Alkyl and aryl neoalkanamides with a total carbon number between 11 and 14, or within a molecular weight range between 185 and 227, were highly effective repellents of male German cockroaches, Blattella germanica (L.). Comparison with known repellents showed that members of this unique family of secondary amides are among the most effective and long-lasting repellents of cockroaches examined to...

A field trial on the control effect of fipronil poison bait against German cockroaches (Blatella germanica) was carried out at different restaurant types in Sinchon, Seoul, Republic of Korea. Monitoring was performed applying food baited traps for 2 days per week. Reduction rates of German cockroaches by applying fipronil baits were 90.9% at Korean restaurants, 96.4% at Chinese restaurants, and...

b a ckground: the efficacy of essential oil of chenopodium ambrosioides flowering aerial parts and its three main active ingredients was evaluated against blattella germanica male adults. m e t hods: composition of essential oil was determined by gc-ms. topical application bioassay was used to evalu- ate contact toxicity of essential oil and three main components. fumigant toxicity of essential...

Myers, Aaron J. M.S., Purdue University, May 2015. Identification, description, and activity of proteins in the tergal glands of the German cockroach, Blattella germanica (L.). Major Professors: Gary Bennett and Mike Scharf. German cockroaches are important urban pests that have been linked to asthma and serious allergic reactions in sensitized individuals. In this research project I, (i) ident...

90 he German cockroach, with its long history of close association with humans, is most often regarded as merely an unpleasant pest with the potential to transmit disease-causing microbes. However, recent research has demonstrated that this insidious pest has a much greater impact on public health than was once thought. German cockroaches, first implicated in allergic disease nearly 40 years ag...

This study examined the effectiveness and repellency value of commercial insecticide initial “KB” (Deltamethrin [0.6%]) to German cockroaches. The research was performed by contact toxicity repellent bioassay method using two populations; VCRU-WHO RMKN-BKT. criteria are based on knockdown time (KT) lethal (LT) that refers Directorate Fertilizers Pesticides Indonesia, 2004. Results demonstrated ...

The German cockroach is an important household insect pest mechanically involved in transmission of a variety of diseases to humans. Different classes of insecticides have extensively been used for its control leading to insecticide resistance development. Hence, for an optimal control of this pest, the status and underlying mechanisms of insecticide resistance should be studied in this group o...

Glucose-aversion is a heritable trait that evolved in a number of German cockroach (Blattella germanica L.) populations in response to strong selection with glucose-containing insecticide baits. However, in the absence of glucose-containing bait, glucose-averse (GA) cockroaches have lower performance than wild-type (WT) cockroaches in several fitness-determining traits. We allocated 48 caged po...