Career Information for an Aeronautics or Aviation Degree. Aeronautics or aviation is generally the science of flight, and this field may also include the manufacturing and design of airplanes and helicopters. Continue reading for an overview of the training, as well as career and salary info for some career options for graduates.
Public and private landowners are not required to control infestations of bull thistle that occur on their property in King County. Bull thistle is a Class C Noxious Weed in Washington, first listed in 1988. Because control is not required in the county, it is on the list of Non-Regulated Noxious Weeds for King County. For more information, see Noxious Weed Lists and Laws or visit the website of the Washington State Noxious Weed Control Board.
Pennsylvania smartweed (Persicaria pensylvanica / Polygonum pensylvanicum), which is native to Alaska and grows in the Pacific Maritime ecogeographic region, can be distinguished from spotted ladysthumb and curlytop knotweed by a combination of characteristics listed in Table 1 below.Gray.eeds are lens-shaped to three-angled, black, smooth, and shiny (Welsh 1974). Persicaria maculosa Similar species: Spotted ladysthumb can be distinguished from curlytop knotweed by the presence of stiff hairs that are up to 3.5 mm long on the margins of the leaf sheathes and erect spikes with deep pink flowers.