نتایج جستجو برای: pest

تعداد نتایج: 16983  

Journal: :Current opinion in insect science 2015
David J Biddinger Edwin G Rajotte

In this chapter we argue that while pesticides can be harmful to pollinators, when they are used in an integrated pest and pollinator management (IPPM) context, both pest management and pollinator protection may be achieved. Our growing knowledge of the impacts of pesticides on honey bees as well as bumble bees and solitary bees allows us to use the latitude we have in pest management including...

Journal: :Nature 1997

2008

Within the past decade an unusual decline of black walnut (Juglans nigra) has been observed in several western states. Initial symptoms involve a yellowing and thinning of the upper crown, which progresses to include death of progressively larger branches (Figure 1). During the final stages large areas of foliage may rapidly wilt. Trees often are killed within three years after initial symptoms...

Journal: :Insect science 2015
Nancy A Schellhorn Hazel R Parry Sarina Macfadyen Yongmo Wang Myron P Zalucki

Areawide management has a long history of achieving solutions that target pests, however, there has been little focus on the areawide management of arthropod natural enemies. Landscape ecology studies that show a positive relationship between natural enemy abundance and habitat diversity demonstrate landscape-dependent pest suppression, but have not yet clearly linked their findings to pest man...

Journal: :Theoretical population biology 1998
A Gragnani M Gatto S Rinaldi

We present and analyze a nonlinear dynamical system modelling forest-pests interactions and the way they are affected by acidic deposition. The model includes mechanisms of carbon and nitrogen exchange between soil and vegetation, biomass decomposition and microbial mineralization, and defoliation by pest grazers, which are partially controlled by avian or mammalian predators. Acidic deposition...

Pawan Singh Bhandari

The study was conducted among the two farmer groups in Bhaktapur and Kavre districts of Nepal. The main objective of the study is to evaluate the effectiveness of IPM FFS on creating awareness and disseminating the knowledge on sustainable pest management to the farmers and to assess the relationships between enhanced IPM knowledge and adoption of IPM strategies by the farmers. The study has be...

Journal: :Proceedings. Biological sciences 2007
Takahiro Hosokawa Yoshitomo Kikuchi Masakazu Shimada Takema Fukatsu

The origin of specific insect genotypes that enable efficient use of agricultural plants is an important subject not only in applied fields like pest control and management but also in basic disciplines like evolutionary biology. Conventionally, it has been presupposed that such pest-related ecological traits are attributed to genes encoded in the insect genomes. Here, however, we report that p...

2015
Kaomud Tyagi Vikas Kumar Devkant Singha Rajasree Chakraborty

South East Asia pest thrips species, Thrips parvispinus (Karny), is a serious pest on a number of agricultural and horticultural crops in a number of plant families. Based on an integrated approach of morphology and DNA barcoding, invasion of this serious pest is reported first time from India on papaya plantations. Molecular data have corroborated with the morphological identification. Haploty...

2016
John f. tooker

The goal of this paper is to highlight important benefits and limitations of ubiquitous technology-based approaches to pest control that are often utilized outside the framework of integrated pest management (IPM). Particularly in Pennsylvania and other states on the fringe of the Cornbelt, where pest pressures can be lower or different than in large portions of the Midwest, farmers and pest ma...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید