نتایج جستجو برای: pest

تعداد نتایج: 16983  

2008

The crops are attacked by several species of bugs. Sunn pest, is the most important pest constitutes a major threat to wheat production and, to a lesser extent, barley production. Sunn pests are a complex of true bugs which belong to the genera Eurygaster (Scutelleridae), Aelia, Carpocoris and Dolycoris (Pentatomidae). Eurygaster integriceps is probably the most important species in Afghanistan...

2013
Heather Kirk Silvia Dorn Dominique Mazzi

Invertebrate pest invasions and outbreaks are associated with high social, economic, and ecological costs, and their significance will intensify with an increasing pressure on agricultural productivity as a result of human population growth and climate change. New molecular genetic and genomic techniques are available and accessible, but have been grossly underutilized in studies of invertebrat...

2003
Rajat Gupta B. V. L. Narayana P. Krishna Reddy G. V. Ranga Rao C. L. L. Gowda Y. V. R. Reddy Garimella Rama Murthy

Insect pests are a major cause of crop loss globally. Pest management will be effective and efficient if we can predict the occurrence of peak activities of a given pest. Research efforts are going on to understand the pest dynamics by applying analytical and other techniques on pest surveillance data sets. In this study we make an effort to understand pest population dynamics using Neural Netw...

Journal: :Journal of cell science 2002
Sarita K Sastry Patrick D Lyons Michael D Schaller Keith Burridge

The cytoplasmic protein tyrosine phosphatase, PTP-PEST, associates with the focal adhesion proteins p130cas and paxillin and has recently been implicated in cell migration. In this study, we investigated the mechanism by which PTP-PEST regulates this phenomenon. We find that PTP-PEST is activated in an adhesion-dependent manner and localizes to the tips of membrane protrusions in spreading fibr...

2009
Waldemar Klassen

Area-wide pest management is one of several major plans or strategies for coping with pest problems. Management of localized populations is the conventional or most widely used strategy, wherein individual producers, other operators and households practice independent pest control. However, since individual producers or households are not capable of adequately meeting the challenge of certain v...

Journal: :journal of crop protection 2014
mohammad javad ardeh ali mohammadipour raoof kolyaee hassan rahimi hadi zohdi

the leopard moth, zeuzera pyrina (l.) (lepidoptera: cossidae) is a serious pest of walnut and apple trees in iran. one of the control methods for this pest is the mass trapping of males using pheromone traps. to determine the best size and color of traps, four different colors (green, yellow, white, gray) and two different sizes (delta shape with standard adhesive surface, 19 × 22 cm and trapez...

2008
Paul A. Weston

Pest index, a new approach to categorizing the threat posed by an organism to woody plants, is proposed to assist plant managers in establishing treatment thresholds for pests of woody plants. The need for such a tool is based on the incredible diversity of pests of woody plants and the lack of experimental data establishing such thresholds. The pest index is computed using information about th...

Background and Objectives: Environment and human health conservation is very important in the use of chemical pesticides for pest control. The aim of this study was investigation of farmers' attitude toward pest control methods in Rafsanjan county. Materials and Methods: This cross-sectional research was performed by field survey. The questionnaire consisted of questions on quality and quant...

2018
Fengqi Li Ningning Fu Du Li Hetang Chang Cheng Qu Ran Wang Yihua Xu Chen Luo

The spread of the exotic insect pest sycamore lace bug Corythucha ciliata (Say) is increasing worldwide. The identification of behaviorally active compounds is crucial for reducing the current distribution of this pest. In this study, we identified and documented the expression profiles of genes encoding chemosensory proteins (CSPs) in the sycamore lace bug to identify CSPs that bind to the ala...

Journal: :دانش گیاه پزشکی ایران 0
رقیه کریم زاده استاد یار دانشگاه تبریز میرجلیل حجازی استاد دانشگاه تبریز حسین هلالی استادیار دانشگاه تبریز شهزاد ایرانی پور دانشیار دانشگاه تبریز سید ابوالقاسم محمدی استاد دانشگاه تبریز

sunn pest is considered as the most important insect pest of wheat and barley in iran. different studies have shown that various biotic and abiotic factors affect sunn pest populations. these factors can influence the population density of the pest which in turn can play a role in the control of the pest. in this study the relationship between sunn pest population fluctuations and climatic cond...

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