EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., HELAL, H., EL-MEZAIEN, A. (1997). LARVAL POPULATION OF LIRIOMYZA CONGESTA (BECK.) (DIPTERA: AGROMYZIDAE) ON FABA BEAN AND ITS RELATION TO CERTAIN WEATHER FACTORS AT KAFR EL-SHEIKH GOVERNORATE, EGYPT. Egyptian Journal of Agricultural Research, 75(4), 961-967. doi: 10.21608/ejar.1997.426116
ABDEL-MONIAM S. EL-KHOULY; EL-SAYED M. E. KHALAFALLA; MONIAR M. METWALLY; HELAL A. HELAL; ALANSARY B. EL-MEZAIEN. "LARVAL POPULATION OF LIRIOMYZA CONGESTA (BECK.) (DIPTERA: AGROMYZIDAE) ON FABA BEAN AND ITS RELATION TO CERTAIN WEATHER FACTORS AT KAFR EL-SHEIKH GOVERNORATE, EGYPT". Egyptian Journal of Agricultural Research, 75, 4, 1997, 961-967. doi: 10.21608/ejar.1997.426116
EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., HELAL, H., EL-MEZAIEN, A. (1997). 'LARVAL POPULATION OF LIRIOMYZA CONGESTA (BECK.) (DIPTERA: AGROMYZIDAE) ON FABA BEAN AND ITS RELATION TO CERTAIN WEATHER FACTORS AT KAFR EL-SHEIKH GOVERNORATE, EGYPT', Egyptian Journal of Agricultural Research, 75(4), pp. 961-967. doi: 10.21608/ejar.1997.426116
EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., HELAL, H., EL-MEZAIEN, A. LARVAL POPULATION OF LIRIOMYZA CONGESTA (BECK.) (DIPTERA: AGROMYZIDAE) ON FABA BEAN AND ITS RELATION TO CERTAIN WEATHER FACTORS AT KAFR EL-SHEIKH GOVERNORATE, EGYPT. Egyptian Journal of Agricultural Research, 1997; 75(4): 961-967. doi: 10.21608/ejar.1997.426116
LARVAL POPULATION OF LIRIOMYZA CONGESTA (BECK.) (DIPTERA: AGROMYZIDAE) ON FABA BEAN AND ITS RELATION TO CERTAIN WEATHER FACTORS AT KAFR EL-SHEIKH GOVERNORATE, EGYPT
1Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
2Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
An experiment was carried out at the Agricultural Research Station, Kafr El-Sheikh, to study the larval population of Liriomyza congesta (Beck.) on faba bean plants and its relation to certain weather factors (weekly means of temperature and relative humidity) as well as the number of its generations during 1991/92 and 1992/93 seasons. Weekly mean numbers of live larvae of L.congesta revealed that larval population was lower during 1991/92 than 1992/93. Three population peaks were observed and three generations of larvae took place between December and April. For both seasons of investigation, the highest peak occurred by March 9. Weekly means of temperature exhibited positive correlation with larval population during both seasons, but the effect of the same weather factor was insignificant during the first season and highly significant during the second one. On the other hand, relative humidity induced negative and insignificant relationship during both seasons. The combined effect of the two considered weather factors was more pronounced on larval population during the second season as it was responsible for 73.90% of the changes in population in 1992/93 compared to 58.53% in 1991/92.
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