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PWDPlanar Waveguide Devices
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PWDPink, warm, and dry (skin assessment)
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References in periodicals archive ?
Pine wilt disease (PWD) has caused devastating damage to pine forests worldwide, especially in Japan and China (Aikawa et al.
379-388 In Mota MM, Vieira P [eds.], Pine Wilt Disease: A Worldwide Threat to Forest Ecosystems.
Pine trees affected by pine wilt disease usually die within few months.
The incidence of pine wilt disease depends on beetles' density because pine sawyer beetles are the source of transmission of pinewood nematode.
Pine wilt disease (PWD) is caused by the pinewood nematode Bursaphelenchus xylophilus.
This process is repeated and iterations stopped if the values of the unknowns at the previous iterations are very close to the ones at the present iterations [21].We have chosen the same set of weight factors [A.sub.1] = 0.01, [A.sub.2] = 0.001, [B.sub.1] = 50, and [B.sub.2] = 200 initial state variables [S.sub.h](0) = 300, [I.sub.h](0) = 50, [S.sub.v](0) = 65, and [I.sub.v](0) = 20 to illustrate the effect of different optimal control strategies on the spread of pine wilt disease in a population.
Chinese officials say coniferous solid wood packing materials from the United States carry pinewood nematode, a pest associated with pine wilt disease.
Among them, some important wilting diseases of trees, such as the pine wilt disease and the red ring disease of palms, are caused by nematodes that have intriguing association with insect vectors (Giblin-Davis 1993).
Pine wilt disease (PWD) is caused by the pinewood nematode Bursaphelenchus xylophilus Nickle, which is vectored by the Japanese pine sawyer beetle Monochamus alternatus.
The most notorious examples of entomophilic nematode introductions around the world in the past 100 years involve 2 lethal plant diseases, pine wilt disease (PWD), caused by the pine wood nematode (PWN), Bursaphelenchus xylophilus (Steiner & Buhrer), and red ring disease (RRD) caused by the red ring or coconut palm nematode (RRN or CPN), B.
Pine trees are affected by pine wilt disease, wilt, and usually die within a few months.