Coloured light trap Achroia grisella Fab Field experiments were conducted to determine the attractive action of different colours (red, yellow, green, blue, white and black) to adult greater ,Galleria mellonella L. and lesser, Achroia grisella Fab., (Lepidoptera: Pyralidae) and to assess the influence of trap colour on their capture moths in plastic bottles baited traps. The results demonstrated, Galleria mellonella L. and Achroia grisella Fab. can distinguish between various colours , with regard to treatment colours light traps with red light, black, blue trapped significantly higher numbers of both greater and lesser wax moths followed by green, yellow and white traps. In conclusion, a trap with red and black light colour was the best attractive equipment for the wax moths. Where, the red colour traps caught the greatest number of moths, recording, 50.0% of the total moth captured, while the, white color traps caught the fewest number of moths recording only 23.27% with average 42.977% when the traps is far from the colonies by 6 meters only, while they were 50.94 and 3.7% with average 38.58 % when the distance between the colonies and light trap were 12 meters. Future research is recommended for better understanding of the effect of trap color on the diversity and abundance of non-target insects captured.
Studies were accomplished to identify the important factors affecting successful virgin queens production in Sohag during 2007 and 2008 years. In order to find out the best teaching for rearing virgin queens by grafting method. Markedly differences in the mean number of virgin queens between single and double grafting methods, specially in spring and autumn seasons; in spring mean number of accepted cells of 43.77 with 37.66 emerged queens and 49.85 with 47.07 emerged queens were obtained when single and double grafting were used methods respectively. Spring season was favorable for queens rearing, followed by autumn and summer, while winter season came the latest. There was a clear relationship between larval age at grafting and the larval acceptance, one day old worker larvae gave the highest number of virgin queens emerged. On the other hand, the queen must be removed outside the hive 48 hrs before starting larval grafting to obtain the highest numbers of accepted queen cells. In general, double grafting, situating the cell cups frame in the hive center of the hive and fitting the cell cups on the top and bottom bar, gave the best method for queens acceptance and queens production. However, cell cups fitted on the edges of the bars were successfully reared when ambient temperatures were high in spring season, but queen cells in the center of the hive's brood nest were correlated with higher temperature and had a greater chance for emergence.
The efficacy of natural and chemical compounds were investigated against wax moth greater, Galleria mellonella L.and lesser, Acheroia gresilla Fab.. Spinosad and Bacillus thuringiensis (Agerin) as natural compounds , while Formic acid, oxalic acid, Phostoxin, and Bara-dichlorobenzen were used as chemical compounds. The mortality percentage of wax moths dead larvae were 99.33, 90, 64 and 56.66 by using Phostoxin, PDB, Formic acid and Oxalic acid , respectively , while these mortality was 79.67 and 74.33 % when using Spinosad and Agiren. Results obtained in this study indicated that, the highly and lowest effecte was Phostoxin and Oxalic acid respectively against larvae of wax moths
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