Results 111 to 120 of about 279 (136)
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Scientia Horticulturae, 2017
Abstract The effect of selenium on physiological and biochemical characteristics of broccoli (Brassica oleracea var italica) transplants under controlled conditions and on the plants and some of the brassica pests development under field conditions were studied.
Špela Mechora +4 more
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Abstract The effect of selenium on physiological and biochemical characteristics of broccoli (Brassica oleracea var italica) transplants under controlled conditions and on the plants and some of the brassica pests development under field conditions were studied.
Špela Mechora +4 more
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ASSESSING THE SUSCEPTIBILITY OF CRUCIFER SEEDLINGS TO FLEA BEETLE (Phyllotreta spp.) DAMAGE
Canadian Journal of Plant Science, 1988A 5-yr field study to develop a method for assessing the susceptibility of crucifer seedlings to damage by the flea beetles Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (F.) is described. The recommended method consisted of five replicate 5-m rows per cultivar in a randomized complete-block design.
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Agronomy Journal, 2005
Fall seeding of canola can increase equipment and manpower efficiencies for producers, hasten crop maturity, and improve seed quality, but no previous studies have examined effects of this practice on infestations of flea beetles (Phyllotreta spp.) (Coleoptera: Chrysomelidae), the major pests of crop seedlings in North America.
Lloyd M. Dosdall, F. Craig Stevenson
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Fall seeding of canola can increase equipment and manpower efficiencies for producers, hasten crop maturity, and improve seed quality, but no previous studies have examined effects of this practice on infestations of flea beetles (Phyllotreta spp.) (Coleoptera: Chrysomelidae), the major pests of crop seedlings in North America.
Lloyd M. Dosdall, F. Craig Stevenson
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Canadian Journal of Plant Science, 2012
Soroka, J. J. and L. F. Grenkow. 2012. When is fall feeding by flea beetles ( Phyllotreta spp., Coleoptera: Chrysomelidae) on canola ( Brassica napus L.) a problem? Can. J. Plant Sci. 92: 97–107. Two cultivars of Brassica napus canola were seeded in mid-May and early June in three field experiments in each of 3 yr near Saskatoon, Saskatchewan, to ...
Juliana J. Soroka, Larry F. Grenkow
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Soroka, J. J. and L. F. Grenkow. 2012. When is fall feeding by flea beetles ( Phyllotreta spp., Coleoptera: Chrysomelidae) on canola ( Brassica napus L.) a problem? Can. J. Plant Sci. 92: 97–107. Two cultivars of Brassica napus canola were seeded in mid-May and early June in three field experiments in each of 3 yr near Saskatoon, Saskatchewan, to ...
Juliana J. Soroka, Larry F. Grenkow
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Canadian Journal of Plant Science, 2008
A 3-yr study was conducted on four Brassica napus L. cultivars to determine the effects of seed size and seed weight on the performance and tolerance of canola seedlings to feeding damage by flea beetles, Phyllotreta spp. (Coleoptera: Chrysom elidae).
R. H. Elliott, C. Franke, G. F. W. Rakow
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A 3-yr study was conducted on four Brassica napus L. cultivars to determine the effects of seed size and seed weight on the performance and tolerance of canola seedlings to feeding damage by flea beetles, Phyllotreta spp. (Coleoptera: Chrysom elidae).
R. H. Elliott, C. Franke, G. F. W. Rakow
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The Canadian Entomologist, 1988
The oilseed rape crop, Brassica napus L. and B. campestris L., has undergone a significant chemical transformation during the last 15 years. Plant breeders produced cultivars with only trace levels of erucic acid in the oil compared with 40-50% in early cultivars, and with 18 μmol/g of glucosinolates or less in the oil-free meal compared with 62-1 15 ...
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The oilseed rape crop, Brassica napus L. and B. campestris L., has undergone a significant chemical transformation during the last 15 years. Plant breeders produced cultivars with only trace levels of erucic acid in the oil compared with 40-50% in early cultivars, and with 18 μmol/g of glucosinolates or less in the oil-free meal compared with 62-1 15 ...
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Canadian Journal of Plant Science, 2007
A 3-yr study was conducted on three synthetic Brassica rapa L. cultivars to determine the effects of seed size and seed weight on seedling establishment, seedling growth and susceptibility to feeding damage by flea beetles, Phyllotreta spp. (Coleoptera: Chrysomelidae).
R. H. Elliott, L. W. Mann, O. O. Olfert
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A 3-yr study was conducted on three synthetic Brassica rapa L. cultivars to determine the effects of seed size and seed weight on seedling establishment, seedling growth and susceptibility to feeding damage by flea beetles, Phyllotreta spp. (Coleoptera: Chrysomelidae).
R. H. Elliott, L. W. Mann, O. O. Olfert
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Agriculture, Ecosystems & Environment, 2019
Abstract Alternative pest control options are needed for flea beetles (Phyllotreta spp.) in spring oilseed rape (Brassica napus L.) in the European Union following the ban on neonicotinoid seed treatments. I investigated the effect of no-till establishment using either a tine or a disc seed drill on crop damage caused by flea beetles in spring oilseed
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Abstract Alternative pest control options are needed for flea beetles (Phyllotreta spp.) in spring oilseed rape (Brassica napus L.) in the European Union following the ban on neonicotinoid seed treatments. I investigated the effect of no-till establishment using either a tine or a disc seed drill on crop damage caused by flea beetles in spring oilseed
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The Canadian Entomologist, 1984
AbstractThe effects of damage by natural infestations of the flea beetles Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (F.) on field plots of canola, rape (Brassica napus L.), and yellow mustard (Sinapis alba L.) are described. Damage occurred primarily during the first few weeks after emergence: seedling mortality was high during the first
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AbstractThe effects of damage by natural infestations of the flea beetles Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (F.) on field plots of canola, rape (Brassica napus L.), and yellow mustard (Sinapis alba L.) are described. Damage occurred primarily during the first few weeks after emergence: seedling mortality was high during the first
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2011
Flea beetles [Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (Fabricius)] (Coleoptera: Chrysomelidae) pose significant threats to early canola seedling establishment. The resistance potential of transgenic Brassica napus expressing cDNA encoding pea PR10.1 and 10.4 (ABR17) in Westar and DH19 backgrounds, respectively, was investigated.
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Flea beetles [Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (Fabricius)] (Coleoptera: Chrysomelidae) pose significant threats to early canola seedling establishment. The resistance potential of transgenic Brassica napus expressing cDNA encoding pea PR10.1 and 10.4 (ABR17) in Westar and DH19 backgrounds, respectively, was investigated.
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