Deborah HendersonKwantlen Polytechnic University · Institute for Sustainable Horticulture
Deborah Henderson
PhD
About
32
Publications
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Introduction
Deborah Henderson PhD, is the Director of the Institute for Sustainable Horticulture, Kwantlen Polytechnic University, BC, Canada, and holds a BC Regional Innovation Chair in Sustainable Horticulture. Deborah does research in Biocontrol, Integrated Pest Management, Agritech, Bioproducts and the impact of their use, development of Microbial Biopesticides, and collaborates in greenhouse clean energy research. Several recent and current projects involve research partners in Cuba.
Publications
Publications (32)
The degradation of agricultural residues and their bioconversion to methane is still hampered by the search for pre-treatment strategies due to the lignocellulosic content that limits the process efficiency. Adding an enriched microbial consortium could be an alternative for the biological treatment of lignocellulosic biomass. Therefore, during the...
The degradation of agricultural residues by anaerobic digestion and their bioconversion to methane is still hampered by the search for pretreatment strategies due to the lignocellulosic content that limits the efficiency of the process. Adding an enriched microbial consortium could be an alternative for the biological treatment of lignocellulosic b...
Soil microorganisms found in agricultural residues and the so-called efficient microorganisms (EM) are attractive for their potential applications and benefits in the bioremediation of complex ecosystems. However, the knowledge about Who is doing what?, as well as the trophic interaction in those communities that explain its benefits are limited; a...
Longos períodos na monocultura e mudanças dos sistemas de uso da terra, como a introdução de culturas em áreas de florestas ou pastagens, podem dar origem a alterações nas propriedades físico químicas dos solos tanto em regiões temperadas quanto em regiões tropicais. Os objetivos deste estudo foram (i) analisar o comportamento dos ácidos húmicos, e...
This work evaluated the effect of the application of biogas plant effluent and efficient microorganisms (ME), as biofertilizers in onion culture (Allium cepa L, cv. ‘Caribe-71’). The experiment was carried out at a field scale (in stalks of 1,5 x 8,0 m) under a Latin Square design, where four treatments were applied: I. mixture of effluent and ME 5...
RESUMEN Cuba tiene un reconocido prestigio internacional por desarrollar un amplio programa de control biológico de plagas, sin embargo, poco se ha hecho en relación con el desarrollo de los insecticidas virales basados en virus de la familia Baculoviridae, los que cada día ganan más espacio en el mundo como alternativa viable al empleo de insectic...
In this paper the agronomic effect of effluent from the anaerobic digestion of pig manure in cultivating tomato(Solanum lycopersicum) and its effect as a biological control of plant pathogen Rhizoctonia solani are determined. For this, a study was conducted compared with bioproducts and recognized antagonists (vermicompost leachate, efficient micro...
Greenhouse structures are widely used to enable sheltered plant growth. However, traditional transparent greenhouse structures are generally only used in moderate climates because the cost of the energy required for heating in cold climates is prohibitively high. This paper describes a new approach to the design trade-off between light transmission...
La investigación consistió en analizar las transformaciones que experimentan los ácidos húmicos del suelo (AHS), teniendo en cuenta el tipo de manejo y las malas prácticas agrícolas, a lo que son sometidos los suelos bajo cultivo intensivo. Para ello se tomaron dos suelos clasificado por la Soil Taxonomy como (Podzol), el primero de referencia bajo...
A pest monitoring dataset collected for organic Brassica fields in south coastal British Columbia, Canada, was examined to test three possible scenarios explaining poor aphid control by natural enemy insects: the lack of diversity within the enemy guild, slow colonization of fields by enemies, and poor natural enemy reproduction. Both parasitoids a...
Using 4 years of potato monitoring data containing insect counts, population development of the green peach aphid (Myzus persicae (Sulzer)) (Hemiptera: Aphididae), ladybird beetles (Harmonia axyridis (Pallas) and Coccinella septempunctata L.) (Coleoptera: Coccinellidae), and hymenopterous aphid parasitoids is described and used to consider revision...
