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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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Chitra N; Daryedon RP, Adults mm long, body reddish-brown with darker spots. Among these insect pests, the Caryedon serratus Olivier beetle is the most important and the rare insects capable to attack unshelled groundnuts [6] [7] [8] [9]. The groundnut pods were then divided into several collections of 10 pods with the same laying date.

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Journal of African Zoology, The study of biological parameters C. The results Table 2 indicate that eggs incubation period is 4. Four repetitions were followed with the seeds of each plant used.

Caaryedon stage 1, the larva spends on average. The pods are then isolated at a rate of one per flat-bottom tube and kept under observation in the rearing room. The results of pre-oviposition, oviposition and post-oviposition duration are presented on Table 3. On pods with three seeds, the rate of emergence was A total of eggs on pods with three seeds, eggs on pods with two seeds and eggs on pods with one seed are obtained.


Burkina Faso is one of the main groundnut producers in Africa, with a production oftons in Generate a print friendly version containing only the sections you need. Studies were carried out on the laying behavior of C. After the first generation, adults were taken and identified by genitalia male method to be sure it is really C.

The longest larval development durations were observed with B.

Caryedon serratus – Wikipedia

Results revealed that the average length of insects from the various types of pods varied from 5 to 7. The incubation period of eggs is similar to that reported by Robert [7] but it is the half of what was reported by Rama and Venugopal [13] who found an incubation time of 8 days.

Bulletin of Entomological Research, 49 2: Laboratory evaluation of the entomopathogenic fungus, Metarhizium anisopliae for the control of the groundnut bruchid Caryedon serratus on groundnut. During this period, eggs were laid, which account for In Sahelian countries in general and Burkina Faso in particular, groundnut is one of the most cultivated and consumed leguminous plant. Entomologia Experimentalis et Applicata, 52, Proceedings of Pakistan Congress of Zoology, vol.

Caryedon serratus

Annual Review of Entomology, 24, The genus Caryedon in Northern Nigeria, with descriptions of six new species Col. Seed Research, 35 1: Legume Research, 28, This caryeron permits species identification [12].


These results suggest that C. Please consider upgrading your browser to the latest version or installing a new browser.

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Caryedon serratus

Considering the aspect of the groundnut pods, the laying was possible preferentially on three-seeds pods. The varieties of groundnut developed for their resistance to peanut rosette virus were used for our work Table 1. These couples are isolated in Petri-dishes for 24 hours. CO;2 srratus 17 ] Dabire, C. Lambert Academic Publishing, pp.

Introduction In Sahelian countries in general and Burkina Faso cayedon particular, groundnut is one of the most cultivated and consumed leguminous plant. The newly hatched larva burrows straight through the eggshell and pod wall, and eats the kernel, feeding only within a single seed.

Different groundnut pods used during the experiments.

Journal of Applied Entomology Journal of Arid Environments, 51, Selection of Hosts by Ovipositing Insects.

One-seed groundnut pods had a 2. Notes on the biology and ecology of the groundnut seed beetle Caryedon serratus Ol. The final objective is to explain the infestation mechanisms of groundnut storages in farming areas.