Scale
My jasmine is approx.6 yrs old and it winters inside next to a humidifier. Has dropped a lot of leaves which doesn’t concern me as also has 4″ new growth. What does concern me is the underside of leaves appear to have scale. Only these bumps don’t seem to be bugs. Plus are quite small. Any ideas? Thank you!
The first sign of scale is the sticky honeydew on the leaves/stems. Underneath the bumps(which protect them from sprays) are eggs and crawlers which eventually crawl out but are difficult to detect because they are clear in color. It is at this stage, that they are vulnerable to sprays, and if treated can be controlled.
Persistent spraying is important. Neem oil can be used twice a month for 2 months. Use 1 oz.(2Tbsp of Neem Oil , 1 1/2 tsp dishwashing detergent to one gallon of water. Another recommendation for shiny-leaved plants only is Cedoflora, which is low in toxicity, safe and effective. You can also try to scrape off the bumps with your fingernail. A stronger option is Orthene, which is a systemic pesticide. It renders the whole plant as poisonous and insects die after feeding on it. It smells bad and should be used with extreme caution. (Never indoors). Follow manufacturers direction for safe use.
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I have a mandevilla vine and am bringing it indoors for the 2nd winter. My question is last year I brought it in and it got a white scale on it. I thought I lost it. But it survived when I took it out I cut some of the winter growth off and it did fine. What is this white scale and how do I get rid of it if it does this again this winter.
Comment by Diane Blumbugh — 11/30/2006 @ 8:15 am
Hello,
I have a Confederate Jasmine that a purchased a few months back. It has lost all its blooms but is growing quit well. I live about 1 hour north of Tampa Bay. It gets alot of morning sun. I’ve notice that there is a stick black substance on the end of some of the stems. Could this be causing it not to flower? Also what should I use to treat this bug? Also can I treat the plant for the bug and fertilize it at the same time? Thanks Dianne
Comment by Dianne — 3/26/2007 @ 7:38 am
Is there any way to remove sooty mold and scale from an 80 year old gardenia. I have tried washing each leaf, but there are thousands on this plant. It was my grandmother’s plant.
Is this plant indoors or outdoors? See above article for treatments..
Comment by Nancy Kimmel — 10/27/2007 @ 12:58 pm