Fundamentals of biological control of weeds
نویسندگان
چکیده
منابع مشابه
Biological control of weeds.
Classical biological control, i.e. the introduction and release of exotic insects, mites, or pathogens to give permanent control, is the predominant method in weed biocontrol. Inundative releases of predators and integrated pest management are less widely used. The United States, Australia, South Africa, Canada, and New Zealand use biocontrol the most. Weeds in natural ecosystems are increasing...
متن کاملBiological Control of Weeds Using Plant Pathogens
Changes in program directions at the Saskatoon Research Centre have resulted in the organization of a research team equipped to develop microorganisms for the biological control of important agricultural weeds. This paper presents a brief introduction to the science of inundative biological control and an overview of the research progress made on controlling Canada thistle, wild oats, and green...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولApplying molecular-based approaches to classical biological control of weeds
The use of molecular techniques is rapidly growing as the tools have become more diverse and powerful, more widely available, and easier to implement. Molecular analyses are able to elucidate information about target weeds that is critical to improving control success, such as taxonomic clarification, evidence of hybridization and cryptic species, better development of test plant lists, populat...
متن کاملBiological control of weeds in compacted soil cultures.
Biological Control of Weeds in Compacted Soil Cultures: V. P. Sokoloff 271 Technical Papers Absorption Spectra of Chlorophylls in Solutions at -Low Temperatures-Equilibria Between Isomers: Simon Freed and Kenneth M. Sancier _ 275 The Purlnonay Circulation as a Source of Leucocytes-bid Platelets in Man: H. R. Bierman, K. H. Kelly/,F. W. King, and N. L. Petro,kis 276 Effects of Male Hormone upon ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Hilgardia
سال: 1957
ISSN: 0073-2230
DOI: 10.3733/hilg.v27n03p101