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Tetranchus urticae

The red spider (Tetranchus urticae, Koch) was a major pest on the hop but with the use of organophosphorus insecticides it virtually disappeared. However, resistant strains appeared in the late 1960s which responded to... [Pg.38]

See other pages where Tetranchus urticae is mentioned: [Pg.1169]    [Pg.1169]    [Pg.582]    [Pg.1169]    [Pg.1169]    [Pg.582]   
See also in sourсe #XX -- [ Pg.418 ]



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Urtica

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