Phages targeting specific bacteria have been used for control of bacterial pathogens in plants and humans. We report results prophylactic use a natural cocktail phages on plants. Water was collected from upper reaches the Alaknanda river where more than 200 isolates reported. The water April 2020 before onset monsoons stored with sediments. sprayed twice weekly spinach, cabbage coriander did no...

Thermal barrier coatings were prepared on magnesium alloy substrate by plasma spraying, and thermal shock test, test arc wind tunnel carried out. The failure mode, microstructure phase transition of coating after analyzed SEM XRD change temperature rise rate during is means measurement. analysis results show that the structure sprayed surface consistent before shock, no occurs spraying shock. m...

Plasma-sprayed ceramic coatings are being developed for many applications such as thermal barriers and corrosion protection. In plasma spraying, the ceramic powder is heated into semi-molten droplets for projection onto a target surface by a high velocity gas stream. This coating is then rapidly cooled to form a solid layer. By repeating this process for multiple layers, a coating thickness fro...

Follow-up studies were carried out from 1989 to 1998 after withdrawal of deltamethrin indoor spraying to evaluate the recovery rate of a population of Anopheles culicifacies resistant to dichlorodiphenyltrichloroethane (DDT) and hexachlorocyclohexane (HCH) in selected villages in Uttar Pradesh State, India. The study revealed 82.4-96.5% reduction in adult density of An. culicifacies and 72.7-96...

BACKGROUND Potential exposure of ground troops in Vietnam to Agent Orange and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) remains controversial despite the passage of 30 years since the Vietnam War. Because of uncertainty over the serum dioxin levels in ground troops at the end of their service in Vietnam, attempts have been made to develop a methodology for characterizing exposure of ground tro...

1. Invasive species are one of the leading threats to biodiversity worldwide. Therefore, chemical herbicides are increasingly used to control invasive plants in natural and semi-natural areas. Little is known about the non-target impacts of these chemicals on native species. 2. We conducted an experiment to test the demographic effects of the herbicide picloram on a native dominant forb, arrowl...

The expansion of dryeration may impose a further problem for insect control with protectants – the high grain temperatures during insecticide spraying. To assess the impact of this procedure on insecticide activity, maize grains at different temperatures (25, 30, 35, 40 and 45 °C) were sprayed with pirimiphos-methyl. Residue analyses were carried out every 30 days and insecticide biological act...