scale - 3: a flaky deposit, in particular:
a white deposit formed in a kettle, boiler, etc., by the evaporation of water containing lime. tartar formed on teeth. a coating of oxide formed on heated metal.
scale insect - a small insect with a protective shieldlike scale. It spends most of its life attached by its mouth to a single plant, sometimes occurring in such large numbers that it becomes a serious pest.
scale² - 1. ... f. The protective covering of insects of the family Coccidae
, which remains when they die and protects the eggs and afterwards the young beneath it; hence, = scale-insect
; also, the diseased condition of plants caused thereby.
1822 Trans. Hort. Soc. (1826)
(5)scale - ... 8 a or scale insect also scale louse or scale bug :
any of numerous small very prolific insects constituting Coccidae and related families of the suborder Homoptera, having young that suck the juices of plants, adult males that lack mouthparts and do not feed and have a single pair of wings, and adult females that are usu. permanently attached to the host plant, structurally degenerate with most of the external differentiation lost, and often obscured by a waxy or powdery secretion that protects the female and her eggs, and including many extremely destructive pests of economic plants as well as a few that yield valuable products -- compare COCHINEAL, LAC b :
infestation with or disease caused by scale insects [our roses are full of scale this year]
I now have scale on all four schef[flera] plants.
You have scale. I've never had an infestation that large so I can't tell you ...
It was happy in the beginning, new growth, but now it appears to have scale.
Q I have scale on several of my houseplants. How can I safely control it? A In a nutshell: The only surefire cure is to throw the affected plants away.
Q. I was told I have scale on several of my houseplants.
I've never had scale on any of my houseplants so I don't know if the scale falls off or if you have to scratch it off.
It is a very rare occurance I have a pest problem on any house plants. Haven't had scale, aphids, a mite or anything else in at least 3 years.
In it's second year it had scale, I treated it and thought it was gone
Question: I am wondering what causes scale on house plants. The plants I have that get scale are not near other plants.
My Calamondin got scale (I think it came with it)
The little brown spots aren't scale, are they? ... If they're raised and you can scrape them off, you've likely got scale -- not uncommon on these ferns.
Most common problems are scale, mealybugs, and spider mites.
The other problem could be scale causing the plant to defoliate.
The fuzzy stuff on the trunk could be scale and would need to be sprayed with a dormant oil in January.
Is this scale on shefflera? ... I have tried to scrape off these growths, but it doesn't come off easily, and I have seen/scraped scale off plants before and this isn't like that. ...
That is not scale, you would know if it was. Scale is almost impossible to get rid of. When a plant is infested with scale, a sticky honey like substance drips and accumulates on the branches.
As it turned out it was Scale. ANd the FInger Lime was full of it.
To most speakers, I don't think 'scale' is really normally the word for the individual bug, but rather for the condition caused by it: the infestation as a whole, the diseased appearance of the leaves, etc. I assume it's because it looks like a flaky deposit or buildup (etymologically/conceptually similar to scale on your water pipes or your teeth), but that's just a guess.
But in any case, it's basically used as a noncount noun: a plant can have scale, get scale, suffer from scale, etc., but you can't (at least, I don't think you can) say *'a scale' or *'scales' the way you can say 'a scale insect' or 'scale insects.'
People use 'scale' to mean all the collective symptoms, but they call it 'it,' like a disease, a mysterious affliction in and of itself. If we had to paraphrase it, we'd probably just say 'that icky stuff.'
So 'scale - Schildlaus' still seems a bit misleading, or perhaps at best only formal/technical. 'Scale insect' is definitely worth adding, and for the normal, by far more common usage of 'scale,' I would suggest something like 'Schildlausplage' (apparently more common than 'Schildlausverseuchung'?), 'Schildlauskrankheit,' etc.