Need advice for (slightly) ill Dieffenbachia

adambr3May 20, 2014

I've had this Dieffenbachia for about 8 years. It's 5 feet tall and is fairly healthy, but it is having issues.

Symptoms: Clear, sticky substance on stems and stock, but there is no substance on leaves (see photo). Flower buds turn brown and die before opening.

One to two leaves turn yellow/die per week but, otherwise, the leaves, including the underside, are clean and healthy. The plant has not been moved and gets good, natural light. No evidence of scale (I had a plant once that had this and can recognize it).

I can see no bugs anywhere. I'm not a knowledgeable gardener by any stretch, but I do know honeydew is a sign of aphids. However, wouldn't I at least see some specks (bugs) somewhere?

Any help/advice you can provide would be very appreciated.

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christine1950

Looks like mealybugs to me. Others will give you better advice.

    Bookmark   May 21, 2014 at 7:40AM
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pelargonium_gw

There is definitely something on the plant, I too would guess mealybugs. Is there little dots of a cottonlike stuff?

    Bookmark   May 21, 2014 at 6:32PM
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adambr3

I'm not seeing anything dusty/cotton-like. (The dots in the photo are specs of sticky sap.) Maybe it's a very light infestation? I guess I should do the soapy spray treatment, see if that helps?

    Bookmark   May 23, 2014 at 8:00AM
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