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Nov 3, 2015 2:00 PM CST
Thread OP

I have a sad rosemary, been carefully culturing it for 4 years and it has been a struggle. It is now blooming on one branch, but other branches have scale (blooming one does not)...how can I remove ALL the scale? I used a Qtip and alcohol to remove a lot but know there is more.....
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Nov 8, 2015 10:20 AM CST
Name: woofie
NE WA (Zone 5a)
Charter ATP Member Garden Procrastinator Greenhouse Dragonflies Plays in the sandbox I was one of the first 300 contributors to the plant database!
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Here's a link to an article with a list of pests and some suggestions for control:
http://garden.org/ideas/view/p...
Confidence is that feeling you have right before you do something really stupid.
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Nov 8, 2015 11:42 AM CST
Name: Elaine
Sarasota, Fl
The one constant in life is change
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That's a good article, but I notice it doesn't include any of the new line of organic approved insecticides containing Spinosad.

Since your plant is an edible houseplant, you don't want to use any noxious chemicals on it. You need a method that is safe for your consumption (I assume you use the rosemary leaves for cooking?)

I'd try a home made oil spray consisting of two tsp. of cooking oil plus a couple of drops of dish soap mixed in a quart of water in a spray bottle. Shake it up so the oil distributes, and keep shaking it as you spray. Cover the whole plant, including stems and undersides of the leaves with a spray of the oil and leave it on for an hour or so. Then rinse the whole plant off with water (or a spray with a tiny bit of just dish soap) to remove the oil.

Repeat this treatment in 5 days to a week, then again in another week. The oil smothers the insects, but you must repeat the treatment in case there are eggs that will hatch after the first treatment. Repeating kills off the succeeding generations.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
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Nov 8, 2015 12:40 PM CST
Name: woofie
NE WA (Zone 5a)
Charter ATP Member Garden Procrastinator Greenhouse Dragonflies Plays in the sandbox I was one of the first 300 contributors to the plant database!
The WITWIT Badge I helped plan and beta test the plant database. Dog Lover Enjoys or suffers cold winters Container Gardener Seed Starter
Oh, good suggestions! Thumbs up Heh, I don't eat rosemary, so I didn't think of that.
Confidence is that feeling you have right before you do something really stupid.
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Nov 9, 2015 12:01 AM CST
Name: David Laderoute
Zone 5B/6 - NW MO (Zone 5b)
Ignoring Zones altogether
Seed Starter Avid Green Pages Reviewer Garden Ideas: Level 1
Good luck. Scale is a tough one to kill. My experience with it on many different types of plants is it is one tough cookie.
For ornamentals and non-edibles, I start with insecticidal soap. When that doesn't work, move to Neem oil. When that doesn't work, move to bigger guns. Scale has killed far too many of my expensive plants.
Seeking Feng Shui with my plants since 1976
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