Sempervivum and Jovibarba forum: Semp Pests / Disease

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Name: Patty
Washington State (Zone 8b)
Celebrating Gardening: 2015
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Patty
Feb 16, 2015 1:54 PM CST
Help! These tiny white specks have legs, which I can see now that I have blown the pic up Crying Are these mites? they don't seem to be moving so maybe they are dead mites??? And now the semp is diseased! This is happening to several of my potted semps. Crying Crying What can I do?

Thumb of 2015-02-16/Patty/e3b1fd Thumb of 2015-02-16/Patty/65b306

Patty 🌺
Name: Kate
S Wales UK (Zone 9a)
Region: Wales Region: United Kingdom Cat Lover Sempervivums Cactus and Succulents Container Gardener
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Eviesmummy
Feb 16, 2015 1:59 PM CST
I don't l know what they are, but Eeeek! Blinking
Kate UK
Name: Julia
Washington State (Zone 7a)
Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator I was one of the first 300 contributors to the plant database!
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springcolor
Feb 16, 2015 2:47 PM CST
No expert here but I think aphids, might try a bit of soapy spray. Let is what the others say. Seems Greg had bugs once and used a solution of rubbing alcohol.
@valleylynn @ggs @jungleshadows
I don't think that 2nd semp is dead.
Sempervivum for Sale
Name: Patty
Washington State (Zone 8b)
Celebrating Gardening: 2015
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Patty
Feb 16, 2015 3:04 PM CST
I wondered if they were aphid but I never noticed any lives ones - assuming these are dead ones?
Patty 🌺
Name: Julia
Washington State (Zone 7a)
Garden Photography Region: Pacific Northwest Celebrating Gardening: 2015 Forum moderator Plant Database Moderator I was one of the first 300 contributors to the plant database!
Dog Lover Foliage Fan Greenhouse Container Gardener Heucheras Sedums
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springcolor
Feb 16, 2015 3:06 PM CST
Think they would come off with a soft tooth brush?
Sempervivum for Sale
Name: Patty
Washington State (Zone 8b)
Celebrating Gardening: 2015
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Patty
Feb 16, 2015 4:02 PM CST
They brushed right off. I think they were aphid nymphs. What would you do w/ the semp in the third pic? It's the worst.
Patty 🌺
Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Feb 16, 2015 4:50 PM CST
Patty,

Semps are tough, I'll bet it will recover. If it's one of which you have many plants, just pitch it.

Just back in from the yard. GORGEOUS day here in Oregon and the seedlings are starting to color up nicely.

Kevin
Name: Patty
Washington State (Zone 8b)
Celebrating Gardening: 2015
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Patty
Feb 16, 2015 5:58 PM CST
Whew! Was afraid this might spread! Yes, beautuful day here. What a difference a few days of SUN make in the semps. Hurray!
Patty 🌺
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Feb 16, 2015 6:36 PM CST

Moderator

I agree with the others, they should be fine once they dry out and get healthier. The aphids are drawn to the ones that are struggling. If it is just a few plants I would use q-tips and alcohol. Or even make a spray bottle of alcohol and lightly spray them.
Name: snarfie
netherlands
Sempervivums Cactus and Succulents Amaryllis Bulbs Pollen collector Region: Europe
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snarfie
Feb 19, 2015 9:13 AM CST
I also had this, and it only develops when they don't have rain, because rain washes those little creatures off, and when they are rained off, they mostly die. When you don't let them be rained, they will first stop growing and then die
plants everywhere!
Name: Patty
Washington State (Zone 8b)
Celebrating Gardening: 2015
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Patty
Feb 22, 2015 1:10 AM CST
I usually get some aphids on the nearby rose bush - but this year they went for the semps. You're right, the rain or hose wash them away Thumbs up
Patty 🌺

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