Progress in control of arboborne (arthropod bites to person) diseases focuses mainly on chemical interventions like residual sprayings and insecticide treated nets, so problems of using pesticides continue to exist in many countries. Non-chemical control program using source management for mosquitoes control has been promoted or tested in several experimental projects. Source reduction primaril...

<em>Almost all villages in Banda Aceh City are one of the endemic areas for Dengue Hemorrhagic Fever. Various efforts have been made to reduce dengue cases by means fumigation and larvicides. This study aimed determine differences effectiveness temefos larvicides with different concentrations on mortality Ae. aegypti three City, namely Punge Blang Cut, Ateuk Pahlawan Jeulingke villages. T...

investigation on the current response of an.stephensi larvae to four who recommended larvicides, i.e. malathion, temephos, chlorpyrifos and fenitrothion, were carried out in the laboratory in 1999. diagnostic concentrations of pesticides only yielded 100% mortality with malathion. in contrast, levels of susceptibility to temphos, chlorpyrifos (0.025 mg/l) and temephos (0.625 mg/l) killed 72%, 9...

The natural valleys of large rivers provide suitable nesting and foraging sites for many bird species. In this study, we assess the effects water fluctuations during breeding season on Common Sandpipers’ nest survival a semi-natural section Vistula River, evaluate which tactics species can adopt to minimise long-term scale. Birds avoid losses due flooding by adjusting timing occurrence extreme ...

To investigate the effect of NaCl concentration on the survival of Aedes aegypti larvae, samples of Aedes aegypti larvae were collected from some discarded container, artificial pool from the urban area of Wahga town and exposed to 10%, 15% and 20% of NaCl concentration. The results of this study suggest that NaCl higher concentration can be used in a more human non-lethal chemical approach and...

A successful attempt of using sodium salt of a water- insoluble larvicide, as an alternative to the use of solutions of such larvicides in acetone and water, for the larvicidal studies is made, in the present study biochanin - A an isoflavone isolated from the flowers of Dalbergia sissoides (grah) when assessed for larvicidal study as its sodium salt on the fourth instar larvae of Culex quinque...

Background: Transmission of Dengue Hemorrhagic Fever (DHF) is strongly influenced by the presence Aedes aegypti mosquito larvae. The most effective method for tackling DHF killing Reducing negative impact using chemical larvicides can be done through a safer alternative model, namely natural from plants. plant studied with characteristic ability to kill larvae papaya leaves. Papaya leaf extract...

Introduction No other European gull has shown such a dramatic and rapid change of distribution in the last decades as the Mediterranean Gull Larus melanocephalus. Whereas in the 1940s breeding locations were restricted to coastal areas of the Black Sea in the Ukraine, Mediterranean Gulls can now be found nesting in many places scattered over Europe, in locations as near to Scotland as the Nethe...