Although “oak apples” look like round or potato-shaped fruit, these tan orbs are actually the homes of tiny wasps barely larger than grape seeds. These tiny insects lay their eggs in valley, blue and ...

New research on fossil galls -- abnormal plant growths caused, in this case, by tiny wasps -- helps reconstruct the local habitats of Southern California at the end of the last Ice Age. The La Brea ...

DEAR GARDEN COACH: Help! I recently discovered these crazy looking things on the leaves of my valley oak tree. I am wondering what is wrong, and what can I do to get rid of them? I know the tree is ...

County’s 10 oak species produce odd-shaped ‘nests’ that house and feed wasp larvae. One foolproof hiking strategy to keep young spirits up and prevent the “are we there yet?” syndrome is to turn your ...

Plenty of animals build their homes in oak trees. But some very teeny, tricky insects make the tree do all the work. “What nerve!” you might say. What … gall! And you’d be right. Oak galls are caused ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...

Here's a problem quite a few people have asked me about in the past few months: Live oaks that look scorched, drop more leaves than normal and have bead-like structures on the undersides of the leaves ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A new species of wasp discovered in the ...

The La Brea Tar Pits, the world's richest Ice Age fossil site, is famous for saber-toothed cats, mammoths, and giant sloths, but it also has numerous insect and plant fossils. New research on fossil ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...