Parasitism activity of Trichogramma sibericum Sorkina tested in laboratory bioassays at different ambient temperatures was not dependent on the rearing temperature of the wasps. Trichogramma sibericum parasitized more Ephestia kuehniella Zeller eggs as ambient temperature increased from 16 to 26°C. Rearing temperature had a significant effect on po...
In 1997, larvae of the cutworm moth,
Ochropleura implecta
Lafontaine, caused economic damage to cranberries (
Vaccinium macrocarpon
Aiton; Ericaceae) on several neighbouring farms in Richmond (49° 10′N, 123°07′W), British Columbia, Canada. This is the first report of
O. implecta
on cranberries. Published host records for
O. implecta
include willow...
Inundative releases of Trichogramma minutum Riley were made in a commercialblueberry field in British Columbia, Canada, todetermine the extent of dispersal of adult wasps, andto determine whether complete parasitism of eggswithin egg masses of the target host [oblique-bandedleafroller (OBLR), Choristoneura rosaceana(Harris)] occurred. Three weekly...
Trichogramma sibericum Sorkina was reared in the laboratory at three temperatures: 16, 21, and 26°C. Individuals from each of these treatments were then tested for propensity to initiate flight at one of four ambient temperatures: 16, 19, 21, or 26°C. Both rearing and ambient temperatures had significant effects on flight initiation. Insects reared...
Searching times and residence times of Trichogramma sibericum Sorokina were measured in the laboratory on individual cranberry leaves that had been treated with the sex pheromone of blackheaded fireworm [Rhopobota naevana (Hbner)] and on leaves that were left untreated. Mean searching time was higher on leaves treated by passive diffusion with eith...
The field attractivity of (E,Z)-2,13-octadecadienyl acetate (E,Z-2,13-18:OAc) (30 μg loaded on red rubber tubing) alone or in combination with (E,Z)-3,13-octadecadienyl acetate (E,Z-3,13-18:OAc) (0.9 μg added) towards the male currant borer, Synanthedon tipuliformis Cl., (Lepidoptora: Sesiidae), was compared in British Columbia (B.C.) and in Quebec...
Field isolates of threeTrichogrammaspecies were collected and tested in the laboratory for host acceptance and suitability of oblique-banded leafroller (Choristoneura rosaceana(Harris) (OBLR) andEphestia kuehniellaZeller eggs. An isolate ofTrichogramma minutumRiley that was collected from OBLR eggs found on birch trees in Ontario had a much higher...
Four species or strains of Trichogramma (Hymenoptera: Trichogrammatidae) were tested in the laboratory for their ability to accept and parasitize eggs of the blackheaded fireworm, Rhopobota naevana (Hubner) (Lepidoptera: Tortricidae). An indigenous species of T. sp. nr. sibericum Sorokina emerging from fireworm eggs collected from cranberry fields...
Our objectives were to predict pheromone-trap catches and oviposition of blackheaded fireworm, Rhopobota naevana (Hübner), on commercial cranberry farms in Wisconsin, Washington, Oregon, and British Columbia and to model oviposition in Wisconsin. Real time, expressed as days after male moths were caught in traps, predicted the day of 50% catch bett...
Two indigenous species ofTrichogramma were reared from natural populations of the blackheaded fireworm,Rhopobota naevana (Hübner) infesting cranberries in British Columbia, Canada. One was identified asTrichogramma sp. nr.sibericum Sorokina and the other wasTrichogramma minutum Riley. Percentage of parasitized hosts increased during the season in a...
Antennal sensilla of Metasyrphus venablesi (Cn.) and Eupeodes volucris O.S. (Diptera: Syrphidae) were studied by scanning and transmission electron microscopy. Males and females both had four types of sensilla. Three of these, two multiporous pitted (mpp) sensilla (one round-tipped and one pointed) and a multiporous grooved peg sensillum, were also...
A typical uniporous contact chemosensillum was identified on the ovipositor of two aphidophagous syrphids, Metasyrphus venablesi (Cn.) and Eupeodes volucris O.S. (Diptera: Syrphidae). Fine structural study of the sensillum of M. venablesi revealed one mechanosensitive and five chemosensitive neurons. Single sensillum recordings from both species sh...
