the chemical composition of the essential oil obtained from the aerial parts of laurus nobilis l. has been examined by gas chromatography (gc) and gc- mass spectrometery (ms). the main components of the oil were identified. 1,8-cineole was the major component in the oil together with b-terpinyl acetate, terpinene-4-ol, a-pinene, b-pinene, p-cymene, linalool and terpinene-4-ylacetate. the essent...

In recent years, highly potent mosquitocidal strains of the microbial agent Bacillus sphaericus (Bsph) have been isolated and developed for the control of mosquito larvae around the world. Laboratory selection experiments with the most active strains and their use in large-scale operational mosquito control programs resulted in the emergence of resistance in larvae of the Culex pipiens complex....

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...

Water from a mosquito larval habitat in Florida was collected periodically for one year. After removing debris and macroscopic organisms, the small particles were concentrated by continuous flow centrifugation and examined microscopically. Anopheles quadrimaculatus, Culex salinarius and Heliothis zea larvae were exposed to the concentrates. The microsporidia isolated were Nosema, Pleistophora, ...

Information on the accumulation of nutriquitoes per cup (400 ml) in duplicate. The adults tional reserves during larval development of had access to water only and were predomimosquitoes is practically non-existent. Wigglesnantly at rest. These experiments were carried worth (1942) had shown with elegant histo ) t logiout a year later and repeated 6 times. The assays cal evidence that fourth in...

Abstract In many European countries, cemeteries are found to be suitable habitats for the proliferation of native and invasive mosquito species. The study aimed assess first time in Poland suitability urban larvae development water supply wells. From May September 2019 three Wroclaw (SW Poland), a total 757 inspection wells were carried out. development, expressed as general container index (GC...

Abstract Mosquito larvae play an essential role in the ecological, and many of them can spread human animal diseases, including Macaca fascicularis . Information on mosquito species their habitats provide overview mosquitoes vector-borne diseases M. captivity area. This study aimed to identify diversity larvae, affinity association, larval breeding sites around area Bogor, West Java. were colle...

OBJECTIVE The ability of the native larvivorous fish Aplocheilus panchax (Hamilton, 1822) (Cyprinodontiformes: Aplocheilidae) as predator of mosquito larvae was assessed under laboratory conditions using multiple prey and habitat conditions. METHODS The consumption of larvae of the mosquito Culex quinquefasciatus Say 1823 (Diptera: Culicidae) by A. panchax was evaluated in the presence of tub...

The present study was intended to determine the antioxidant, larvicidal, and cytotoxic potential of various extracts of Asplenium aethiopicum (Burm. f.) Becherer. Antioxidant potential of the extracts was determined by the DPPH radical scavenging, phosphomolybdenum, and scavenging of H2O2. Larvicidal activity of Asplenium aethiopicum was performed against the fourth instar larvae Culex quinquef...

Horizontal transmission testing with an Amblyospora species from the mosquito Culex salinarius has documented the involvement of a copepod intermediate host. Meiospores (one type of uninucleate spore) of the Amblyospora sp. were infectious per os to female Macrocyclops albidus adults. All developmental stages in the copepod had unpaired nuclei (were haplophasic), starting with the sporoplasms f...