HELAL, H., EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., EL-MEZAIEN, A. (1997). PRELIMINARY STUDIES ON THE POPULATION OF LEGUME APHID, APHIS CRACCIVORA (KOCH.) AND JASSIDS, EMPOASCA SPP. ON DIFFERENT FABA BEAN VARIETIES AND BREEDING LINES UNDER THE FIELD CONDITIONS OF KAFR EL-SHEIKH GOVERNORATE, EGYPT.. Egyptian Journal of Agricultural Research, 75(4), 951-959. doi: 10.21608/ejar.1997.426114
HELAL A. HELAL; ABDEL-MONIAM S. EL-KHOULY; EL-SAYED M. E. KHALAFALLA; MONIAR M. METWALLY; ALANSARY B. EL-MEZAIEN. "PRELIMINARY STUDIES ON THE POPULATION OF LEGUME APHID, APHIS CRACCIVORA (KOCH.) AND JASSIDS, EMPOASCA SPP. ON DIFFERENT FABA BEAN VARIETIES AND BREEDING LINES UNDER THE FIELD CONDITIONS OF KAFR EL-SHEIKH GOVERNORATE, EGYPT.". Egyptian Journal of Agricultural Research, 75, 4, 1997, 951-959. doi: 10.21608/ejar.1997.426114
HELAL, H., EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., EL-MEZAIEN, A. (1997). 'PRELIMINARY STUDIES ON THE POPULATION OF LEGUME APHID, APHIS CRACCIVORA (KOCH.) AND JASSIDS, EMPOASCA SPP. ON DIFFERENT FABA BEAN VARIETIES AND BREEDING LINES UNDER THE FIELD CONDITIONS OF KAFR EL-SHEIKH GOVERNORATE, EGYPT.', Egyptian Journal of Agricultural Research, 75(4), pp. 951-959. doi: 10.21608/ejar.1997.426114
HELAL, H., EL-KHOULY, A., KHALAFALLA, E., METWALLY, M., EL-MEZAIEN, A. PRELIMINARY STUDIES ON THE POPULATION OF LEGUME APHID, APHIS CRACCIVORA (KOCH.) AND JASSIDS, EMPOASCA SPP. ON DIFFERENT FABA BEAN VARIETIES AND BREEDING LINES UNDER THE FIELD CONDITIONS OF KAFR EL-SHEIKH GOVERNORATE, EGYPT.. Egyptian Journal of Agricultural Research, 1997; 75(4): 951-959. doi: 10.21608/ejar.1997.426114
PRELIMINARY STUDIES ON THE POPULATION OF LEGUME APHID, APHIS CRACCIVORA (KOCH.) AND JASSIDS, EMPOASCA SPP. ON DIFFERENT FABA BEAN VARIETIES AND BREEDING LINES UNDER THE FIELD CONDITIONS OF KAFR EL-SHEIKH GOVERNORATE, EGYPT.
1Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
2Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
Legume aphid, Aphis craccivora (Koch.) and jassids, Empoasca spp. are of the most important insect pests infesting faba bean. Field experiment was carried out at Sakha Agric. Res. Station, Kafr El-Sheikh Governorate, to study the population of these two insects on four varieties (Giza 402, Giza 3, Giza 461 and Reina Blanca) and two breeding lines (714 and 716/1039) of faba bean as influenced by temperature, relative humidity and wind speed during 1992/93 season. Weekly mean numbers of the two insects per 10 tillers revealed three abundance peaks for aphids on January 19, February 23 and March 23 and two peaks for jassids on February 12 and March 16 on all tested varieties and breeding lines. The highest infestation with aphids occurred on variety Giza 3 while breeding line 716/1039 and variety Reina Blanca were the least infested. Giza 402 significantly harboured the highest number of jassid population while breeding lines 714, 716/1039 and variety Reina Blanca had the least infestation. All tested varieties and breeding lines suffered higher numbers of aphids than jassids. The three considered weather factors namely: temperature, relative humidity and wind speed insignificantly affected aphid and jassid populations on all tested varieties and breeding lines except for wind speed on jassids infesting breeding line 716/1039 and variety Giza 461, where the effect was significant and highly significant, respectively. The combined effect of the three considered weather factors was more pronounced on jassids than on aphids for all tested varieties and breeding lines. Aphid population was more affected by the three weather factors collectively on variety Reina Bianca and breeding line 716/1039, while jassids were more influenced by these factors on Giza 461. Variety Reina Blanca and breeding line 716/1039 may be recommended for Sakha region, Kafr El-Sheikh Governorate.
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