نتایج جستجو برای: cockroaches
تعداد نتایج: 1305 فیلتر نتایج به سال:
Urbanization is a product of human population growth and industrialization. In industrialized as well as developing countries, urbanization has moved humans away from many arthropod pests, but into intimate associations with others. Since the introduction of synthetic organic insecticides, urban dwellers have fought pests almost exclusively with repeated applications of chemicals. In agricultur...
The ciliate Nyctotherus ovalis occurs in high numbers in the hindgut of the American cockroach (Periplaneta americana) and harbors methanogenic bacteria as endosymbionts. The contribution of these hindgut microorganisms to metabolic and developmental processes of P. americana was studied by comparing cultures of cockroaches in which the composition of the hindgut microbial population was altere...
BACKGROUND & OBJECTIVES Resistance amongst cockroaches has been reported to most of the spray insecticides apart from the problem of food contamination and inconvenience. Gel baits which can be selectively applied have been found effective in control of cockroaches in laboratory studies but very few field studies are available. This trial was planned to evaluate the efficacy of fipronil (0.01%)...
background : cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various pathogens of diseases. the present study was conducted from april 2013 to march 2014 in various human dwelling localities of urban area of district lahore, pakistan. methods : coc...
A field study on cockroach species diversity, and influence of sanitation on infestation level, was conducted on six different locations (four apartment settings [Tmas, Bmaung2, Relau and Kmelayu], a residential slum setting [Sg Batu] and a terrace houses setting [Bmaungl]) in Penang Island, Malaysia. A total number of 192 residential premises were sampled and 3,289 cockroaches, consisting of 1...
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