نتایج جستجو برای: pyrethrum

تعداد نتایج: 290  

2002
Robert F. Ryan

Pyrethrum is derived from the dried flowers of the plant Tanacetum cinerariifolium. The name given to the active insecticidal components of the dried flowers is "pyrethrins". Tasmanian pyrethrum production is among the most innovative, high-tech agricultural industries in the world. With an output that nearly quadrupled since 1996, Botanical Resources Australia (BRA) now supplies more then 30% ...

Journal: :Journal of nematology 1995
J L Ogallo M A McClure

Advance inoculation of the tomato cv. Celebrity or the pyrethrum clone 223 with host-incompatible Meloidogyne incognita or M. javanica elicited induced resistance to host-compatible M. hapla in pot and field experiments. Induced resistance increased with the length of the time between inoculations and with the population density of the induction inoculum. Optimum interval before challenge inocu...

Journal: :Agronomy 2022

Pyrethrum is a perennial herbaceous plant endemic to the eastern coast of Adriatic Sea, and introduced in large areas nearly all continents, where it cultivated for industrial extraction pyrethrins. Pyrethrins are group six closely related monoterpene esters, widely used as natural insecticides. The world production pyrethrins lower than market demand, wider introduction this crop within Medite...

2017
Jason B. Scott David H. Gent Sarah J. Pethybridge Tim Groom Frank S. Hay

Scott, J. B., Gent, D. H., Pethybridge, S. J., Groom, T., and Hay, F. S. 2014. Crop damage from Sclerotinia crown rot and risk factors in pyrethrum. Plant Dis. 98:103-111. Sclerotinia crown rot, caused by Sclerotinia sclerotiorum and S. minor, is a prevalent disease in pyrethrum fields in Australia. Management involves fungicide applications during the rosette stage of plant development from au...

2017
Kameshwaran Muralikrishnan Sharath Asokan P. R. Geetha Priya K. Syed Zameer Ahmed G. Ayyappadasan

AIM The aim of the study was to evaluate the local anesthetic activity of root extracts of the Anacyclus pyrethrum, and to check its effect of interaction at the site of injection in guinea pigs. MATERIALS AND METHODS The study sample included thirty guinea pigs each weighing 450-500 g, maintained under standard conditions. The root extracts were prepared using three solvents, in 1% and 2% co...

Journal: :Bulletin of the Entomological Society of America 1974

Journal: :Deutsches Aerzteblatt Online 2017

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