Zobrazeno 1 - 10
of 77
pro vyhledávání: '"W. G. Van Herk"'
Autor:
W. G. van Herk, Robert S. Vernon
Publikováno v:
Potato Research. 60:269-285
Three species of wireworms (Coleoptera: Elateridae) known to cause severe damage to potatoes in Europe and Asia have been introduced to Canada and are now well established as pests in the westernmost province of British Columbia (BC) (Agriotes obscur
Autor:
Robert S. Vernon, A. Latraverse, G. Labrie, Julien Saguez, J. De Almeida, J. Moisan-De Serres, W. G. van Herk, J-P. Légaré, M. Fréchette
Publikováno v:
Environmental Entomology. 46:814-825
Wireworms are important economic pests that attack the seeds and roots of numerous vegetable and field crops worldwide. A 5-yr study was conducted in the main agricultural regions of the province of Quebec (Canada), to identify and characterize the w
Publikováno v:
Journal of Applied Entomology. 139:154-157
Little is known about the natural enemies of wireworms (Coleoptera: Elateridae), but there are frequent anecdotal reports of (usually unnamed) stiletto fly larvae (Diptera: Therevidae) preying on various species. We observed larvae of Thereva nobilit
Publikováno v:
Journal of Pest Science. 87:619-627
Two exotic European click beetle species, Agriotes obscurus and Agriotes lineatus, were introduced into the lower Fraser valley of British Columbia over a century ago, and are now predominant pests of a number of arable crops. A semiochemical-based m
Autor:
Roderick P. Blackshaw, Robert S. Vernon, W. G. van Herk, Carly M. Benefer, Jonathan Ellis, Mairi E. Knight
Publikováno v:
Journal of Pest Science. 86:19-27
Click beetle larvae (wireworms) are significant crop pests in Europe and North America. In Canada, there are ~30 economically important species which are morphologically difficult to identify, but for which sequence data are lacking. Accurate knowled
Publikováno v:
Journal of Economic Entomology. 101:375-383
Publikováno v:
Environmental Entomology. 37:534-545
Publikováno v:
Journal of Economic Entomology. 101:375-383
Ten insecticides representing seven chemical groups were applied at various concentrations topically by using a Potter Spray Tower to evaluate their relative toxicities on the European wireworm Agriotes obscurus L. (Coleoptera: Elateridae). Wireworms
Publikováno v:
Environmental Entomology. 37:534-545
A soil-less bioassay arena to test repellency of wireworms (A. obscurus) to insecticides and carrier solvents is described. The bioassay and variables measured distinguish between shorter-range (contact and/or volatile) and longer-range (volatile) re
Autor:
W. G. van Herk, Robert S. Vernon
Publikováno v:
Entomologia Experimentalis et Applicata. 126:228-232
Late instars of the Pacific Coast wireworm, Limonius canus (LeConte) (Coleoptera: Elateridae), were exposed to wheat seeds treated with tefluthrin at 10 g active ingredient/100 kg wheat seed, for 2 min, at 10,15,20, and 25 °C. All wireworms were mor