshoppers.

Trim off the yellow and most badly damaged leaves. Apply a couple of inches of mulch around the base of the plants to cover the bulbs and reduce the chances they will get chewed on.

This damage is not life threatening and is well tolerated by the bulbs (this kind of damage happens to amaryllises all over the area every year).

Control is optional, but you could treat weekly through the summer with carbaryl (Sevin) or permethrin (Bonide Eight and other brands). You may still see some damage despite using the insecticide, but regular applications should reduce it.

Dan Gill
Consumer Horticulture Specialist

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