Postrelease studies can provide data with which to evaluate expectations based on prerelease tests of biological control insects. In 2004, we observed Trichosirocalus horridus Panzer (Coleoptera: Curculionidae), the rosette weevil introduced into North America against Eurasian thistles, feeding on native tall thistle, Cirsium altissimum L. Spreng., in tallgrass prairie. In this study, we examin...

Abstract The current study aimed to evaluate the effect of adding different levels milk thistle Silybum marianum cereal powder ration on productive and physiological performance laying hens. experiment was performed from age 49 weeks 64 hens age. A total 81 were randomly distributed three treatments each treatment with replicates nine birds in replicate. experimental as following : Treatment 1 ...

Canada thistle remains the most common and troublesome weed of pastures, roadsides and other areas of low-maintenance sods. Even though numerous herbicides have excellent activity on Canada thistle, the extensive root system of this species complicates longterm management. This paper will discuss recent research conducted in Alberta, Canada investigating the role of pasture fertilization in Can...

in order to study individual and integrated effects of biological, organic and chemical fertilizers on milk thistle (silybum marianum l.) quantitative and qualitative traits, a field experiment was conducted at research station, faculty of agriculture, ferdowsi university of mashhad, iran during growing season of 2010-2011. a complete randomized block design with twelve treatments and three rep...

Postrelease studies can provide data with which to evaluate expectations based on prerelease tests of biological control insects. In 2004, we observed Trichosirocalus horridus Panzer (Coleoptera: Curculionidae), the rosette weevil introduced into North America against Eurasian thistles, feeding on native tall thistle, Cirsium altissimum L. Spreng., in tallgrass prairie. In this study, we examin...

Abstract Milk thistle Silybum marianum (L.) Gaertn. is one of the most researched medicinal plants, but at same time it belongs to crops with wide industry potential whose growth requirements for marginal agroecological conditions or response agronomic interventions has not yet been sufficiently studied. The aim present research was verify effect mineral nutrition (NPK 200 kg/ha) and humic acid...