Population dynamics of teak defoliator, Hyblaea puera Cram. (Lep., Hyblaeidae) in teak plantations of Bangladesh, Journal of Applied Entomology, Volume Abstract. Hyblaea puera Cramer (Lepidoptera: Hyblaeidae) was reported in commercial teak (Tectona grandis L. f.) plantations in the states of Campeche and. Hyblaea puera Cramer (Lepidoptera: Hyblaeidae) was reported in commercial teak (Tectona grandis L. f.) plantations in the states of.
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Hbylaea identification of onchocerciasis vector sibling species in black flies Diptera: Eur J of Entomology. The larval samples that were geographically close and had a difference of one complete life cycle stage between the population groups were subjected to molecular studies to evaluate their relatedness.
Subsequently a data matrix of similarity values was produced for each individual for each marker. The species has also been recently reported to be present in Central America puer Africa.
The maximum numbers of bands detected was found using primer SR-J, the minimum hyblaaea using marker N4-N The present study found little evidence to show that the aggregation of moths belonging to the endemic populations cause the epicenter populations. The Teak defoliator Hyblaea puera is a pest moth of teak hyblae in India and other tropical regions e. Longer mitochondrial 19—26 nucleotide gene encoding primers are likely to increase the reproducibility and specificity when compared to RAPD technique.
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Such information should prove valuable in planning and implementing measures to control these pests. The teak defoliator is present year round in teak plantations, but in varying population densities. Males and females emerge more or less simultaneously and mating takes place within a couple of days.
Clarendon Press, Oxford; A rapid spread of infection in the insect body leads immediately to cessation of feeding and later on, to death. Dispersal ecology pp24—49, British ecological Symposium, 3—5, Under the optimal conditions, the larval period lasts 10—12 days. Pupation may some times occur within green leaves of other plants in the under growth, folded or juxtaposed with silk.
Views Read Edit View history. Fingerprinting genomes using PCR with arbitrary primers. The bands scored for each nuclear RAGEP used in the present study were of a size range bp to bp. Retrieved 8 August The UPGMA dendrogram prevails on the assumption that nucleotide substitution rates are same across all branches.
Hyblaea puera – Wikipedia
Populations were classified as ‘endemic’, ‘epicenter’ and ‘epidemic’, based on their time of occurrence and the density of the population as represented by the area it infests.
Teak defoliator outbreaks are a regular annual feature in teak plantations in Kerala, India. National Center for Biotechnology InformationHybblaea.
RAGEP markers were first tested for polymorphisms, species-specificity and repeatability. While evaluating the genetic structure in introduced population of the fire ant, Solenopsis invicta Buren using different classes of markers, it was confirmed that both mitochondrial and nuclear markers display the same hierarchical structure [ 28 ].
Randomness of genome amplification methods have been efficiently used in constructing the phylogenetic history in the weevil, Aubeonymus mariafranciscae Roudierwhich had diverged recently [ 5 ], whilst the origin of the Argentine stem weevil, Listronotus bonariensis Kuschel in New Zealand, was traced to the eastern coast of South America [ 30 ].
DNA extraction was performed with a minor modification of isolation and purification protocol as described earlier [ 37 ] being extracted from whole larvae and quantified spectrophotometrically using a spectrophotometer at nm Shimadzu.
This appears to be a more practical and economical approach for teak defoliator management when compared with management of the pest in the total plantation area covering thousands of hectares. Hyblaea puera Cramer Lepidoptera: Thailand and is of major economic significance.
This suggests that all the epidemic insects, which are spatially distinct, but temporally co-occurring, share the same gene pool. Use of genetic diversity in movement studies of flying insects. The NPV which enters the insect gut, lyses in the alkaline environment of the midgut, releasing virions.