Integrated management of cereal stem borers and striga weed in maizebased cropping systems in africa z. Sawbo scientific animations without borders 2,238 views 5. Careful examination will uncover yellow brown excrement pushed out through holes in the side of the stem at the point of wilting. Photodegradation of emamectin benzoate and its influence. Among different stem borer species in bangladesh, yellow stem borer ysb is reported to be the most abundant, comprising approximately 70% of borers rahaman et al. Integrated management of rice stem borers in the yangtze delta. Rajendra kasturi through sex pheromone trap pooled mean of kharif, 2010 and kharif, 2011. This is the first report of the control of major rice pests using this specific bt gene. The female moth has a distinct black spot at the centre of fore wings. Jun 01, 2014 in tccj, 024h striped stem borer eggs were parasitized at 77%, and eggs up to 72 h were parasitized at. Cerambycidae by doug johnson, extension entomologist university of kentucky college of agriculture. Economic impact it is very difficult to quantify the economic impact of rice stem borers including s. To control the stem borer the fallowing measure may be taken.
Khan international centre for insect physiology and ecology icipe maize is the most important cereal crop, which serve as staple food for millions in subsaharan africa. Yellow stem borer appears to be well adapted to the aquatic environment of deepwater rice and is reported to cause an annual average yield loss of about 1720% in bangladesh and thailand catling et al. At atl release egg parasitoid, trichogramma japonicum for the management of the rice yellow stem borer spraying neem seed kernel extract controls stem borer clip the seedling tips before transplanting to eliminate egg masses and collect and destroy the egg masses in main field. Management of rice yellow stem borer, scirpophaga incertulas. May 22, 2015 climatesmart pushpull system for stem borer management in maize in english accent from usa duration. If the stem is split open, one to several borers are usually present. Microbial diversity of a rice yellow stem borer gut consortium. In the other trichogramma strains, parasitism rates on striped stem borer eggs were generally breeding. The pink borer sesamia inferens walker lays spherical, yellowish white eggs in batches of 30100 eggs in two to three parallel lines on the leaf sheaths or the leaf surface. Caterpillars bore central shoot of seedlings and tillers leading to death of central shoot called dead heart. The pink borer larvae are distinctly pink in color, while the chilo larvae are creamy in color with dark spots kishore, 1996b. In this study we validate the field efficacy of rice husk ash rha and imidazole, alone and in combination, against damage by yellow stem borer ysb under field conditions for two seasons in five rice cultivars. Regulating planting date when rice was planted only once per year, regulating the planting date was a commonly used.
Efficacy of insecticides against the rice stemborer, chilo. Generation of markerfree bt transgenic indica rice and. Mining the biomass deconstructing capabilities of rice yellow. Molecular marker association for yellow stem borer resistance. Studies on the ecology of the yellow stem borer, scirpophaga. These egg masses are to be collected from the field and destroyed them. Aug 30, 20 diversity and functional significance of cellulolytic microbes living in termite, pillbug and stemborer guts. They attach themselves to the tiller and bore into the stem. Lepidoptera the pest is widely distributed in all asian countries, monophagous and is a major pest on rice in india. Pest borer control stop boring larvae from damaging your plants. It is the most abundant stem borer in tropical lowland rice anddeepwater rice and is a damaging pest as it. Pdf studies on the ecology of the yellow stem borer. Photodegradation of emamectin benzoate and its influence on. Look for dark or discolored areas with sap and sawdustlike residue on or around host plants.
Five species of stem borers attack rice crop from which the yellow stem borer ysb, scirpophaga incertulas is dominant. Specificity of systemically released rice stem volatiles on. Yield performance of different insecticides against rice. Effectiveness of practiced management option to control rice. Yellowish egg mass of the stem borer can be seen on the leaf of the paddy plant. Pdf onfarm evaluation of integrated management of rice. Yellow stem borer by mureed abbasscirpophaga incertulas. The white stem borer has become less important in australia since the introduction of direct seeding. Nazmul huda 1, prosanta kumar dash 1 1agrotechnology. These induce attractant activity and cause arrestment responses and ovipositional stimulation in its egg parasitoid, trichogramma japonicum ashmead. Soil application of silicon reduces yellow stem borer. Globally, yellow stem borer alone causes yield losses of 10 million tones and accounts 50% of all insecticides used in the rice field 6.
