This study was carried out to evaluate the biological effects of two IGRs (Match and Baycidal) on Culex pipiens mosquitoes when fed the adults on sugar solution mixed with 0.1, 0.5 and 1 ppm of each compound. Some delayed effects of these treatments were also determined. The results indicated that the use of each of the tested IGRs caused a reduction in the blood-feeding activity of mosquito fe...

the effect of four concentrations (0.5, 1, 2.5, and 5 mg/lit) of two insect growth regulators ‎‎(igrs) of buprofezin and pyriproxifen on 1 and 4-day eggs, different nymphal instars, and ‎pupae of trialeurodes vaporariorum (homoptera: aleyrodidae), was studied at 26 ± 2 °c, 80 ± ‎‎5% rh, and 16: 8 (l: d) on lantana camara in the greenhouse. the effect of both igrs was ‎positively related to incr...

Intergenic Sequence Inspector (ISI) is a program that helps in identifying bacterial ribonucleic acids (RNAs). It automatically extracts, selects and visualizes candidate intergenic regions (IGRs) that bear conservations between phylogenetically related species, displaying sequence and structural signatures of RNA genes encompassing putative promoters, terminators, RNA secondary structure predi...

The present study has revealed that, the temperature has a crucial role among the observed physiochemical parameters on the growth and survival of P. margaritifera spat. Instantaneous growth rates (IGRs) in DVM, APM and TWT were calculated and used to assess the variation in growth of spat reared with different feed mixtures (FM-1 8) of five diatoms and stocking densities (SD-10, 20 and 30). Am...

The insect growth regulators (IGRs) tebufenozide and methoxyfenozide and the broad-spectrum insecticides azinphosmethyl, carbaryl, and fenpropathrin were compared for their activity against adult, egg, and larval stages of the grape berry moth, Endopiza viteana (Clemens) (Lepidoptera: Tortricidae), under laboratory and vineyard conditions. Adult mortality was not affected by exposure to field-e...

Gene expression of nonsegmented negative-sense RNA viruses involves sequential synthesis of monocistronic mRNAs and transcriptional attenuation at gene borders resulting in a transcript gradient. To address the role of the heterogeneous rabies virus (RV) intergenic regions (IGRs) in transcription attenuation, we constructed bicistronic model RNAs in which two reporter genes are separated by the...