منابع مشابه
Control of Agricultural Pests
All over the world a huge effort is being made to fight these pests and now new weapons have been added to man's armoury in this battle. These are radioactive isotopes and radiation sources. Their contribution to the control of agricultural pests is not yet precisely calculable, but several promising lines of attack have been opened up and some concrete r e sults already achieved. The main valu...
متن کاملModelling the impacts of pests and diseases on agricultural systems
The improvement and application of pest and disease models to analyse and predict yield losses including those due to climate change is still a challenge for the scientific community. Applied modelling of crop diseases and pests has mostly targeted the development of support capabilities to schedule scouting or pesticide applications. There is a need for research to both broaden the scope and e...
متن کاملPests Pathogens and Poverty: Biological Invasions and Agricultural Dependence
The problem addressed in this paper is the linkage between poverty and invasive alien species (IAS) – the introduction, establishment and spread of species outside of their original range. There are two main dimensions to the problem. One is the connection between poverty and the likelihood of the introduction, establishment or spread of invasive species. It includes the relation between povert...
متن کاملAgamermis (Nematoda: Mermithidae) Infection in South Carolina Agricultural Pests.
Native and invasive stink bugs (Hemiptera: Pentatomidae) and the closely related invasive Megacopta cribraria (Hemiptera: Plataspidae) are agricultural pests in the southeastern United States. Natural enemies, from various phyla, parasitize these pests and contribute to population regulation. We specifically investigated Nematoda infections in pentatomid and plataspid pests in one soybean field...
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ژورنال
عنوان ژورنال: Nature
سال: 1964
ISSN: 0028-0836,1476-4687
DOI: 10.1038/204416b0