نتایج جستجو برای: facilitates the pest

تعداد نتایج: 16060586  

Journal: :Journal of environmental management 2008
F J Areal J Touza A MacLeod K Dehnen-Schmutz C Perrings M G Palmieri N J Spence

This paper analyses the cut flower market as an example of an invasion pathway along which species of non-indigenous plant pests can travel to reach new areas. The paper examines the probability of pest detection by assessing information on pest detection and detection effort associated with the import of cut flowers. We test the link between the probability of plant pest arrivals, as a precurs...

Journal: :Tree physiology 2011
E A Pinkard M Battaglia S Roxburgh A P O'Grady

The current approach to modelling pest impacts on forest net primary production (NPP) is to apply a constant modifier. This does not capture the large spatial and temporal variability in pest abundance and activity that can occur, meaning that overestimates or underestimates of pest impacts on forest NPP are likely. Taking a more mechanistic approach that incorporates an understanding of how ph...

2015
Timothy E Farkas

An important modern goal of plant science research is to develop tools for agriculturalists effective at curbing yield losses to insect herbivores, but resistance evolution continuously threatens the efficacy of pest management strategies. The high-dose/refuge strategy has been employed with some success to curb pest adaptation, and has been shown to be most effective when fitness costs (fitnes...

2013
Jyothi Patil

India’s agricultural sector faces a series of problems when it comes to increasing crop productivity. Despite the efforts of researchers to discover productive agricultural practices, crop yield has not been the most pleasing, and one global reason stated for this poor crop yield is the insect pests. Predicting in advance the occurrence of peak activities of a given pest could enable the develo...

2002

Due to the high demand for pest control in Sri Lankas’ rice paddy cultivation practices, the number of new pesticides has been recently introduced. However, the new pesticides, which are flowing into the agriculture sector of Sri Lanka, appeared to be used by farmers without obtaining proper application guidance from the suppliers or from extension services. As a result, the exposure to harmful...

Journal: :Ecological applications : a publication of the Ecological Society of America 2011
Kevin Gross Jay A Rosenheim

Secondary pest outbreaks occur when the use of a pesticide to reduce densities of an unwanted target pest species triggers subsequent outbreaks of other pest species. Although secondary pest outbreaks are thought to be familiar in agriculture, their rigorous documentation is made difficult by the challenges of performing randomized experiments at suitable scales. Here, we quantify the frequency...

Journal: :Risk analysis : an official publication of the Society for Risk Analysis 2003
Trond Rafoss

Pest risk analysis represents an emerging field of risk analysis that evaluates the potential risks of the introduction and establishment of plant pests into a new geographic location and then assesses the management options to reduce those potential risks. Development of new and adapted methodology is required to answer questions concerning pest risk analysis of exotic plant pests. This resear...

Journal: :journal of crop protection 2015
majid mirab-balou

taeniothrips inconsequens (uzel) of the subfamily thripinae (thysanoptera: thripidae) collected on flowers from doha is reported in this paper, which represents the first record of both the genus and the species from qatar. morphological characters and geographical distribution of the newly recorded thrips are given.

Journal: :Emu - Austral Ornithology 1924

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