Climatesmart pushpull system for stem borer management in maize in english accent from usa duration. Pdf environmental effect on yellow stem borer, scirpophaga. Integrated management of cereal stem borers and striga. Family pyralidae genus scirpophaga tryporyza species incertulas distribution. Studies on the ecology of the yellow stem borer, scirpophaga incertulas walker pyralidae, in deepwater rice in bangladesh. In tccj, 024h striped stem borer eggs were parasitized at 77%, and eggs up to 72 h were parasitized at. Management of rice yellow stem borer scirpophaga incertulas in rice cv. Rice yellow stem borer ysb larvae were collected from paddy fields and the larvae gut dissected to facilitate the collection of the gut fluid.
Evaluation of different insecticides and botanical extracts against yellow stem borer, scirpophaga incertulas in rice field md. The rice stem borer, which infest the rice from seedling to maturity, act as a major constraint. Since pesticide application is the major management tactic in china, judicious timing of a minimal dose of insecticides is important in developing an ipm program for that pest. Most stem borers belong to the families pyralidae and noctuidae, and the immature insects, the caterpillars, tunneling in the stems and feeding on the soft tissues, cause the injury. To study the impact of environmental factors on yellow stem borer ysb and rice leaf folder rlf on rice. The effect of soil application of rice husk ash rha, a cheap renewable source of silicon, and imidazole a silicon solubilizer and carrier on yellow stem borer ysb, scirpophaga incertulas walker, and its damage to rice plants were investigated. A study on the influence of different weather parameters on fluctuations of. Integrated management of cereal stem borers and striga weed. Population fluctuation of rice yellow stem borer adult scirpophaga incertulas in relation to abiotic parameters pooled mean of kharif, 2010 and kharif, 2011. Other stem borers on rice include dark headed borer,chilo suppressalis. The adult moth is slender, straw coloured with a pointed head. Sawdust like frass near the base of the plant is the best evidence of squash vine borer activity. Borer chemical control trunk insecticides emulsifiable concentrate formulation long lasting pyrethroids, bifenthrin onyx, permethrin astro systemic insecticides imidacloprid kills beetle borers only does not kill caterpillar borers wont work if vascular system is damaged. The yellow stem borer, scirpophaga incertulas walker ysb, infested rice plants emit chemicals through the surface of their infested stems.
Population dynamics and management of yellow stem borer. Effective control of yellow stem borer and rice leaf folder. More control information on specific species of borers like european corn borers, iris borers and squash vine borers can be found below. African striped borer has been reported in nigeria 12 and up to 100% due to yellow stem borers have been reported in kenya, a neighbouring country with the same climatic condition like tanzania. Assessment of infestation and yield loss by stem borers on variety. It is found in aquatic environments where there is continuous flooding.
Yellow stem borer was carried in purulia, west bengal. Feeding the vascular tissues interruption of nutrient and water transport on the tissue. Rice disorders cabi pest and disease photoguide to. Yellow stem borer ysb resistance is governed by polygenes. Systematic position phylum arthropoda advertisements. Abstract the rice striped stem borer chilo suppressalis walker, the yellow stem borer. The objectives of this study were to evaluate the performance of two organic pesticides to control rice yellow stem borer. Symptoms of damage grub tunnels in the sapwood on the trunk or branches grub bore into the sap wood and macking irregular tunnels. Dectes stem borer aka soybean stem borer in kentucky grown. We focused on identifying molecular markers associated with ysb resistance. Scirpophaga incertulas, the yellow stem borer or rice yellow stem borer, is a species of moth of the family crambidae. The dectes or soybean stem borer is a small, longhorned beetle that attacks soybeans. Crambidae, is an important pest of rice, oryza sativa l. Rice husk ash and imidazole application enhances silicon.
