Yanlin Tian. M.S., Purdue University, May 2015. Potential of ozone technology for german cockroach (Blattella germanica (L.)) management. Major Professors: Linda J Mason and Ameya D Gondhalekar. German cockroaches (Blattella germanica (L.)) are important urban pests that adversely impact human health. Previous studies indicated that ozone technology (ozone gas) can be used as a management tool ...

OBJECTIVES This study aimed to investigate the profile of sensitization to silkworm moth (Bombyx mori) and other 9 common inhalant allergens among patients with allergic diseases in southern China. METHODS A total of 175 patients were tested for serum sIgE against silkworm moth in addition to combinations of other allergens: Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tro...

-The vitellogenins of Hyalophora cecropia and Blattella germanica have similar Stokes' radii (69 and 75,&), sedimentation coefficients (15.9 and 16.8s) and isoelectric points (pH 5.7 and 5.0), and share similar amino acid compositions with vitellogenins of other animals. The two vitellogenins show no immunological crossreaction. Blattella oocytes take up their own vitellogenin in vivo at a rapi...

In Blattella germanica, the German roach or "croton bug," bacteriocytes are found in all individuals of both sexes. These bacteriocytes are scattered throughout the fat tissue and their cytoplasm is filled with microorganisms. Evidence is presented to show that the intracellular parasites are diphtheroidal bacilli. These diphtheroids are transmitted from one generation to another through the ov...

RESULTS: Fifty patients (68.5%) had positive skin test responses. There were positive responses to D. pteronyssinus (52.0%), B. tropicalis (53.4%), T. putrescentiae (15.0%), E. maynei (12.3%), L. destructor (8.2%), B. germanica (20.5%), P. americana (21.9%), Felis catus (10.9%), C. herbarium (2.7%), A. alternata (4.1%), and P. notatun (1.3%). The exposure to mite and cockroach allergens was sim...

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...

Using polymerase chain reactions (PCR) on cDNA, the DNA sequence of a membrane spanning region of a GABA receptor of the red flour beetle, Tribolium castaneum was identified. The deduced amino acid sequence indicates that its basic structure is similar to the GABA receptor of Rdl type subunits of Drosophila melanogaster and of Blattella germanica. Particularly conserved are M1, M2 and M3 segmen...

The Asian cockroach, Blattella asahinai Mizukubo, first introduced to Florida in 1986, has been spreading throughout the southeastern United States. Populations can reach extremely high densities and cause damage to crops as well as become a nuisance in residential settings. Because the German cockroach, Blattella germanica L., is its closest extant relative, we characterized the B. asahinai ma...