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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Genetic variation in Heliothis in Australia: Therefore, the aim of the present study was to identify the relationship hyblafa the three apparent populations — endemic, epicenter and epidemic. Several technical advancements on the DNA fingerprinting methodologies have been established to resolve the taxonomic uncertainties and address the issue on species variability and migration [ 13 – 162021 ].

Simuliidae Biochem Biophys Res Commun. Hugh D Loxdale for his valuable suggestions on the manuscript of this paper. Distinct mitochondrial and nuclear DNA sequence divergence patterns for phylogenetic inference has been hyblaes among nymphalid butterflies [ 29 ]. The present study using RAGEP-PCR provides a tool for a logical continuation of the earlier work to trace the relationship of endemic, epicenter and epidemic populations of the hyblara defoliator.

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Fingerprinting genomes using PCR with arbitrary primers. National Center for Biotechnology InformationU. This class of markers are particularly important for less studied species, for which genome sequence information is generally not known. Similarly the epidemic samples were also collected from insects representing puega same life stages at the time of collection from each aggressive patch.

An absolutely specific virus with refractile polyhedral inclusion bodies, staining blue in Giemsa and thick blue in Buffalo Blackhyyblaea as Hyblaea puera nucleopolyhedrovirus HpNPV is found to be very effective in the biological control of this pest. Amplifications were performed in similar cycling conditions in a Thermocycler Biorad programmed as follows: Density-dependant polyphenism and baculovirus resistance in teack defoliator, Hyblaea puera Cramer.


We thank the Department of Biotechnology, Government of India for financial support. Blackwell hyblaeq, Oxford, U.

From then pkera until the next year, the population remains at the endemic level. The populations were classified into ‘endemic’, ‘epicenter’ and ‘epidemic’ populations based on the time of occurrence and size of infestation. Patterns of mitochondrial versus nuclear DNA sequence divergence among nymphalid butterflies: Published online Feb 2. The caterpillar feeds on teak and other species of trees common in the region, [1] considered as one of the major teak pests around the world.

Defoliation does puers kill teak trees, but it results in huge amount of timber loss.

Molecular identification of onchocerciasis vector sibling species in black flies Diptera: Intl J Ecol Environ Sci. Teak defoliator outbreaks are a regular annual feature in most hybkaea plantations in India and it is extremely difficult to predict the exact time and place of occurrence of these outbreaks. The teak defoliator is present year round in teak plantations, but in varying population densities.

Hyblaea puera – Wikipedia

Frequent assimilation of mitochondrial DNA by grasshopper nuclear genomes. Endemic samples were collected throughout that year based on their stray occurrences in various life stages, whilst epicenter samples from each aggregated patch were collected only from the insects that attained the same stage of its life cycle at the time of collection in that patch. The teak moth, in Indonesia known as entung jati, is commonly eaten in the regions where they thrive.

The degree of variability observed for RAGEPs also argues that this technique could be useful for a variety of questions, including individual identification, strain identification and phylogenetic analysis. In each marker, the average number of bands scored varied from 7— Using the duration of each instar egg — one day; 1 st and 2 nd instars — two days each, 3 rd to 5 th instars — three days each; pre-pupa — one day and pupa — four daysthe temporal data on outbreaks were examined to see whether each subsequent epidemic could be explained on the basis of a previous outbreak.


Hyblaea puera Scientific classification Kingdom: The molecular weight of each band was estimated by comparing with a co-migrating bp ladder Amersham. It is expected that the molecular data would provide the necessary information to elucidate the origin of the epidemic population. We were therefore interested in investigating the temporal and spatial relationship among various population groups in Nilambur, Kerala India and address the cause of outbreak at the landscape level.

The maximum number of bands was detected using primer cytC-B-3′, while the maximum number of monomorphic bands were detected using primer EFS The present study found little evidence to show that the aggregation of moths belonging to the endemic populations cause the epicenter populations.

The ECVs which are the progenies released into the haemocoel from the midgut cells are more infectious than the PIBs and mediate disease spread within the insect body.

Larvae hatch in about two days. The teak defoliator, Hyblaea puera: Species specificity was evaluated by comparing the banding patterns in H. A synnematous fungus of the genus Hirsutella is found to be pathogenic to this pest.

Every year high-intensity outbreaks of teak defoliator occur immediately after the premonsoon yyblaea in late February or early march in Kerala. Retrieved from ” https: Normalization ;uera us to control the brightness and streakiness of bands without altering the lighter bands and also control the inter-gel mobility shifts.

Such information should prove valuable in planning and implementing measures to control these pests. It is probably an adaptive trait acquired by the species for surviving in the hostile mangrove environment, since the pupation is not possible in the muddy and inundated soils of mangroves. From this dendrogram, it may be deduced that all the seven epidemic population samples tested in the study shared the same gene pool with sets of epicenter populations.