نتایج جستجو برای: pest management

تعداد نتایج: 863197  

2010
XIA WANG XINYU SONG

According to biological strategy for pest control, we investigate the dynamic behavior of a pest management SEI model with nonlinear incidence concerning impulsive strategyperiodic releasing infected pests at fixed times. We prove that all solutions of the system are uniformly ultimately bounded and there exists a globally asymptotically attractive pest-eradication periodic solution when the im...

Journal: :J. Systems Science & Complexity 2008
Xinzhu Meng Lansun Chen

This paper formulates a robust stage-structured SI eco-epidemiological model with periodic constant pulse releasing of infectious pests with pathogens. The authors show that the conditions for global attractivity of the ‘pest-eradication’ periodic solution and permanence of the system depend on time delay, hence, the authors call it “profitless”. Further, the authors present a pest management s...

2010
Yumin Ding Shujing Gao Yujiang Liu Yun Lan

In this paper, an SI epidemic model with stage structure is investigated. In this model, impulsive biological control which release infected pest to the field at a fixed time periodically is considered, and obtained the sufficient conditions for the global attractivity of pest-extinction periodic solution and permanence of the system. We also prove that all solutions of the model are uniformly ...

2013
Deepa Bhagat Suman K. Samanta Santanu Bhattacharya

Environment-friendly management of fruit flies involving pheromones is useful in reducing the undesirable pest populations responsible for decreasing the yield and the crop quality. A nanogel has been prepared from a pheromone, methyl eugenol (ME) using a low-molecular mass gelator. This was very stable at open ambient conditions and slowed down the evaporation of pheromone significantly. This ...

Journal: :Annual review of entomology 2007
Geoff Zehnder Geoff M Gurr Stefan Kühne Mark R Wade Steve D Wratten Eric Wyss

Burgeoning consumer interest in organically produced foods has made organic farming one of the fastest growing segments of agriculture. This growth has not been supported adequately by rigorous research to address challenges such as arthropod pest management. The research that has been conducted, however, is complemented by research in aspects of conventional agriculture that may have applicabi...

2012
Yuki Maruyama

Mini review Application of RNA interference (RNAi) by feeding to pest management M1 Yuki Maruyama RNA interference (RNAi) is a powerful tool to specifically suppress gene expression in both invertebrates and vertebrates, therefore, it has not only been used widely to study gene function in insects, also thought to be available for application to pest management. However, practical utilization w...

2012
Khagendra Raj Baral

Despite weeds are a serious threat to promotion of organic farming, relatively less attention is given to research on weed management. This article explores a scope of integration of conservation agriculture for weed control and soil protection under organic farming. Limitation in the use of agro-chemicals under OF promotes intensive tillage for weed control. Mostly, tillage leads to depletion ...

2013
Susana Santos Carla Crespo Neuza Silva Maria Cristina Canavarro

Correspondence concerning this article should be addressed to: Susana Santos and Carla Crespo Faculdade de Psicologia e Ciências da Educação, Universidade de Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal. E-mail: [email protected] Note. This research was supported by PEst-OE/PSI/UI0192/2011 Projecto Estratégico Instituto de Psicologia Cognitiva, Desenvolvimen...

2010
Richard Clayton Phil Cowan

Context. Significant resources are spent annually in New Zealand controlling pests to mitigate impacts on native biodiversity and agricultural production, but there are few reliable estimates of the benefits. Concerns have been expressed about inconsistent monitoringmethodologies, differing frequencies and intensities of control across organisations, and poor definition of desired outcomes. Aim...

2014
Pierre Stratonovitch Jan Elias Ian Denholm Russell Slater Mikhail A. Semenov

Preventing a pest population from damaging an agricultural crop and, at the same time, preventing the development of pesticide resistance is a major challenge in crop protection. Understanding how farming practices and environmental factors interact with pest characteristics to influence the spread of resistance is a difficult and complex task. It is extremely challenging to investigate such in...

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