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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Journal of Stored Products Research, 26, Storing groundnuts in jute bags greatly restricts the movement of adults into and out of bags.

Biochemical Systematics and Ecology, 15, Three families of host plants Papilionaceae; Caesalpiniaceae and Mimosaceae were selected for females C. In the case of the groundnut beetle, it can be supposed that females laying respects conditions observed in cowpea beetle case. S1, Distribution Maps Serratjs of page You can pan and zoom the map.

Bruchidae on stored groundnut and tamarind in Yola. The morphometric of adult C.

These pods are observed till the appearance of C. Larva grub whitish with a brown head.

When emerging, insects were measured according to the various types of pods by serdatus an ocular micrometer with a binocular microscope. A total of eggs on pods with three seeds, eggs on pods with two seeds and eggs on pods with one seed are obtained. These couples are daily exposed to a groundnut pod.


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Biology of the Bruchidae. Table 3 indicates that females spend on average 1. Don’t need the entire report? Plant pests of quarantine importance to the Caribbean.

Notes on the biology and ecology of the groundnut seed beetle Caryedon serratus Ol. The distribution in this summary table is based on all the information available. This paradox is justified by multiple constraints related not only to production, like lack of well-structured commercial channels, but also to issues related to the storage of this crop. The pods are then isolated at a rate of one per flat-bottom tube and kept under observation in the rearing room.

The rate of eggs laid starting from this date constitutes One-seed groundnut cqryedon had a 2. An annotated record of Coleoptera, Lepidoptera, Hemiptera and Hymentoptera associated with stored produce in Jamaica. Infestations cause reductions in food value, in the quality of the oil and in reduced seed germination.

The newly hatched larva burrows straight through the eggshell and pod wall, and eats the kernel, feeding only within a single seed. The Table 3 showed that females laying lasted on average Environmental Entomology, serratis, The importance of the damage caused by this pest during storage explains why the scientific researches devoted to it [10]. After the first generation, adults were taken and identified by genitalia male method to be sure it is really C.


Caryedon serratus

Curculionidae from Plantains in Puerto Rico. The study of biological parameters C. Such damage is particularly significant when the peanuts are destined for confectionery purposes. Incidence of bruchid, Caryedon serratus Olivier on groundnut in Jaipur, Rajasthan. The field occurrence of Caryedon serratus Ol. Similarly, the laying on the pods with two seeds is more important than those obtained on pods with one seed. Journal of African Zoology, Adults mm long, body reddish-brown with darker spots.

The varieties of groundnut developed for their resistance to peanut rosette virus were used for our work Table 1.

Caryedon serratus (groundnut bruchid)

Then the micrometric value was determined:. The daily laying of the females showed an important variability during the oviposition period. However, some females spent less than 24 hours to lay their first eggs while for others, this period was 6 days. Regardless of host plants, females outweigh males at emergence.

The results of pre-oviposition, oviposition and post-oviposition duration are presented on Table 3. During this period, eggs were laid, which account for Please consider upgrading your browser to the latest version or installing a new browser. AE Most popular papers.