The majority of pollinating insects are generalists whose lifetimes overlap flowering periods of many potentially suitable plant species. Such generality is instrumental in allowing exotic plant species to invade pollination networks. The particulars of how existing networks change in response to an invasive plant over the course of its phenology are not well characterized, but may shed light o...

Cirsium arvense (L.) Scop., commonly known as creeping thistle, is a weed of Asteraceae. This study was undertaken to explore various phytoconstituents present in flower this weed. To achieve goal, the dried flowers were soaked methanol for one week and filtered. methanolic extract subjected GC-MS analysis 7 compounds identified. These included olean-12-en-3-ol, acetate, (3β)- (63.87%), lanosta...

The thistle-infesting fruit fly Tephritis conura Loew (Diptera: Tephritidae) forms host races on the melancholy thistle, Cirsium hetewphyllum (L.) Hill (Asterales: Asteraceae) and the cabbage thistle, Cirsium olemceum (L.). Scop. Previous research indicates that the host shift occurred from C. hetewphyllum to C. oleraceum. In this paper we address whether the host shift involved physiological a...

This study investigated the antioxidant activity of methanol (MeOH) and water extracts from roots of Cirsium japonicumin vitro. MeOH extract showed a stronger free radical scavenging activity than water extract. However, both of extracts showed a concentration dependent hydroxyl radical scavenging activity, reducing power and metal chelating ability. MeOH extract had greater phenolic and flavon...

The article presents the effect of different insertion buckwheat as a catch crop on weediness spring barley and bean crops. research was carried out in 2019–2020 at farm Virmantas Pocius, located Pakruojis District, two fields, near Draudeliai Village. experiment variants were following: 1) tillage cover crops autumn (control); 2) shallow to depth 5 cm autumn; 3) deep 20 autumn. In control crop...