Evaluation of some advanced garlic lines against premature. In this study, we present a new approach to track multiple insects especially the opisina arenosella larva which is elastomeric in nature. Evaluation of artifical diets for coconut blackheaded caterpillar, opisina arenosella walker pdf. Human resource development has helped to sensitize extension functionaries and farmers about the usefulness of ipm.
Insect pests of economic significance affecting major crops of the countries in asia and the pacific region. Discrete generation cycles in the tropical moth opisina arenosella. Crytophasidae is an endemic, frequently outbreaking pest of coconut in india and sri lanka. Interdisciplinary study with colleagues at institute of wood science and technology, bangalore page 2 of 2 conference proceedings 8. For studying effect of neuropeptides on digestive enzyme release, empty midgut tubes of larvae of opisina arenosella ligated at both ends with hair were incubated with leucokinins lk iviii, lk analogues and leucopyrokinin lpk in a bioassay apparatus. The potential of insect pheromones to attract natural enemies has mainly been established under laboratory conditions, while. A brand is a persons gut feeling about a product, service, or organization. Responses of corcyra cephalonica stainton to pirimiphosmethyl, spinosad, and combinations of pirimiphosmethyl and synergized pyrethrins. Oecophoridae in the indian subcontinent may occur in november to may each year in the same or adjoining areas of plantations. Inhibition of digestive enzyme release by neuropeptides in. Distinct compartments and cell types of the midgut tissue carry out specific functions and vector. Upregulation of human myoinositol oxygenase by hyperosmotic stress in renal proximal tubular epithelial cells.
Pdf biological suppression of coconut black headed caterpillar. Pdf volatile organic compounds in healthy and opisina. Indian treepie dendrocitta vagabunda parvula latham, 1790. Jagadish and others published biology of rice moth, corcyra cephalonica stainton on foxtail millet. Products and processes in agriculture are increasingly becoming linked to science and cutting edge technology, to enable the engineering of what are in effect. Leaf eatingblack headed caterpillar opisina arenosella symptoms the caterpillar feeds on green matter from the lower leaf surface, remaining within galleries of silk and frass. Land areas with rocks, clayey soils, and waterlogged areas should not be used. Pdf biological control of coconut black headed caterpillar. Change detection studies in coastal for this purpose, available cloudfree. Opisina arenosella, and drilled by coconut rhinoceros beetles oryctes rhinoceros. Biological control agents and semiochemicals have become essential parts of the integrated pest management of insect pests over recent years, as the incorporation of semiochemicals with natural enemies and entomopathogenic microbials has gained significance.
The periodicity of adult emergence, calling, courtship, mating and oviposition behaviour of opisina arenosella walker lepidoptera. The coconut plants were selected free from any pesticide application. Direct and indirect influences of intercrops on the coconut defoliator. On some hyperparasites of opisina arenosella 31 acknowledgements the authors are thankful to prof. Award presentations chemical ecology with a cast of thousands and recognition of one walter s. Area and production in india year area 000 ha production 000 mt productivity kgha 20092010 1895. Since female mosquitoes weighing 2 mg take about 5 mg of blood, it is very likely that the large blood meal causes a temporary osmotic imbalance in the gut signaling the release of peptide hormones from the gut endocrine cells. Oecophoridae infested leaves of coconut palms article pdf. Coconut palm cocos nucifera infestation by opisina arenosella lepidoptera. Cultivation land preparation the selected land should be completely cleared ensuring minimal disturbance of the topsoil layer. Its only species, opisina arenosella, the coconut blackheaded caterpillar, was described by the same author in the same year.
Joseph, head of the department of zoology for the facilities provided thanks are also due to dr. The midgut of the female anopheles mosquito is responsible for the digestion of the blood meal and is the entry point and site of extensive interaction with diseasecausing pathogens. It is found in india, sri lanka, bangladesh and myanmar the wingspan is 1015 mm. Leucokinins are a group of structurally related neuropeptides stimulating gut motility and fluid secretion by malpighian tubule in insects. Plant based biotechnology has come to represent a means of mitigating the problems of global food security in the twenty first century. Its a gut feeling, because people are emotional, intuitive beings. The leaf eating black headed caterpillar opisina arenosella is a serious pest of coconut palm causing significant yield loss in all the coconut growing tracts of. Molecular genetic markers reveal differences between genotypes according to the presence of alleles the same or different at target loci. Development of a variable rate chemical sprayer for.
