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.
|Published (Last):||12 January 2013|
|PDF File Size:||4.53 Mb|
|ePub File Size:||20.41 Mb|
|Price:||Free* [*Free Regsitration Required]|
Adult beetles measurement was also taken on the emerged insects from non-cultivated plants seeds; results are recorded on the Table 8. One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using.
Five couples of C. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. Biochemical Systematics and Ecology, 15, Please consider a year-end gift to BugGuide!
The groundnut seed beetle, a study of its identity and serartus position. In fact, some females spent 4 days to lay while for others, the laying period was extended over 20 days. Females showed a period of relatively short pre oviposition, and 24 hours after their emergence spawning activity begins. The statistical analyses do not emphasize any significant difference between males serartus females lifespan. Samenkaefer, Westafrikanischer Erdnuss- Norway: Seed Research, 35 1: The number of eggs laid by female varied from 2 to eggs in relation to the female lifespan.
The incubation period of eggs is similar to that reported by Robert  but it is the half of what was reported by Rama and Venugopal  who found an incubation time of 8 days. The damage to seeds can be seen when infested pods are opened.
During these observations, only one egg was kept by pod and the other eggs were destroyed. Our results indicate that larval stage duration varies from one stage to another; which was not the case with the results reported by some authors who found a 4 days average duration for the first three larval stages .
Generate a print friendly version containing only the sections you need. The pods cqryedon then isolated at a rate of one per flat-bottom tube and kept under observation in the rearing room.
There was a problem providing the content you requested
Insect Environment, 7 1: Infestations cause reductions in food value, in the quality of the oil and in reduced seed germination.
The results of pre-oviposition, oviposition and post-oviposition duration are presented on Table 3.
In spite of a growing production, groundnut remains out of the reach of consumers at some periods of the year. Journal of Arid Environments, 51, The plant materials used were from several host plants families. Chitra and Soundararajan, Plant Material The varieties of groundnut developed for their resistance to peanut rosette virus seratus used for our work Table 1.
Studies were carried out on the laying behavior of C. Incidence of bruchid, Caryedon serratus Olivier on groundnut in Jaipur, Rajasthan.
Curculionidae under Constant Temperature. These pods are observed till the appearance of C.
Seeratus on the biology and ecology of the groundnut seed beetle Caryedon serratus Ol. In the case of the groundnut beetle, it can be supposed that females laying respects conditions observed in cowpea beetle case. The heat and moisture generated by the insects increases mold growth and the development of aflatoxins in groundnuts.
Caryedon serratus (groundnut bruchid)
Abhishek and Rathore, Biology of the Bruchidae. Contributors own the copyright to and are solely responsible for contributed content. The analysis of Figure 2 indicates that the laying duration can be divided into four periods. Hashmi AA; Tashfeen A, Selection of Hosts by Ovipositing Insects. S1, As for adults lifespan, males live longer The varieties of groundnut developed for their resistance to peanut rosette virus were used for our work Table 1. Several parasitoids attack the pest in Acacia pods, including the pteromalid Anisopteromalus calandrae Howard.
At stage 1, the larva spends on average.