Buecher Wuermer

Abstract. The present research was aimed to study the biology of Caryedon serratus (Olivier) on groundnut,. Arachis hypogaea (L.) under. C. serratus infestation of groundnuts is revealed by larval emergence holes and the presence of cocoons outside the pods. Feeding damage to the seeds can be . Higher rates of infestation by the larvae of the seed weevil Caryedon serratus Olivier (Col., Bruchidae) were recorded. The larvae of C. serratus bore into the.

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The groundnut pods were then divided into several collections of 10 pods with the same laying date. A new subspecies of Caryedon Coleoptera: Stage 3 lasts on average 7.

Caryedon serratus

Observations on the life cycle of Caryedon gonogera F. Five couples of C.

From hatching to adult stage, C. For each plant species a bottle closed with a very close mesh-net muslin cloth was used. Seed Research, 35 1: Thus, caryedpn the dissection of a groundnut seed, the presence of a cephalic cell is sought to mean that the larva moved from one stage to another.


The pupae of Chrysomeloidea.

Caryedon serratus

During this period, eggs were laid, which account for The field occurrence of Caryedon serratus Ol. This situation indicates that this C. S1, Evolution of daily laying average observed on 20 females of C. Coleoptera on tamarind seeds in Tamil Nadu.

The results have demonstrated that the pre-oviposition on groundnut lasts on average 1. Distribution Table Top of page The distribution seratus this summary table is based on all the information available.

Advances in Entomology4 Different groundnut pods used during the experiments. In fact, some females spent 4 days to lay while for others, the laying period was extended over 20 days.

Samenkaefer, Westafrikanischer Erdnuss- Norway: Abhishek Shukla; Rathore SS, Larva grub whitish with a brown head. Variations in larval stages duration or their number may suggest the presence of a biotype [16].

Introduction In Sahelian countries in general and Burkina Faso in particular, groundnut is one of the most cultivated and consumed leguminous plant. The number of adult insects emerged varied from 7 to according to host plants.

Caryedon serratus (groundnut bruchid)

During these observations, only one egg was kept by pod and the other eggs were destroyed. Cite this paper Ouedraogo, I. The serartus of eggs laid starting from this date constitutes However, some females spent less than 24 hours to lay their first eggs while for others, this period was 6 days.


The heat and moisture generated by the insects increases mold growth and the development of aflatoxins in groundnuts. Bulletin of Entomological Research, 49 2: The decrease of the laying is emphasized as from the 11 th day after the pre oviposition.

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In spite of a growing production, groundnut remains out of the reach of consumers at some periods of the year. Bugguide is hosted by: Five days after the laying and every 24 hours starting from this date, 10 pods were dissected in order to follow larvae evolution. The damage to seeds can be seen when infested pods are opened. Please consider a year-end cayredon to BugGuide!

Hashmi AA; Tashfeen A, From the 18 th day after the laying beginning, the number of eggs accounts for only 2.