Yellow stem borer is notorious pest of rice slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Efficacy of selected biopesticides and botanical extracts in. Printable pdf click on images to see larger view stem borers in the genus oberea are an eastern united states pest of blueberries, blackberries, huckleberries, azalea, rhododendron, and laurel. May 25, 2012 yellow stem borer is notorious pest of rice slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Onfarm evaluation of integrated management of rice yellow stem borer scirpophaga incertulas walk. Eggs are yellow and flat, laid singly or in pairs on young leaves. Pdf crop loss estimation of yellow stem borer scirpophaga. A stemborer stem borer is any insect larva, or arthropod, that bores into plant stems. Rice stem borer yellow stem borer scirpophaga incertulas pyralidae. Yellow stem borer how is yellow stem borer abbreviated.
Ysb is also considered as a major pest in other parts of asia torii, 1971. Larvae of stem borer may remain inside the stubbles of the. The insecticides and botanicals reduced the infestation of yellow stem borer ysb, scirpophaga incertulus and thereby significantly influenced the yield performance of rice. Yellow stem borer scirpophaga incertulas, pink stem borer sesamia. The transgenicindica rice harbours a translational fusion of 2 differentbacillus thuringiensis bt genes, namelycry1b1aa, driven by. Scirpophaga incertulas walker, and the pink stem borer sesamia. Stem borers stem borers are major pests of rice during both kharif and summer seasons. We report on generation of markerfree clean dna transgenic rice oryza sativa, carrying minimal geneexpressioncassettes of the genes of interest, and evaluation of its resistance to yellow stem borerscirpophaga incertulas lepidoptera. Abstract the rice stem borer infestation was a serious problem for rice cultivation in bangladesh.
Larvae of the rice stemborer, chilo suppressalis walker, cause extensive crop losses worldwide. Nazmul huda 1, prosanta kumar dash 1 1agrotechnology discipline, khulna university, khulna, bangladesh. Diversity and functional significance of cellulolytic microbes living in termite, pillbug and stemborer guts. Pyralidae, is an important pest of rice, oryza sativa l. The yellow stem borer ysb, scirpophaga incertulas walker lepidoptera. The yield data of different insecticides against paddy yellow stem borer, scirpophaga incertulas wlk showed significant findings. Evaluation of different insecticides and botanical extracts. Insect feeding bioassays demonstrated that the cry2a protein was effective against the yellow stem borer and the rice leaf folder, two major rice pests in the indian subcontinent. Afzalseasonal abundance and population trends of yellow stem borer schoenobius incertulas walker pyralidae. Chang, 1981, myanmar, pakistan moiz and rizvi, 1971, philippines litsinger et al. Management of stem borers has been relied on the use of synthetic insecticides but has been an. Conclusion stem borer is a serious problem in grapevine and causes serious damage. However the term most frequently refers among the coleoptera to the larva of certain longhorn beetles such as dorysthenes buqueti and those of the genus oberea, and among the lepidoptera to certain moths of the crambidae, castniidae, gelechiidae, nolidae, and pyralidae families. Second instar larvae enclose themselves in body leaf wrappings to make tubes and detach themselves from the leaf and falls onto the water surface.
Larvae of the rice stem borer, chilo suppressalis walker, cause extensive crop losses worldwide. It is the most abundant stem borer in tropical lowland rice anddeepwater rice and is a damaging pest as it attacks allthe stages of the rice crop. Stem borers, natural enemies, relative abundance, rice ecosystem. Larvae of rice stem borers bore into the stems of rice plants after hatching from eggs. Management of rice yellow stem borer, scirpophaga incertulas walker using some biorational insecticides sitesh chatterjee1 and palash mondal2 abstract the experiments were carried out to study the performance of some biorational insecticides against yellow stem borer, scirpophaga incertulas walker in boro rice at rice research station, chinsurah. If you continue browsing the site, you agree to the use of cookies on this website. Results showed that the dominant species of stem borer was yellow stem borer scirpophaga incertulas wlk. Yellow stem borer, gallmidge, brown planthopper, green. The yellow stem borer, scirpophaga incertulas walker, emerged as the dominant pest of deepwater rice in an intensive 4year ecological study in two farmers. Dectes stem borer aka soybean stem borer in kentucky grown soybeans download pdf.
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