USING TRICHOGRAMMA EVANESCENS AS BIOCONTROL AGENT AGAINST ALMOND MOTH, EPHESTIA CAUTELLA (WALKER) EGGS IN STORED DATES | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 5, Volume 90, Issue 4, December 2012, Page 1445-1451 PDF (298.5 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.2012.163496 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| SANAA M. MAHGOUB; HASSAN B. HUSSAIN; MAHROS E. NASR | ||||
| Department of Stored Grains Insect Research, Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| The ability of the parasite, Trichogramma evanescens (Westw) for suppression of almond moth eggs of Ephestia cautella (Walk.) at three release rates and different depths of stored dates (edible fruits) under laboratory conditions was tested. The results indicated that percent parasitism was greater at all depths when approximately 300 T. evanescens wasps were released compared to release of only 100 T. evanescens. Meanwhile, parasitism rate was high (78.66 %) at date surface and this value decreased to 52.33, 25.66, 23.0 and 16.33 % at 5, 10, 15 and 20 cm depths, respectively, when used 200 host eggs of E. cautella. The results showed also on adverse relationship between host eggs depth and the rate of parasitism. Additionally, the highest release rate of the parasite was the most effective against the eggs of E cautella at All depths. These results indicated clearly the possibility of using the parasite T. evanescens for suppression of E. cautella - population in stored dates. | ||||
| Keywords | ||||
| T. evanescens; E. cautella; biocontrol; depths; stored dates | ||||
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