| Titles |
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English :
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Seasonal abundance of cereal aphids
and ladybird beetle, Coccinella undecimpunctata (L.) on four cereal crops in south Egypt.
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Arabic :
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الوفرة العددية الموسمية لحشرات منّ النجيليات وحشرات أبو العيد ذو الاحدى عشر نقطة على أربعة محاصيل حبوب فى جنوب مصر
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| Abstract |
Field experiments were conducted at Shandaweel Agric. Res. Station, Sohag, A.R.C, during 2004 and 2005 seasons for wheat and barley, whereas for sorghum and maize during 2003 and 2004 seasons.
Results showed that wheat plants were infested with the oat aphid, Rhopalosiphum padi (L.), the greenbug, Schizaphis graminum (Rond.), the corn leaf aphid, Rhopalosiphum maidis (Fitch) and the English grain aphid, Sitobion avenae (Fab.). R. padi. started to appear earlier than S. graminum, R. maidis and S. avenae, respectively. The peak of these aphids occurred on 26-27 March and it was in harmony with the highest numbers of C. undecimpunctata during the two studied seasons. Barley plants was infested with R. maidis on the fírst week of February during two seasons. The peak of the aphid occurred from the end of February to the fïrst week of March during two seasons, and it was in accordance with highest numbers of C. undecimpunctata. As for the sorghum plants, R. maidis started to appear earlier than S. graminum. R. maidis started to appear on the 2nd and 3rd of July during 2003 and 2004 seasons, respectively. S. Graminum reached its maximum number at the first week of September and the last week of August during 2003 and 2004 seasons, respectively. While, the corn leaf aphid reached its peak on the last week of August during the two seasons and it was nearly in accordance with the highest numbers of C. undecimpunctata. Concerning the corn plants, it was only infested with the com leaf aphid, R. maidis. This pest start to infest corn plants on the first week of August in 2003 and 2004 seasons. However, its peak was observed on the first week of September during 2003 and 2004 seasons and it was in coincidence with the high numbers of the ladybird beetle, C. Undecimpunctata.
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| Publication year |
2005
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| Pages |
205-215
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| Availability location |
معهد بحوث وقاية النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
اسيوط
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| serial title |
مجلة اسيوط للعلوم الزراعية
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| Author(s) from ARC |
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| Agris Categories |
Pests of plants
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AGROVOC
TERMS |
Cereals.
Coccinella.
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| Publication Type |
Journal
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