Plant diseases threaten both food security and the botanical diversity of natural ecosystems. Substantial research effort is focused on pathogen detection and control, with detailed risk management available for many plant diseases. Risk can be assessed using analytical techniques that account for disease pressure both spatially and temporally. We suggest that such technical assessments of dise...

Continued world population growth results in increased emission of gases from agriculture, combustion of fossil fuels, and industrial processes. This causes changes in the chemical composition of the atmosphere. Evidence is emerging that increased solar ultraviolet-B (UV-B) radiation is reaching the earth's atmosphere, due to stratospheric ozone depletion. Carbon dioxide (CO(2)), ozone (O(3)) a...

Global climate has changed since pre-industrial times. Atmospheric CO2, a major greenhouse gas, has increased by nearly 30% and temperature has risen by 0.3 to 0.6 C. The intergovernmental panel on climate change predicts that with the current emission scenario, global mean temperature would rise between 0.9 and 3.5 C by the year 2100. There are, however, many uncertainties that in ̄uence these ...

background & aim:  investigation use of medical plants and industrial utilization of phytomedicines is necessary in veterinary medicine. field investigation of use of medical plants in treatment of diseases of sheep and goat was the aim of present study. martial & methods: this study was done in southern area of ilam province at 2008. at first, question sheet was designed for 36 diseas...

Actually, with the objective to find new technologies, ecologically or environmentally safer, for the control of plant diseases, mainly in organic growth, alternative methods for the control of phytopathogens are been development. This kind of alternative methods are been investigated in our ‘Biological and Alternative Control of Plant Diseases’ research group. An overview of the our researches...

INTRODUCTION TO PLANT PATHOLOGY. New second edition By FREERICK DEFOREST HFEALD, Professor Emeritus of Plant Pathology, The State College of Washington. McGraw-Hill Publications in the Agricultural Sciences. 603 pages, 6 x 9, 246 illustrations, $4.00 In revising this well-known text, the author has retained his general plan of presenting a rounded, detailed introduction, in which the significan...

blackleg disease of oilseed rape, caused by leptosphaeria maculans, is one of the three most important diseases of the plant in iran. it is also considered as one of the most important diseases of oilseed rape worldwide which causes serious yield losses. during 2010 the oilseed rape fields were surveyed at province golestan and plant samples demonstrating suspected symptoms of the disease were ...

abstract sclerogenic fungal pathogens, are among the most important diseases of rice plant. sheath blight caused by rhizoctonia solani is one of the economically important diseases that attack a wide range of hosts. stem rot (magnaporthe salvinii) has also been found with different severity in most fields of guilan province. to determine sclerogenic fungal pathogens of rice plant, 141 isolates ...