Tithonia diversifolia is an invasive weed commonly found in tropical ecosystems. In this work, we investigate the influence of different abiotic environmental factors on the plant's metabolite profile by multivariate statistical analyses of spectral data deduced by UHPLC-DAD-ESI-HRMS and NMR...

Premise of the study: Tithonia diversifolia (Asteraceae) is an invasive plant species that can outcompete natives and thus poses a great threat to biodiversity in introduced areas. Here, expressed sequence tag-simple sequence repeat (EST-SSR) markers were developed and characterized. Methods and...

Tithonia diversifolia, well-known as Mexican sunflower, is an invasive shrub growing in tropical areas of South America, Asia and Africa where it is used as a traditional medicine, ornamental plant and green biomass to improve soil fertility. Given the traditional uses in the treatment of skin...

Plant biowaste of alien species represents a potential resource for compost production. This study investigated the seed and seedling responses of maize and pea to composts generated from the biowaste of four invasive species in eThekwini, South Africa: Acacia podalyriifolia, Hedychium gardnerianum...

Vegetable production is an economically viable enterprise in Zimbabwe. The most commonly grown leafy vegetable is Brassica napus (rape). The productivity of this vegetable is affected by poor soil fertility, with nitrogen being the most limiting nutrient. An experiment was carried out to evaluate...

Extracts from the leaf of Tithonia diversifolia used in folk medicine for treatment of various ailments were tested for antimalaria and mosquito repellency properties in experimental animals and human volunteers, under the laboratory conditions. Comparison of the effectiveness of Chloroquine with...

The hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), is an introduced pest of unknown origin that is causing severe mortality to hemlocks (Tsuga spp.) in eastern North America. Adelgids also occur on other Tsuga species in western North America and East Asia, but these trees...

Studies were undertaken in 3 old-growth stands of subalpine coniferous forest located in central Japan - altitude 1800 to 2500 m, dominated by Abies mariesii, A. veitchii or Tsuga diversifolia; other species present in all stands were Picea jezoensis and Betula ermanii. Of the 237 gaps investigated ...

Adelges tsugae is maintained at innocuous population levels in Japan on its 2 native hosts, Tsuga diversifolia and T. sieboldii, by host resistance and natural enemies. The most common enemy associated with infestation of A. tsugae in Japan was Diapterobates humeralis, an arboreal oribatid mite...

The dynamics of endemic populations of the scales Fiorinia externa and Nucalaspis tsugae on native Tsuga diversifolia and T. sieboldii and exotic T. canadensis and T. heterophylla in Honshu, Japan are compared with the dynamics of introduced populations of the scales on T. canadensis in...