	AllExperts > Perennials
	Search

About Tom Alonzo
Expertise
I have been a gardener for 20 years with perennials both growing from seed and from nurseries. I went through the Master Gardener Program from Kansas State University Cooperative Extension Service and I answered questions on the Hotline a few years ago for the Wyandotte County Kansas Extension Service. I have also lived in the Florida, California, Hawaii, Arizona, Texas, Kansas and Missouri and am experienced with a variety of climates, soils and weather conditions.

Experience
I have been growing perennials for over 20 years now. I am self-taught mostly except for a master gardener class. I have experimented with all kinds of perennials including many that are not common to my area. I have read hundreds of books and grown hundreds of varieties of plants and hope to make it a business some day. I have become versed in botanical names and growing conditions and what I don't know off of the top of my head I can usually easily find in my vast array of research material and botanical and horticultural contacts. I especially enjoy experimenting with growing plants out of zone.

You are here: Experts > Home/Garden > Roses > Perennials > yucc PLANT

Perennials - yucc PLANT

Expert: Tom Alonzo - 10/22/2009

Question
QUESTION:     TOM,
     Sorry I forgot to include this question with my last question. We have a yucca plant that gets a powder substance in the form of spots can you tell be what to do to get rid of them, unless this is common.
                            Thanks
                                Don

ANSWER: Hi Don,
Thanx for your question. Can you be more specific about the powder substance on the yucca? Is this a hardy, outdoor yucca or a houseplant and where is are the spots located?
thx,
Tom

---------- FOLLOW-UP ----------

QUESTION:     Tom
     I assume this plant is a houseplant, the spots are all over the leaves.
                   Thanks
                        Don

ANSWER: Hi Don,
Thanx for clearing things up. Take a look at this link and let me know if this is what you have.
thx,
Tom

http://plant-disease.ippc.orst.edu/disease.cfm?RecordID=1160

---------- FOLLOW-UP ----------

QUESTION:    Tom
   I just had my wife look at picture of spots and she said no. Maybe I haven't been very clear. The spots,she says they look like spider poop, I ask her had she even seen spider poop and she said no. See what I have to work with. She can wipe the spots off with rag then they come back again, they look like powder.
                                 Thanks again
                                          Don

Answer
Hi Don,
Thanx for the additional information. It sounds like it's just powdery mildew or some kind of fungus. Does your wife water the plant with a spray of mist because if she does, this can cause white spotting. Otherwise, I believe it is just a powdery mildew. Always water this plant at the soil level or in the dish underneath the pot. If it is powdery mildew, try neem oil on the plant. Let me know if this works. If it does not, we have an indoor houseplant expert here who might be able to offer some alternatives.

I hope this helps.
Tom

Add to this Answer Ask a Question