نتایج جستجو برای: pesticide crops

تعداد نتایج: 52770  

Journal: :The Science of the total environment 2013
Sanzidur Rahman

The paper analyses trends in consumption, productivity and the determinants of pesticide use in Bangladesh over a 33 year period (1977-2009), including a discussion on the scope to expand Integrated Pest Management (IPM) practices. Pesticide use grew at an alarming rate of 10.0% per year (p<0.01) although the corresponding response in yield growth of major crops has been minimal (<1.0% per year...

2006
Gloria D. Coronado Eric M. Vigoren Beti Thompson William C. Griffith Elaine M. Faustman

Organophosphate (OP) pesticides are commonly used in the United States, and farmworkers are at risk for chronic exposure. Using a sample of 218 farmworkers in 24 communities and labor camps in eastern Washington State, we examined the association between agricultural crop and OP pesticide metabolite concentrations in urine samples of adult farmworkers and their children and OP pesticide residue...

Journal: :Roczniki Panstwowego Zakladu Higieny 2015
Ewa Szpyrka Anna Kurdziel Julian Rupar Magdalena Słowik-Borowiec

BACKGROUND Fruit and vegetables have health and nutritional value, but can also be a source of toxic contaminants such as pesticide residues. OBJECTIVE The aim of this study was to evaluate presence of pesticide residues in fruit and vegetable crops from the central and eastern region of Poland in order to check the compliance of these products with the maximum residue levels' (MRLs) requirem...

Journal: :global journal of environmental science and management 2015
a. g. s. cuthbertson

very little information exists in regards to the control options available for potato flea beetles, epitrix spp. this short review covers both chemical and ecological options currently available for control of epitrix spp. synthetic pyrethroids are the weapon of choice for the beetles. however, the impetus in integrated pest management is to do timely (early-season) applications with something ...

2012
Charles M Benbrook

Background: Genetically engineered, herbicide-resistant and insect-resistant crops have been remarkable commercial successes in the United States. Few independent studies have calculated their impacts on pesticide use per hectare or overall pesticide use, or taken into account the impact of rapidly spreading glyphosate-resistant weeds. A model was developed to quantify by crop and year the impa...

Journal: :Science 2012
James E Cresswell Helen M Thompson

Henry et al. (Reports, 20 April, p. 348) used a model to predict that colony collapse in honey bees could be precipitated by pesticide-induced intoxication that disrupts navigation. Here, we show that collapse disappears when the model is recalculated with parameter values appropriate to the season when most pesticide-treated flowering crops bloom.

2015
Vijaya Bhaskara Reddy M. Vijaya Bhaskara Reddy Y. Ravindra Reddy

The presence of pesticide residues in feed and its animal products is in the focus at the present scenario in the view of WTO. The residues not only affect the public health but also cause economic losses to the livestock industry. Not only these affect the health of livestock and human beings but also affect the quality of animal products. Pesticide residues accumulate in the animals either by...

2016
Charles F. dos Santos André L. Acosta Andressa L. Dorneles Patrick D. S. dos Santos Betina Blochtein

Bees are important for the world biodiversity and economy because they provide key pollination services in forests and crops. However, pesticide use in crops has adversely affected (decreased) queen production because of increased mortality among larvae. Here, we demonstrated that in vitro-reared queens of a neotropical social bee species (Plebeia droryana) also showed high larval mortality aft...

2017
Peter Stahlschmidt Melanie Hahn Carsten A. Brühl

Although agriculture dominates much of Europe’s landscape, there is virtually no information on foraging activity of bats in different crops. Additionally little is known about pesticide exposure of bats and related effects and there are currently no specific regulatory requirements to include bats in European Union pesticide risk assessments for the registration of these chemicals although oth...

2014
Wilhelm Klümper Matin Qaim

BACKGROUND Despite the rapid adoption of genetically modified (GM) crops by farmers in many countries, controversies about this technology continue. Uncertainty about GM crop impacts is one reason for widespread public suspicion. OBJECTIVE We carry out a meta-analysis of the agronomic and economic impacts of GM crops to consolidate the evidence. DATA SOURCES Original studies for inclusion w...

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