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Contents - Proceedings of the Netherlands Entomological Society Meeting 09

Kaay, H.J. van der 1998.
Malaria control 100 years after Ross : the importance of vector control during the past century, now and beyond 2000 (p. 3-14 )

Knols, B.G.J. & W. Takken 1998.
The wide-scale use of impregnated bednets for malaria control in Africa: Impact on mosquitoes (p. 15-22 )

Dekker. T. & W. Takken 1998.
The role of carbon dioxide in host-seeking Anopheles gambiae sensu lato (Diptera: Culicidae) (p. 23-28 )

Harrewijn, P., P.G.M. Piron & M.B. Ponsen 1998.
Evolution of vascular feeding in aphids: an electrophysiological study (p. 29-34 )

Tol, R.W.H.M. van & J.H. Visser 1998.
Host-plant preference and antennal responses of the black vine weevil (Otiorhynchus sulcatus) to plant volatiles (p. 35-40 )

Visser, J.H. & P.G.M. Piron 1998.
An open y-track olfactometer for recording of aphid behavioural responses to plant odours (p. 41-46 )

Wäckers. F.L. 1998.
Food supplements to enhance biological control in storage systems: effects of hosts and honey on the longevity of the bruchid parasitoids Anisopteromalus calandrae and Heterospilus prosopidis (p. 47-52 )

Opitz, S. G. KÖhler & A. Mabelis 1998.
Local movement of the grasshopper Chorthippus parallelus (Zett.) (p. 53-58 )

Heitmans, W.R.B. 1998.
Body size and fitness in the hunting wasp Ampulex compressa (p. 59-65 )

Garms, L.M., O.E. Krips, C. Schiitte & M. Dicke 1998.
The ability of the predatory mite Phytoseiulus persimilis to find a prey colony: effect of host plant species and herbivore induced volatiles (p. 67-72 )

Otten, H., F.L. Wäckers & S. Dorn 1998.
Variation in vibrations produced by Pimpla turionellae (Hymenoptera: Ichneumonidae) (p. 73-74 )

Vandingenen, A., N. Macours, A. De Loof & R. Huybrechts 1998.
Study ofbaculovirus-host cell interactions at the molecular level (p. 75-76 )

Wingerden, W.K.R.E. van & N.M. Heeren 1998.
Does cattle grazing facilitate Stenobothrus stigmaticus (Rambur) (Orthoptera: Acrididae) by improving quality and accessibility of Deschampsia flexuosa? (p. 77-85 )

Nijs, L.J.M.F. den, C.J.H. Booij, R. Daamen, C.A.M. Lock & J. Noorlander 1998.
The effects of boundary strips on pests and diseases in adjacent crops (p. 87-92 )

Nijs, L.J.M.F. den, E. Boesewinkel, J.P.H. Zijp, F.W. Smeding & C.J.H. Booij 1998.
Methods to study the effect of ecological infrastructure on aphids and their enemies on winter wheat (p. 93-98 )

Hoogenboom, A., I.M.M.S. Silva, M.M.M. van Meer, M.M. Roskam & R. Stouthamer 1998.
Quality assessments of Wolbachia infected versus non infected lines of Trichogramma deion (p. 99-104 )

Silva, I.M.M.S. & R. Stouthamer 1998.
Indirect assessment of host acceptance and suitability of four Trichogramma species (p. 105-110 )

Pijls, J.W.A.M., G.J.J. Driessen, R.P.Th. ButOt, C.G.M. Conijn & J.J.M. van Alphen 1998.
Development of an environmentally friendly method to control the mealybug Phenacoccus emansor in iris bulb stores in The Netherlands (p. 111-116 )

Ester, A. & A. Evenhuis 1998.
Effect of plant density and seed treatment on the population of Thrips tabaci (Lind.) in leek (p. 117-122 )

Belder, E. den & J. Elderson 1998.
Suitability of leek for Thrips tabaci is reduced by intercropping with clover (p. 123-127 )

Poll, J.T.K., J.J.M. van Alphen & G.J.J. Driessen 1998.
Biological control of the asparagus beetle (Crioceris asparagi) using Tetrastichus asparagi (p. 129-130 )

Jochemsen, P., M. Schilthuizen & R. Stouthamer 1998.
Transmission of Wolbachia between Trichogramma species and their lepidopteran hosts? (p. 131-135 )

Tilborg, M. van & R. Stouthamer 1998.
Can a psr factor explain the coexistence of infected and un infected individuals in Trichogramma kaykai populations? (p. 137-144 )

Linden, A. van der 1998.
Effect of releasing the predatory stinkbug Podisus maculiventris (Say) against the noctuid Chrysodeixis chalcites (Esper) in sweet pepper (p. 145-149 )

Beest, M. te, T. Huigens & R. Stouthamer 1998.
Wolbachia induced transsexuality in terrestrial isopods (p. 151-154 )

Vierbergen, G. 1998.
Echinothrips americanus morgan, a new thrips in dutch greenhouses (Thysanoptera: Thripidae) (p. 155-160 )

Moreira, L., S. van Heusden & C. Mollema 1998.
Search for molecular markers for resistance against Liriomyza trifolii in tomato (p. 161-164 )

Burgt, W.A.C.M. van der, C. Budai, A. Fodor & A. Lucskai 1998.
Parasitism of western corn rootworm adults by Steinemema spp. and Heterorhabditis spp. (p. 165-170 )

Augustijn, C.H. 1998.
Flight activity and the decline of queen less honeybee colonies (p. 171-175 )

Eijnde, J. van den & A de Ruijter 1998.
Locustacarus buchneri (Acarina: Podapolipodidae) infection of bumblebee colonies (Bombus terrestris L.) (p. 177-178 )

Rademaker, M.C.J. & R. Taal 1998.
Foraging behaviour of bumblebees on Echium vulgare: are flower odour and scentmarking important for flower choice? (p. 179-184 )

Slaa, E.J., B. Ruiz, R. Salas, M. Zeiss & M.J. Sommeijer 1998.
Foraging strategies in stingless bees: flower constancy versus optimal foraging? (p. 185-190 )

Groot, A.T., J.H. Visser, R. Geerts, F.P. Drijfhout & T.A. van Beek 1998.
Behavioural response of Lygocoris pabulinus (Heteroptera: Miridae) to potential sex pheromone compounds (p. 191-195 )

Kelling, F.J. & C.J. den Otter 1998.
Houseflies: effects of age on olfactory responses (p. 197-200 )

Smallegange, C.J. & C.J. den Otter 1998.
Attraction of the housefly (Musca domestica L.) (p. 201-204 )

Greve, G.D., H.G. van der Geest, S.C. Stuijfzand, S. Engels & M.H.S. Kraak 1998.
Development of ecotoxicity tests using laboratory reared larvae of the riverine caddisflies Hydropsyche angustipennis and Cymus trimaculatus (p. 205-210 )

Groenendijk, D. & S.M.G. Lücker 1998.
A method for crossbreeding strains of chironomid midges (Diptera: Chironomidae) and its application to ecotoxicological studies (p. 211-216 )

Kooi, R.E., M. de Vries & P.M. Brakefield 1998.
The effect of drought stress in food plants on the wing pattern induction of the polyphenic tropical butterfly Bicyclus anynana (Lepidoptera: Satyridae) (p. 217-222 )

Ottenheim, M.M. & J. Kuijt 1998.
Has abdominal colour pattern variation in Eristalis arbustorum any thermoregulatory function? (p. 223-228 )