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THE BIOLOGICAL PERFORMANCE OF SPINY BOLL WORM ON THREE NATURAL DIETS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 38, Issue 6, 2007, Pages 98-103 | ||
| Authors | ||
| Amal Salman Abdl-Razak; Abdul Sattar A.Ali; Ibrahim J. Al-Jboory | ||
| Abstract | ||
| Laboratory studies were initiated to investigate the influence of three natural diets on some biological aspects of Earias insulana Boisd. The experiments included determination of survival rate and duration and weight for larvae and pupae reared on each diet. Adults longevity and females fecundity were also calculated. Results showed that the high percentage of surviving larvae was 76 % when fed on fresh cotton bolls, while it was 48 % and 36 % when fed on okra fruits and cotton seeds diet. Pupal development was affected by the kind of diet. Results also indicated that female longevity and oviposition were increased for individuals originated from larvae fed on cotton bolls. Females originated from larvae fed on cotton bolls lived 45.2 days compared to 25.6 and 37.6 for individuals originated from larvae reared on germinated seeds and okra fruits .Average number of egg laid was 136 egg/ female, while females originated from larvae fed on cotton seeds and okra fruits diets laid an average number of 83 and 50 egg/ female respectively. Results of this study will add more information about the essential and behavioral requirements of biological performance of the spiny bollworm and its integrated management program. | ||
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