نتایج جستجو برای: insecticides

تعداد نتایج: 14036  

2015
Ernesto Robayo Camacho Juang-Horng Chong

We summarize the economic importance, biology, and management of soft scales, focusing on pests of agricultural, horticultural, and silvicultural crops in outdoor production systems and urban landscapes. We also provide summaries on voltinism, crawler emergence timing, and predictive models for crawler emergence to assist in developing soft scale management programs. Phloem-feeding soft scale p...

Journal: :Journal of economic entomology 2008
Jeffrey D Bradshaw Marlin E Rice John H Hill

Cerotoma trifurcata Förster (Coleoptera: Chrysomelidae) and Bean pod mottle virus (Comoviridae) (BPMV) both can reduce yield and seed quality of soybean, Glycine max (L.) Merr. Field experiments were conducted to evaluate the effects of systemic, seed-applied, and foliar-applied insecticides for the management of this pest complex at three locations in central, northeastern, and northwestern Io...

2011
Margaret C. Hardy

Best agricultural practices advocate the use of selective insecticides, but the practicalities of applying novel technologies can be unclear. The aim of this review is to synthesize the existing literature on novel and selective insecticides that are appropriate for use in integrated pest management (IPM) programmes, in tandem with biological control agents or as a more sustainable form of conv...

Journal: :Revista de salud publica 2007
Mirley Castro Nilson Quintana Martha L Quiñones P

OBJECTIVE Evaluating the efficacy of two pyrethroid insecticides on Aedes aegypti, thereby providing useful information for decision-making in controlling dengue. METHODS The effect on A. aegypti of ultra low volume (ULV) highcis-Permethrin (Depe) and ss-cypermethrin pyrethroids in a smoke-generating formulation (Bolate) was evaluated in 16 blocks in the town of Puerto Leguizamo, Putumayo, be...

2012
Ernesto A. B. Lima Wesley A. C. Godoy Cláudia P. Ferreira

During long time pest control was associated only to insecticides. The formulations were produced as an attempt of improving the insect control. However, some undesirable effects emerged in this time, mainly the toxin action and resistance. Insecticides are substances produced from chemical or biological products to control insect pests. The most common mode of action for insecticides is to kil...

Journal: :Environment international 2016
Francisco Sánchez-Bayo Dave Goulson Francesco Pennacchio Francesco Nazzi Koichi Goka Nicolas Desneux

The negative impacts of pesticides, in particular insecticides, on bees and other pollinators have never been disputed. Insecticides can directly kill these vital insects, whereas herbicides reduce the diversity of their food resources, thus indirectly affecting their survival and reproduction. At sub-lethal level (<LD50), neurotoxic insecticide molecules are known to influence the cognitive ab...

2010
Charles M. Thompson John M. Prins Kathleen M. George

OBJECTIVE Organophosphate (OP) insecticides continue to be used to control insect pests. Acute and chronic exposures to OP insecticides have been documented to cause adverse health effects, but few OP-adducted proteins have been correlated with these illnesses at the molecular level. Our aim was to review the literature covering the current state of the art in mass spectrometry (MS) used to ide...

2016
Atsushi Kasai Takehiko I. Hayashi Hitoshi Ohnishi Kazutaka Suzuki Daisuke Hayasaka Koichi Goka

Several reports suggested that rice seedling nursery-box application of some systemic insecticides (neonicotinoids and fipronil) is the cause of the decline in dragonfly species noted since the 1990s in Japan. We conducted paddy mesocosm experiments to investigate the effect of the systemic insecticides clothianidin, fipronil and chlorantraniliprole on rice paddy field biological communities. C...

2009
Jacob C Koella Penelope A Lynch Matthew B Thomas Andrew F Read

As many strategies to control malaria use insecticides against adult mosquitoes, control is undermined by the continual evolution of resistant mosquitoes. Here we suggest that using alternative insecticides, or conventional insecticides in alternative ways might enable effective control, but delay considerably or prevent the evolution of resistance. Our reasoning relies on an epidemiological an...

Journal: :Journal of economic entomology 2005
Grzegorz Buczkowski Michael E Scharf Catina R Ratliff Gary W Bennett

Five selected insecticides were applied to four substrates and evaluated in laboratory studies for repellency and toxicity against the Pharaoh ant, Monomorium pharaonis (L.). We tested both repellent and nonrepellent formulations on outdoor (concrete and mulch) and indoor (ceramic and vinyl) substrates. Repellency was evaluated using a behavioral bioassay in which colonies were given a choice t...

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