Simulation of the fluctuations of the grey larch bud moth / J. van den Bos and R. RabbingeThe isolating effect of greenhouses on arthropod pests : a case-study on Clepsis spectrana (Lepidoptera: Tortricidae) / J. van den BosThe isolating effect of greenhouses on arthropod pests and its significance for integrated pest management: a case-study on Clepsis spectrana (Lepidoptera: Tortricidae) / J. van den Bos