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PARASITISM EFFICACY OF Bracon hebetor SAY ON BOTH FIG MOTH Ephestia cautella (Walk.) AND SPINY BOLLWORM Eraias insulana (Boisd.) LARVAE | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 3, 2009, Pages 0-0 | ||
| Authors | ||
| A. A. Hameed; A. K. AL-Zubaidy; A. A. AL-Taweel | ||
| Abstract | ||
| Bracon hebetor Say is an important ectoparasitoid of many lepidopterous larvae particularly those of the fig moth Ephestia cautella in dry date stores and the spiny bollworm Eraias insulana in the field. Laboratory studies revealed that the parasitism and paralyzation percentages of both host larvae were different, which being 83.7 and 93.3% for E. cautella in normal and opened dry dates while 15.3 and 45.6% for Eraias insulana in normal and opened cotton bolls respectively. A trial for mass rearing and releasing this parasitoid for the purpose of controlling the spiny bollworm in cotton fields was undertaken at two different regions (Baghdad and Diala). Filed survey revealed that the parasitoid was responsible in the reduction of 50% of infestation rate at the two localities which being 2.9 and 2.5% for the treatments while 6.1 and 4.8% for the control respectively. | ||
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