Environmental Entomology (1984) 13, 751-756
Gilles Boiteau (1984)
Effect of planting date, plant spacing, and weed cover on populations of insects, arachnids, and entomophthoran fungi in potato fields
Environmental Entomology 13 (3), 751-756
Abstract: The average daily abundance of arachnids, carabids, coccinellids, ants, staphylinids, mummified aphids, and entomophthoran fungi was the same in 15- and 36-cm within-row seed spacings and over a wide range of weed cover. Carabids were significantly less abundant in herbicide-treated plots. The tests confirm previous observations that late plantings can significantly reduce populations of Macrosiphum euphorbiae and Aphis nasturtii. Of the other arthropods monitored, only the carabids showed a tendency for increased populations in early-planted potatoes.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Gilles Boiteau
Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