New host records of brachymeria nosatoi habu, the pupal parasitoid of opisina arenosella walk. During other periods, pests andor parasitoids could be maintained on intercrops that are. The treatment consisting release of parasitoids on palms and compared with untreated plots. Four commercial preparations on opisina arenosella. Oecophoridae in the indian subcontinent may occur in. Blackheaded caterpillar, opisina arenosella walker lepidoptera. A male mitotic metaphase consisting of 2n 60 elements. Integrating biopesticides in pest management strategies. Automated motion tracking of insects using invariant. Initial field observation and pretreatment sampling revealed that 8090 % coconut plants were affected by opisina arenosella. A drupe is a fruit with a hard stony covering enclosing the seed like a peach or olive and comes from the word drupa meaning overripe olive. Synonym nephantis serinopa, ophisina arenosella, opisina serinopa. Effect of four commercial preparations of bacillus.
This study demonstrates the use of image processing techniques for segmenting insects, a detailed procedure for separating the head and tail sections from the larva trunk to minimize the errors due to deformation, invariant moment features to establish. The attack will be severe during summer months from januarymay. Opisina is a monotypic moth in the family xyloryctidae described by francis walker in 1864. A brand is not a logo, not an identity, not a product. The receptor was detected as a 75 kda protein band in all membrane preparations with an anti. These problems result in the decrease in coconut production quantity and severe economic damage to coconut plantations.
Development of microsatellite markers and detection of. Opisina arenosella larvae feed on the vascular tissues of coconut fronds by chewing, leading to affected leaves showing a burnt appearance, and also construct protective tunnels and galleries with silk, leaf parts, and frass mohan et al. Direct and indirect influences of intercrops on the. Chemical pesticides account for onethird to onehalf of the total mean material input cost for vegetable production in the region. The midgut of the female malaria vector mosquito anopheles gambiae is a major site of interactions between the parasite and the vector. Pdf discrete generation cycles in the tropical moth opisina.
Respiration a process of interchange of gases between environment and the blood or cellular tissues of organisms. Pdf direct and indirect influences of intercrops on the. Though ipm approach has been taken up since 1981, its impact has not been felt until 1994. In vitro release of digestive enzymes by fmrf amide related neuropeptides and analogues in the lepidopteran insect opisina arenosella walk. Factors influencing the simulated itcz structure in varying model resolutions and dynamical cores. The midgut of hematophagous insects, such as disease transmitting mosquitoes, carries out a variety of essential functions that mostly relate to blood feeding. The coconut black headed caterpillar opisina arenosella, is a species of moth found in. Compacted soils should be ploughed and stumps removed to provide adequate drainage. Coconut black headed caterpillar opisina arenosella in. The knowledge on biology and behaviour are prerequisites for semiochemical based pest management. Extensive and inappropriate pesticide use has led to pests developing. Lc jo is the concentration at which 50% mortality was. View pdf cite save natural occurrence of biocontrol agents of opisina arenosella walker on coconut.
Spatial and sexspecific dissection of the anopheles. The leafeating caterpillar, opisina arenosella walker, is the most destructive pest of coconut palm in india and southeast asia. Life table analysis under constant temperature for opisina. Biocontrol potential and its exploitation in sustainable. Microsatellite markers are especially useful codominant markers that have been used in a wide range of studies to elucidate the population structure and dynamics of a range of organisms, including agriculturally beneficial insects such as parasitic. The biology of corcyra cephalonica stainton was studied under controlled conditions in the laboratory.
Adults are grey the larvae are gregarious and are serious pests of coconut trees. In lepidoptera sexual, oviposition and adult emergence behaviour follows a specific periodicity and is limited to either the day or the night. The coconut black headed caterpillar opisina arenosella, is a species of moth. Pdf biological control of opisina arenosella walker lepidoptera. Adult beetle is stout, brownish black or black and has a long horn projecting dorsally from. Mutual interference reduces offspring production in a.
Impact of innundative releases of bio agents in the. Millions of people depend on this crop by employed in various coconutbased industries like coconut oil, dry coconut powder, tender coconut, coir, coconut cake, etc. The field borders should be established along with fence lines. B female mitotic metaphase consisting of 2n 60 chromosomes.
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