نتایج جستجو برای: urban pests

تعداد نتایج: 182112  

2015
Johnny L. Miranda

In rice production, pest invasion is considered as the most challenging task for crop technicians and farmers. Pest invasion can cause serious losses and affect the income of farmers. It is then important to assess their density for pests forecasting decision making. Existing identification techniques of these species comprise of using different traps to detect their presence. However, these tr...

2012
Yinghua Huang Hari C. Sharma Mukesh K. Dhillon

A.H. Paterson (ed.), Genomics of the Saccharinae, Plant Genetics and Genomics: Crops and Models 11, DOI 10.1007/978-1-4419-5947-8_16, © Springer Science+Business Media New York 2013 Abstract Sustainable production of sorghum, Sorghum bicolor (L.) Moench, depends on effective control of insect pests as they continue to compete with humans for the sorghum crop. Insect pests are a major constraint...

2017
Hafsa Memona Farkhanda Manzoor Saffora Riaz

BACKGROUND Cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various pathogens of diseases. The present study was conducted from April 2013 to March 2014 in various human dwelling localities of urban area of district Lahore, Pakistan. METHODS Cockroa...

2008
Imre S. Otvos Holly Armstrong Nicholas Conder

This minireview discusses the risks to humans and large mammals associated with the use of Bacillus thuringiensis var. kurstaki (Btk) in forest, agricultural and urban environments. The first subspecies used for insect control was Bacillus thuringiensis subsp. thuringiensis (Btt), known at the time as Bt Berliner. Much of the early work done with Bt does not identify the subspecies. Btk is regi...

2017
Walter E. Howard WALTER E. HOWARD

2002
Robert F. Norris

Introduction The term pest includes pathogens, weeds, nematodes, mollusks, arthropods, and vertebrates. One category of pests does not occur in the absence of pests in other categories, yet most IPM systems are designed around a single category of pest. For full implementation of IPM it is essential that all categories of pests be managed in an integrated manner. Allowances for the interactions...

Journal: :Journal of agricultural and food chemistry 2011
Steven E Naranjo

Transgenic cotton that produced one or more insecticidal proteins of Bacillus thuringiensis (Bt) was planted on over 15 million hectares in 11 countries in 2009 and has contributed to a reduction of over 140 million kilograms of insecticide active ingredient between 1996 and 2008. As a highly selective form of host plant resistance, Bt cotton effectively controls a number of key lepidopteran pe...

2003
Ernst A. Wimmer

Many insects compete with us humans for agricultural resources, feed on us, or act as disease vectors. Current control efforts rely mostly on the use of insecticides. The use of chemicals to either repel or kill insect pests is the oldest and most commonly used method of pest control. However, with the massive use of insecticides four major problems have arisen. First, many pests have developed...

2009
Zhongyi Xiang

In this paper, we consider a SI system with spraying microbial pesticide and releasing the infected pests, the infected pests have the function similar to the microbial pesticide and can infect the healthy pests, further weaken or disable their prey function till death. By applying the Floquet theorem of linear periodic impulsive equations and the comparison theorem, we show that there exists a...

2008
Juhua Luo Wenjiang Huang Jihua Wang Chaoling Wei

The aim of this study was to establish the warning and prediction system for crop diseases and pests based on SuperMap IS. NET geographic information system (GIS), which was developed by Supermap company. In this system, the author used GIS and remote sensing (RS) technology. The system could transform data information into a geographical information map to show the occurrence degree and distri...

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