Orchids forum: Problem on my Blc Chia Lin

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Name: Elaine
South Sarasota, Florida (Zone 9b)
The one constant in life is change
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dyzzypyxxy
Dec 2, 2012 9:23 AM CST
Here are pictures of my poor afflicted Chia Lin, a big plant that I've had just under a year. It put up four big new healthy pb's this spring/summer, and has now blasted a total of four sheaths on those.

Seems like I've had it hiding in the foliage for too long, something's infected it. Anybody got an idea what this is and how to treat it? The white fuzzy stuff wipes off with a finger, not mealybugs, maybe fungal infection of some sort?

Where the white fuzzy stuff is on the back of the leaf, the front of the leaf has a yellow spot. This leaf is the worst. Here are pictures of both sides.Thumb of 2012-12-02/dyzzypyxxy/565174 Thumb of 2012-12-02/dyzzypyxxy/4545d5
Thumb of 2012-12-02/dyzzypyxxy/a34ad8 Thumb of 2012-12-02/dyzzypyxxy/835105
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: Carol
Santa Ana,Ca. (Zone 10b)
Sunset zone 22
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ctcarol
Dec 2, 2012 9:36 AM CST
I'm not sure, but I think it is the juvenile stage of a soft scale insect. I've been battling the same thing, so would love to hear from someone who knows for sure.
Name: Elaine
South Sarasota, Florida (Zone 9b)
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
Herbs Orchids Birds Garden Ideas: Level 2 Garden Sages Celebrating Gardening: 2015
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dyzzypyxxy
Dec 2, 2012 10:54 AM CST
I'm thinking you're right, Carol. I just took a damp paper towel and wiped all the white stuff off the back of one leaf.

Yellow color came off on the paper towel from under the white fluffy areas, so possibly bug juices. Could not id anything even with a magnifying glass, though.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: Ursula
Fair Lawn NJ, zone 6b
Charter ATP Member Spiders! Native Plants and Wildflowers Region: Pennsylvania Greenhouse Cactus and Succulents
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Ursula
Dec 2, 2012 12:52 PM CST

Moderator

Scales, scales scales!! Isolate immediately please and really inspect every Orchid nearby, especially Cattleyas. They get under the papery skin covering pseudobulbs and into every nook and cranny. Cymbidiums are magnets for these bugs!!
I would get the Bayer treatment in the blue bottles containing Imidacloprid. I myself would take a plant that badly infected and submerge it totally for a day.
http://www.bayeradvanced.com/rose-flower-care/products/all-i...
The dilution I use is 2 ozs/Gallon water.

If it weren't for this type of scale, I would be such a happy camper!! My greenhouse is never totally free of it, but I think with frequent inspection i manage to stay on top of it. Not always easy!!

Hope that helps!
Name: Jim Hawk
Odessa, Florida (Zone 9b)
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hawkarica
Dec 2, 2012 1:09 PM CST
Elaine, Google 'Diaspis boisduvali'

Jim
Name: Elaine
South Sarasota, Florida (Zone 9b)
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
Herbs Orchids Birds Garden Ideas: Level 2 Garden Sages Celebrating Gardening: 2015
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dyzzypyxxy
Dec 2, 2012 2:28 PM CST
Got it, Thanks Jim, and Ursula you're right of course. That's what it is. I tip my hat to you.

I first read the UF article on this, but they also had a link to the article on the AOS site here
http://www.aos.org/Default.aspx?id=137 It was the best.

I cleaned the whole plant with a soft cloth soaked with Neem oil solution and isolated it. So far, no other plants seem to have any signs. Now repotting and chemical warfare shall commence! Onward! Sticking tongue out

Just what I needed when I'm leaving town for a week, next Sunday! My bro will be here but knows nothing about plants so . . . will have to treat them just before I leave, then hope for the best.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: Kathy
Western MA

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boojum
Dec 2, 2012 4:45 PM CST
I have lots of scale too but I am vigilant. I personally found that neem did not work as well as the Bayer. But I have also used pure isopropyl alcohol with a tablespoon of peppermint soap (Dr.Woods). I've gone back to Bayers for the thrips who have invaded lately.
Name: Ursula
Fair Lawn NJ, zone 6b
Charter ATP Member Spiders! Native Plants and Wildflowers Region: Pennsylvania Greenhouse Cactus and Succulents
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Ursula
Dec 2, 2012 4:51 PM CST

Moderator

I agree , I do spot cleaning like that too, and I find that a really good infestation needs a decent systemic, right? Spot cleaning with a soft cloth might not get into every corner where they hide really well and come out to smirk at you! Rolling my eyes.
Name: lindsey
wesley chapel, fl
Charter ATP Member I was one of the first 300 contributors to the plant database!
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sugarcane
Dec 2, 2012 5:06 PM CST
this does not sound fun..or easy...
lindsey
Name: Elaine
South Sarasota, Florida (Zone 9b)
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
Herbs Orchids Birds Garden Ideas: Level 2 Garden Sages Celebrating Gardening: 2015
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dyzzypyxxy
Dec 2, 2012 6:18 PM CST
I got the "bomb 'em" advice from Laurel on the other forum, too. Lindsay, it's actually too darned easy when you use the 'big guns' like the Bayer systemic. Organic controls are much more work.

I have the Bayer 3-in-1 concentrate, so will let the plant recover for a few days and then re-pot, douse and spray with Bayer right before I leave for my trip.

That oughta get the little, you know, bugs.

Thanks all!
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: Ursula
Fair Lawn NJ, zone 6b
Charter ATP Member Spiders! Native Plants and Wildflowers Region: Pennsylvania Greenhouse Cactus and Succulents
Forum moderator I was one of the first 300 contributors to the plant database! Photo Contest Winner: 2014 Ponds Lover of wildlife (Black bear badge) Region: New Jersey
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Ursula
Dec 2, 2012 6:33 PM CST

Moderator

I would suggest to simply soak it in a bucket. This way you are not spraying it all over the place either. As always - use as directed, wear gloves etc. A gentle toothbrush will dislodge dead bugs after the treatment.

Btw regarding the "Big Guns" - the active ingredient in the Bayer stuff is Imidacloprid which is also used in Flea collars for Dogs, see Advantix.

Name: Jim Hawk
Odessa, Florida (Zone 9b)
Charter ATP Member Hibiscus Birds Bromeliad Greenhouse Master Gardener: Florida
Garden Photography Region: United States of America Roses Tropicals Region: Florida Orchids
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hawkarica
Dec 2, 2012 7:44 PM CST
I use Orthene, 1 tbls per gallon of water. It is recommended by all of the orchid folks here.

Jim
Name: Ursula
Fair Lawn NJ, zone 6b
Charter ATP Member Spiders! Native Plants and Wildflowers Region: Pennsylvania Greenhouse Cactus and Succulents
Forum moderator I was one of the first 300 contributors to the plant database! Photo Contest Winner: 2014 Ponds Lover of wildlife (Black bear badge) Region: New Jersey
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Ursula
Dec 2, 2012 7:55 PM CST

Moderator

Orthene will work perfectly too.

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