نتایج جستجو برای: الگوی pest

تعداد نتایج: 61221  

Journal: :Zootaxa 2013
Anna Murray Stephen J Keable

• an 'introduced marine pest' by the National Introduced Marine Pest Information System (NIMPIS 2013) • a 'target introduced pest species' by the Australian Ballast Water Management Advisory Council (ABWMAC) (Currie et al. 1998) • a 'medium priority species' (a species which has a reasonably high impact/or invasion potential) in a ranking of Australian marine pests (Hayes et al. 2005). • a repo...

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: :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...

ژورنال: علوم آب و خاک 2001
جوزیان, عسگر , عبادی, رحیم ,

In order to study the parasitoid flies of Sunn pest in Isfahan, this research was conducted during the years 1997-1998. The results indicated that the dominant species of parasitoid fly is Phasia subcoleoptrata L. This species has two generations per year and over winters as pupae in soil under the shrubs of aestivation and hibernation places of Sunn pest and remains there until the following s...

ژورنال: علوم آب و خاک 2009
باقری, خالو, بی همتا, محمدرضا, زینالی, حسن, ضابط, محمد, طالعی, علیرضا, مردی, محسن,

To study general combining ability(GCA) and gene action for resistance to sunn pest(Eurygaster integriceps) six lines of bread wheat numbered 7214 ,6412,c-75-4,18,14,12 plus azadi variety werw crossed in a half-diallel system. Seven parents and twenty-one hybrids were evaluated in a randomized complete block design with 3 replication at Tehran University Research Station during the years 2005-2...

Ahmad Rezvanfar Laleh Salehi, Seyed Hamid Movahed Mohammadi Seyed Mahmood Hosseini

The aim of the research was analysis of rice producers’ perceptions of participatory communication in the use of integrated pest management (IPM). Research population was consisted of rice producers in the west of Mazandaran province (N=16126), whose 187 ones were selected using Cochran’s formula. Data were gathered by systematic random sampling method. The instrument for data collection was a ...

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...

Journal: :حفاظت گیاهان 0
فاطمه یاراحمدی علی رجب پور علی اصغر سراج

the wood boring beetle, chrysobothris affinis is the most destructive pest of albezia lebeck in landscape of ahwaz. population fluctuations of the pest were investigated on albezia lebbeck in ahwaz landscape during 2010 - 2011. sampling was monthly performed. in each sampling date, ten trees were randomly chosen and damage symptoms of the pest were monitored. when damage symptoms observed in st...

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...

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