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Region 2 - Treasure Valley >> Ada County >> Rush Skeletonweed Bloom Panorama >> Biocontrol Damage Video

Biocontrol Damage Video

Bryan Dallolio holds a Rush Skeletonweed plant up to the camera and says - I want you to notice that even down here in the root is that milky sap oozing out from where I tore it off. He brings it up closer to the camera lens to show the sap and comments "It's all sticky". He says this plant is identified back in it's bolt stage by these spiny red hairs that point downward and he points to the stem. Then he points further up the stem and says to look here at this damage, showing a brown area on the stem and says that this is characteristic of the rust which is a rust bacteria as he understands it, that forms on these Rush Skeletonweeds and they interrupt chlorophyll production and they make this plant less hardy. Of course, when we get further down the road, we start getting the stem boring midge. He points further up the plant and stem. It's damage shows up in the seed head area as deformed seed heads. Notice how there are way too many and none of them are fully mature.

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