Tag Archives: leaf

Apple oak gall

Apple oak gall (Amphibolips confluenta or Amphibolips quercusinanis), backlit to show leaf-like venation. Second photograph is a cross section showing where the wasp larva develops. I’d love to know what the spotting does, if anything. Cynipid wasps love oaks for some … Continue reading

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Mutant milkweeds

Below are some photographs of strange growths on a patch of Asclepias syriaca I visited several weeks ago. From the few publications I’ve found, enations can be caused by viruses (Geminiviridae, Luteoviridae, etc.), and thus could be transmitted to nearby individuals via insect vectors or by the connected … Continue reading

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