The young Lobate Lac Scale looks like a tiny red dot to the naked eye.
That tiny red dot comes with a big appetite.
"It was immediately identified as a potential serious problem," said Darcy Oishi, Biological Control Section chief for the Department of Agriculture's Plant Pest Control Branch.
He said the Lobate Lac Scale creates a protective dome over itself, sometimes two, and then hunkers down for a feast.
"As it feeds it sucks on the juices of the plant," he said.
It then spits out what is called a "honey dew," which then turns into black mold.
"Actually this whole branch is covered with sooty mold," he told KITV reporter Lara Yamada, as they looked at an Ulei bush, covered with the black stuff.
Oishi equated it to a layer of soot covering the solar panels on a house, which of course, doesn't work well without sunlight.
"So, you have multiple problems and that reduces the plant's overall health, he said.
Groundskeepers told Oishi an 80-year-old banyan tree that was cut down over the weekend was healthy in August.