EFFICACY OF INSECTICIDES ON PESTS OF MULBERRY AND THEIR INFLUENCE ON THE BIOLOGY AND SILK YIELDS OF MULBERRY SILK WORM Bombyx mori L. (LEPIDOPTERA:BOMBYCIDAE)
| dc.contributor.advisor | RAJENDRA PRASAD, P. | |
| dc.contributor.author | RAMAIAH, MANIYARAM | |
| dc.date.accessioned | 2018-06-11T08:48:19Z | |
| dc.date.available | 2018-06-11T08:48:19Z | |
| dc.date.issued | 1998 | |
| dc.description.abstract | ThepresentstudieswereundertakenatTirupati,during 1996-97tostudythefaunalcomposition and seasonal incidence ofmulberrypests, in addition toevaluationoffewinsecticidesfor theirefficacyagainstmulberrypestsandtoxicityagainstsilkwormlarvae.Theexperimentalmaterial comprisedofM-5cultivarofmulberry,raisedinagardenof25cents. Theresultsrevealedinfestationofmulberrybynineinsectpests,belongingtosevenorders and 12 families.Amongthese,peakinfestationofmites,thrips,aphidsandbugswasobservedduringsummermonths,whilethepeakpopulationofleaf hOppers,caterpillars andgrasshopperswasobservedduringthemonthofJanuary, whentheminimumtemperatureswerequitelow.However,maximumpopulationof mealybugswasobservedduringrainyseason. Studiesonrelativeefficacyoftheinsecticidesagainstmulberrypestswas undertaken in arandomizedblockdesign withthree replications and seven treatments, including control.Resultsrevealedtheeffectiveness ofPhosalone (0.05%)andDimethioate(0.1%)againstthesuckingpests;andDDVP(0.05%)and Endosulfan(0.05%) againstthedefoliators. Nemazole(1%)was alsoobserved effectiveinthemanagementofbothsuckinganddefoliatorpestpopulationlevels. Studiesoninsecticidaltoxicitytosilkwormlarvaerevealedrelativelyshorterwaitingperiods for DDVP (0.05%) andNemazole(1%) and longperiods forcarbaryl(0.1%)andPhosalone(0.05%). Insecticidaltreatmentofmulberryleaveswasalso noticed to resultinincreased larval andpupal durations. Phosalone(0.05%) inspite of its high effectiveness against the insect pests is not recommendedforuseonmulberryduetohighresidualtoxicityandunfavourable effectsonthelarval,pupal,cocoonandshellweights,inadditiontosilkshellratio andlengthofreeledsilk. Carbaryl (0.1%)had also,ingeneralrecordedsimilar effects,whileDDVP (0.05%),Dimethioate(0.1%)andEndosulfan(0.05%)had mostlyrecordedeffectsonparwithcontrol.Incontrast,Nemazole(1%)recorded shorterwaitingperiod, satisfactory control ofdifferentmulberrypests and favourable effects on the economiccharacters ofsilkworm viz., cocoonweight, shellweight,andlengthandweightofreeledsilk.Itisthereforerecommendedfor extensiveuseinsericulture. | en_US |
| dc.identifier.citation | D5721 | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810050853 | |
| dc.keywords | EFFICACY INSECTICIDES PESTS MULBERRY THEIR INFLUENCE BIOLOGY SILK YIELDS MULBERRY SILK WORM Bombyx mori L. (LEPIDOPTERA:BOMBYCIDAE) | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 168p. | en_US |
| dc.publisher | Professor Jayashankar Telangana State Agricultural University | en_US |
| dc.sub | Entomology | en_US |
| dc.subject | null | en_US |
| dc.theme | entomology | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | EFFICACY OF INSECTICIDES ON PESTS OF MULBERRY AND THEIR INFLUENCE ON THE BIOLOGY AND SILK YIELDS OF MULBERRY SILK WORM Bombyx mori L. (LEPIDOPTERA:BOMBYCIDAE) | en_US |
| dc.type | Thesis | en_US |
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- EFFICACY OF INSECTICIDES ON PESTS OF MULBERRY AND THEIR INFLUENCE ON THE BIOLOGY AND SILK YIELDS OF MULBERRY SILK WORM Bombyx mori L. (LEPIDOPTERA:BOMBYCIDAE)