Results 71 to 80 of about 686 (153)

Management of Invasive Species using Optimal Control Theory [PDF]

open access: yes, 2016
In my dissertation I will discuss the use of optimal control theory to determine management strategies for an invasive species. I focus on a Diaprepes Root Weevil, which is an invasive species having a substantial negative impact on citrus tree growth in
Edholm, Christina J.
core   +1 more source

The importance of root-produced volatiles as foraging cues for entomopathogenic nematodes [PDF]

open access: yes, 2018
Background: Entomopathogenic nematodes (EPNs) are tiny parasitic worms that parasitize insects, in which they reproduce. Their foraging behavior has been subject to numerous studies, most of which have proposed that, at short distances, EPNs use ...
Hiltpold, Ivan   +2 more
core  

The impact of winter flooding with saline water on foliar carbon uptake and the volatile fraction of leaves and fruits of lemon (Citrus limon) trees [PDF]

open access: yes, 2012
We investigated the consequences of recurrent winter flooding with saline water on a lemon (Citrus limon (L.) Burm.f.) orchard, focussing on photosynthesis limitations and emission of secondary metabolites (isoprenoids) from leaves and fruits ...
LA MANTIA, Tommaso   +5 more
core   +1 more source

The Economic Impact of Invasive Species in the Ornamental Commodity in Puerto Rico: Towards Establishing a Multidimensional Framework for Data Collection and Analysis [PDF]

open access: yes
The ornamental commodity in Puerto Rico is valued for its economic contribution in the agricultural sector, its contribution to the esthetics of natural scenarios that impact the tourism sector, and for its environmental role.
Alamo, Carmen I.   +2 more
core   +1 more source

DIAPREPES ABBREVIATA LINNAEUS ON PHOENIX DACTYLIFERA L. [PDF]

open access: yes, 1963
DIAPREPES ABBREVIATA LINNAEUS ON PHOENIX DACTYLIFERA ...
Jackson, George C.
core   +2 more sources

Entomopathogenic Nematodes in Pest Management [PDF]

open access: yes, 2016
The definition “biological control” has been used in different fields of biology, most notably entomology and plant pathology. It has been used to describe the use of live predatory insects, entomopathogenic nematodes (EPNs) or microbial pathogens to ...
Gozel, Cigdem, Gozel, Ugur
core   +1 more source

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions? [PDF]

open access: yes, 2016
Background Aboveground, plants release volatile organic compounds (VOCs) that act as chemical signals between neighbouring plants. It is now well documented that VOCs emitted by the roots in the plant rhizosphere also play important ecological roles ...
Delaplace, Pierre   +3 more
core   +1 more source

Associations of soil iron with citrus tree decline and variability of sand, soil water, pH, magnesium and Diaprepes abbreviatus root weevil: Two-site study

open access: yesEnvironmental and Experimental Botany, 2007
The hypothesis of associations of environmental soil heterogeneity with citrus tree decline and Diaprepes abbreviatus (L.) root weevil variability was tested in two flatwoods fields of ‘Hamlin’ orange trees (Citrus sinensis (L.) Osb.). Studies were conducted on a loamy, poorly drained Mollisol in Osceola County, central Florida in 2002, and on a sandy,
Texas A&M University, Texas Agricultural Experiment Station, Agricultural Research and Extension Center, Bushland, TX 79012, USA ( host institution )   +5 more
openaire   +2 more sources

Water stress, root herbivory and above-ground multitrophic interactions in a crucifer-aphid system

open access: yes, 2011
Plants, insect herbivores and their natural enemies interact in multitrophic food webs that can be influenced by various stress factors. The aim of the present study was to understand the effects of two different below-ground stress factors (drought and ...
Tariq, Muhammad, Tariq, Muhammad
core   +1 more source

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