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Asian Research Journal of Agriculture, 2456-561X,Vol.: 10, Issue.: 2

Original-research-article

Developmental Stages of African Sweetpotato Weevil Cylas puncticollis Boheman (Coleoptera: Brentidae) in Sudan

 

Amin ELzubeir1*, EL-Imam EL-Khidir2 and Kamal Mowafi2

1Department of Plant Protection and Environmental Studies, Faculty of Agriculture, Alzaiem Alazhari University, Sudan.

2Department of Crop Protection, Faculty of Agriculture, University of Khartoum, Shambat, Sudan.

Article Information

Editor(s):

(1) Dr. Rusu Teodor, Department of Technical and Soil Sciences, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca,Romania.

Reviewers:

(1) Aba-Toumnou Lucie, University of Bangui, Central African Republic.

(2) Paul Kweku Tandoh, Kwame Nkrumah University of Science and Technology, Ghana.

Complete Peer review History: http://www.sciencedomain.org/review-history/27976

Abstracts

The biology of the developmental stages of the weevil, Cylas puncticollis Boheman a pest of sweet potato roots was carried out under laboratory conditions at ambient room condition and relative humidity (RH) and at a constant temperature of 30°C and 65% RH. Average pre-oviposition period under ambient room conditions was 4.33 ± 1.23 days. The incubation period lasted 2-4 and 3 days under room conditions and the constant temperature and RH, respectively. The larval period lasted 9.63-12.00 and 12.56-14.57 days under room conditions and the constant temperature and RH, respectively. The pupal period ranged from 3.0 to 3.29 days under room conditions and from 3.4 to 4.0 days under the constant temperature and RH. The sex ratio was 1:0.9. The pre-oviposition rate was 3.90 ± 1.67 eggs per female per day under room ambient conditions and under a constant temperature of 30°C and 65% RH a highly significant difference was recorded on the total developmental stages duration; also a significant difference was registered between rearing under room ambient conditions and the constant temperature and RH conditions.

Keywords :

Cylas puncticollis; weevil; biology; life cycle; developmental stages.

Full Article - PDF    Page 1-6

DOI : 10.9734/ARJA/2018/45767

Review History    Comments

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