Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Mohamed Y. Hashem"'
Publikováno v:
Journal of Stored Products Research. 98:101988
Autor:
Shimaa S. H. Khalil, Youssef Ahmed Mahmoud, Sayeda S. Ahmed, Mohamed Y. Hashem, Adel Anwar Ahmed
Publikováno v:
Archives of Phytopathology and Plant Protection. 51:1090-1105
Effect of modified atmospheres (MAs) containing CO2 at 20, 40, 60 and 80% or containing N2 at 97 and 98% on the mortality of Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) sixth instar larvae was studied to determine the LT values at 30 °C. T
Autor:
Sayeda S. Ahmed, Mohamed Y. Hashem
Publikováno v:
African Entomology. 25:183-192
This study aimed to evaluate different modified atmospheres as an environmental friendly procedure for controlling the fennel wasp Systole sp. The tested modified atmospheres (MAs) contained 10, 20, 30, 40, 50, 60, 70 and 80 % of carbon dioxide (CO2)
Autor:
Mohamed Y. Hashem, Youssef Ahmed Mahmoud, Shimaa S. H. Khalil, Sayeda S. Ahmed, Adel Anwar Ahmed
Publikováno v:
Journal of Stored Products Research. 69:99-105
The aim of this study was to evaluate the susceptibility of the egg stage of the rice moth Corcyra cephalonica to modified atmospheres (MAs) enriched with CO2 or N2 at 25, 30 and 35 °C combined with various exposure times. The tested modified atmosp
Publikováno v:
Journal of Stored Products Research. 59:17-23
The susceptibility of 4th instar larvae of Sitotroga cerealella to modified atmospheres (MAs) containing 25, 40 and 60% CO2 in air at 27 °C with different exposure periods was determined. Also, changes in the activity level of several enzymes were a
Publikováno v:
Egyptian Journal of Agricultural Research. 92:75-80
Wheat, (Triticum aestivum L.), is a major cereal crop in Egypt. Five commercial wheat varieties: Giza 168, Sakha 93, Beni–Sweif 1, Gemmeiza 7 and Gemmiza 9 were tested at Giza region for susceptibility to the infestation with Atherigona bedfordi du
Publikováno v:
Journal of Stored Products Research. 56:54-59
This study aimed to determine the sensitivity of newly-laid eggs, 4th instar larvae and 3-day-old pupae of Sitotroga cerealella to four modified atmospheres (MAs) containing 30% (MA1), 45% (MA2), 65% (MA3) and 75% (MA4) CO2 in air at 20 ° and 34 °C
Publikováno v:
Archives Of Phytopathology And Plant Protection. 46:575-592
Ethanolic extracts of larval frass of the cotton leaf worm and the black cutworm were prepared and tested to deter the eggs lay of the adults of the same insects. Two different types of food were used for larval feeding. Extracts fractions were ident
Autor:
Mohamed Y. Hashem, Sayeda S. Ahmed
Publikováno v:
Journal of Stored Products Research. 51:49-55
The susceptibility of the different life stages of the Indian meal moth Plodia interpunctella and almond moth Ephestia (Cadra) cautella to different modified atmospheres (MAs) containing various concentrations of carbon dioxide (CO2) was studied as a
Publikováno v:
Journal of Stored Products Research. 50:57-61
The angoumois grain moth, Sitotroga cerealella is recognized as a common pest of grains world-wide. This investigation aimed at determining the most effective CO 2 concentration in air against the immature stages of the pest in laboratory tests. The