@book{ab4acef29b984093b1dcd5a137ac081a,
title = "Problems in the control of the fruit tree red spider mite, Panonychus ulmi (Koch), in orchards in the Netherlands",
keywords = "plantenziekten, plantenplagen, gewasbescherming, plantenziektekunde, afwijkingen, planten, vruchtbomen, boomgaarden, nederland, plant diseases, plant pests, plant protection, plant pathology, plant disorders, fruit trees, orchards, netherlands",
author = "{van de Vrie}, M.",
note = "Overdr.: Proceedings of the International congress of acarology, 2nd, 1967,(1969), 525-532",
year = "1969",
language = "English",
series = "Mededeling / Instituut voor plantenziektenkundig onderzoek",
number = "no. 533",
}