Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) and Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) are among the most serious pests of sweet peppers in greenhouses. Chemical control is difficult because their high reproductive rates insecticide resistance, seasonal inoculative releases Orius laevigatus (Fieber) Amblyseius swirskii (Athias-Henriot) commonly used to reduce populations. As chemical treatments often needed crop against other pests, side effects...

Journal Article Lethal and Sublethal Toxicity of Fipronil Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae) Get access Ángeles Adán, Adán 1 Unidad de Protección Cultivos, E.T.S.I. Agrónomos, Universidad Politécnica Madrid, 28040 Spain 1Corresponding author, e-mail: angeles.adan@upm.es. Search for other works by this author on: Oxford Academic PubMed Google Scholar Elisa Viñuela, Viñuela Paloma Bengochea, Bengochea Flor Budia, Budia Pedro Del Estal, Estal Aguado, Aguado Pilar...

Summary Drip‐fertigated systems have variable distributions of water and nutrients in the soil, which influence soil microbial activity. Because there is a lack data on greenhouse gas ( GHG ) fluxes for these systems, field experiment comparing drip irrigation (fertigated non‐fertigated) was carried out melon crop. For fertigated treatment, nitrogen N as NH 4 NO 3 dissolved split into six applications F ertigation treatment). In non‐fertigated ANS treatment), granular incorporated...

Lindernia dubia (L.) Pennell is a species with invasive behavior outside of its native range distribution (North America), linked mainly to aquatic habitats. This annual has been acknowledged as weed in rice paddies Europe and Asia. Due the impacts this plant, some authors have even listed global invader. The present work focused on spontaneous plant occurring cattail seedlings grown central Spain for establishment constructed wetlands. Weed inventory revealed presence L. dominant crop...

Carbon distribution in the stem of 2-year-old cork oak plants was studied by 14CO2 pulse labeling late spring order to trace allocation photoassimilates tissue and biochemical components oak. The fate 14C photoassimilated carbon followed during two periods: first 72 h (short-term study) 52 weeks (long-term after photosynthetic assimilation. results showed that tissues dependent on time passed since photoassimilation season year. In 3 all found polar extractives. After h, it started be...

Landscape evolution is driven by abiotic, biotic, and anthropic factors. The interactions among these factors their influence at different scales create a complex dynamic. Landscapes have been shown to exhibit numerous scaling laws, from Horton's laws more sophisticated of heights in topography river network topology. This multiscaling analysis has the potential characterise landscape terms statistical signature measure selected. study zone matrix obtained digital elevation model (DEM) (map...

Abstract A population-based modelling approach was used to predict the occurrence of germination in Solanum sarrachoides (SOLSA) for different treatments. Seeds collected Toledo (Spain) were exposed constant temperatures, temperatures alternating between 10 and 30°C gibberellins (GAs; 0, 50, 100, 150 1000 ppm) during a 24-h imbibition period. The following parameters measured: base temperature ( Tb ), mean thermal time (θ T (50)) standard deviation (σ θT ). SOLSA seeds only germinated at...

Abstract Carbon (C) distribution in a sweet sorghum‐soil system was studied by 14 CO 2 pulse‐labeling of shoots at three dates during the growth cycle order to assess contribution crop carbon storage soil. Soil and plant samplings were performed 24 h after C‐labeling final harvest (October) determine assimilate allocation estimate amount plant‐derived soil carbon. Approximately 4‐16% C present located fine fraction (< mm) over period. At harvest, proportion accounted for 7‐9% system. The...

Abstract. Agro-areas of Arroyos Menores (La Colacha) west and south Río Cuarto (Prov. Córdoba, Argentina) basins are very fertile but have high soil loses. Extreme rain events, inundations other severe erosions forming gullies demand urgently actions in this area to avoid degradation erosion supporting good levels agro production. The authors first improved hydrologic data on La Colacha, evaluated the systems uses that could be recommended considering relevant aspects study applied decision...

This study addresses the challenge of producing feedstocks for bioenergy and bio-based products in a non-land-dependent system based on recently-developed concept Green Floating Filter (GFF). In this system, cattails are grown floating supports placed eutrophic water bodies order to form biomass mat that contributes treatment; produced is fully harvested at end growth cycle. work datasets key parameters concerning GFF performance were built proof-of-concept GFFs. Results highlighted...

The growth pattern of cork oak (Quercus suber L.), an important component South Mediterranean woodlands, is seasonal. Seasonality has been found for shoot, radial and ring as well carbon (C) photoassimilation, nutrients remobilization water relations, among other physiological aspects. However, little known about the seasonality C allocation to chemical compounds, including suberin, a major cork. In order achieve this goal, isotopic tracer experiment was conducted using 18-month-old oaks so...

Abstract Background Cattail ( Typha domingensis Pers.) is a perennial emergent plant which used in Green Floating Filters (GFFs), one of the most innovative systems wastewater treatment to bioremediate eutrophic waters and produce biomass as biofuel feedstocks. The establishment cattails GFFs depends on seed germination responses under conditions new habitat. This study analysed four different populations through thermal time model know their basic parameters population would be more adapted...

Lindernia dubia (L.) Pennell is a species with invasive behavior outside of its native range distribution (America), linked mainly to aquatic habitats. This annual has been acknowledged as weed in rice paddies Europe and Asia. Due the impacts this plant, some authors have even listed global invader. The present work focused on spontaneous plant occurring seedlings Typha domingensis Pers. grown central Spain for establishment constructed wetlands. Weed inventory revealed presence L. dominant...