As if the 1998 introduction of olive fruit fly into California weren't enough, UC Cooperative Extension scientists have now found shopping center olive trees in San Diego and Orange counties infested with olive psyllid, according to a story in Western Farm Press.

“Psyllids are some of the most fecund insects I have worked with,” the story quoted UCCE IPM entomology advisor Marshall Johnson.

(Fecund has two definitions: intellectually productive and fertile. No doubt that Johnson's meaning was the latter.)

The article said Johnson toured several San Diego County sites with infested ornamental olive trees in July, but found very...