| Titles |
|
English :
|
Effect of some Agricultural practices on the population density of four key Insect pests infesting Broad beanin
Sohag Governorate, Upper Egypt
|
|
Arabic :
|
تأثير بعض العمليات الزراعية على الكثافة العددية لأربع آفات حشرية رئيسية تصيب الفول البلدى بمحافظة سوهاج- مصر العليا
|
|
| Abstract |
Two field experiments were carried out at Shandaweel Agricultural Research Station, Sohag Governorate, Upper Egypt during 2004/2005 and 2005/2006 seasons to study the effect of some agricultural practices i.e., distance between rows (60, 70 and 80 cm), sowing on one or two ridges and distance between hills (20, 25 and 30 cm) on the infestation of broad bean with the leafminer, Liriomyza trifolii (Burgess), and also to study the effect of 4 sowing dates (15th Oct., 30 th Oct, 15 th Nov. and 30 th Nov.) on the infestation with the cowpea aphid, Aphis craccivora (Koch), the cotton whitefly, Bemisia tabaci (Genn.), jassids, Empoasca spp. and the leafminer, L. trifolii as well as the yield loss due to these insect pests.
The obtained data showed that distance between rows (80 cm), sowing on one side of the ridge and distance
between hills (30 cm), each alone recorded the lowest numbers of L trifolii larvae during both seasons. Also, interactions of distance between rows (80 cm), sowing on one side of the ridge and distance between hills (30, 25 and 20 cm), as well as distance between rows (80 cm), sowing on two sides of the ridges and distance between hiils (30 cm) also recorded the lowest densities of L. trifolii larvae during both seasons. The population density of A. craccivora and L. trifolii was signifïcantly affected by sowing date. Sowing broad bean on 15 th Oct. showed least infestation levels during both seasons. Highly significant positive correlation between total numbers of 4 insect pests and yield loss during 2004/2005 season (r = 0.981) and 2005/2006 season (r = 0.993) was observed. The highest yield loss (39.56 and 34.28%) was obtained in case of
sowing date 30 th Nov. during both seasons of study.
|
| Publication year |
2007
|
| Pages |
127-140
|
| Availability location |
معهد بحوث وقاية النباتات
|
| Availability number |
|
| Organization Name |
Plant Protection Research Institute (PPRI)
|
| City |
اسيوط
|
| serial title |
مجلة اسيوط للعلوم الزراعية
|
| Author(s) from ARC |
|
| Agris Categories |
Pests of plants
|
AGROVOC
TERMS |
Aphis craccivora.
Bemisia tabaci.
Empoasca.
Liriomyza trifolii.
|
| Publication Type |
Journal
|