FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1003708041> ?p ?o ?g. }

• W1003708041 abstract "is the second most important food crop in Kenya after maize. It plays an important role in national food security, poverty alleviation and income generation. The farmers face many problems, such as pest and diseases, expensive farm inputs, poor marketing system and lack of certified seed, storage facilities. Potato Tuber moth (PTM) (Phthorimeae operculeUa) (Lepidoptera: Gelechiidae), is one of the most important pest in potatoes and is capable of causing damage of upto 25% in the field and upto 100% loss in the store if not managed. Management practices for this pest include inert materials such as wood ash, saw dust, sand and rice husks. Insecticides are also used but these have been associated with health and environmental side effects. The objective of this study was to assess PTM activity in the field and in the store, to establish the effect of different harvest periods on PTM infestation, and to evaluate the efficacy of inert materials, insecticides and bio-pesticides in the PTM management. The study was carried out at the National Potato Research Centre (NPRC) Tigoni for two seasons in 2009/2010. Asante and Tigoni potato varieties were used to compare the effect of different harvest periods in the management of PTM. The trial was set up in split plot arrangement in a RCBD consisting of four replicates, the varieties occupied the main plots and the treatments were three different harvest times in the subplots plus a check of recommended harvest time of potatoes in Kenya. The harvested tubers were counted, graded, weighed and assessed for PTM infestation at harvest. Potato tuber moth population build up was assessed in the field, at harvest and in the store. The study demonstrated that PTM infestation in the store depended much on the initial PTM infestation in the field. There was a significant lower PTM infestation observed in the store 0'1 tubers harvested two weeks before physiological maturity for both varieties compared with the check both in the field and in the storage(P<0.05). In the store, inert materials and bio-pesticides were evaluated for the management of PTM. Two potato varieties, Tigoni and Asante and untreated control were used to compare the effect of Cabaryl, Bacillus thuringiensis, Beauvaria bassiana, rice husks, wood ash, sawdust and sand in controlling PTM for three months. The experiment was arranged in a complete randomized design (CRD) with four replications. At the centre of the store, a stock culture of PTM was maintained to provide supply of moths to attack the tubers. Potato tuber moth infestation was assessed and the number of tunnels, larvae and pupae were recorded. In the study, Carbaryl emerged the best treatment in controlling PTM recording the least damage in terms of tunnels, and the PTM larvae infestation of PTM. Bacillus thuringiensis(Bt) and rice husks treatments came second followed by wood ash and saw dust all with significant reduction of the PTM larvae over the untreated control (p :S 0.001). Sand was unable to control PTM. Similar results were obtained in the second season. The rest of the treatments had potential of reducing PTM activity at varied levels of effectiveness. The study also revealed that the population of PTM builds up depending on the initial PTM level of infestation and causes serious potato tuber damages with time. It is, therefore, important to ensure that there is low PIM at harvest by use cultural and agronomic practices known to reduce PTM infestation in the field. The methods evaluated have the ability to reduce the activity of PTM for two and a half months. These results provide alternatives that are cheap and available for use in IPM strategies and to enable farmers preserve both seed and ware potatoes." @default.
• W1003708041 created "2016-06-24" @default.
• W1003708041 creator A5076519006 @default.
• W1003708041 date "2012-01-01" @default.
• W1003708041 modified "2023-09-26" @default.
• W1003708041 title "Evaluation of biopesticides and harvesting periods for management of potato tuber moth (PTM) (Plthorimaea operculella) zeller on potato (solanum tuberosum)" @default.
• W1003708041 hasPublicationYear "2012" @default.
• W1003708041 type Work @default.
• W1003708041 sameAs 1003708041 @default.
• W1003708041 citedByCount "0" @default.
• W1003708041 crossrefType "dissertation" @default.
• W1003708041 hasAuthorship W1003708041A5076519006 @default.
• W1003708041 hasConcept C123963621 @default.
• W1003708041 hasConcept C137580998 @default.
• W1003708041 hasConcept C144027150 @default.
• W1003708041 hasConcept C22508944 @default.
• W1003708041 hasConcept C2778313795 @default.
• W1003708041 hasConcept C2993140171 @default.
• W1003708041 hasConcept C33070731 @default.
• W1003708041 hasConcept C37621935 @default.
• W1003708041 hasConcept C6557445 @default.
• W1003708041 hasConcept C86803240 @default.
• W1003708041 hasConceptScore W1003708041C123963621 @default.
• W1003708041 hasConceptScore W1003708041C137580998 @default.
• W1003708041 hasConceptScore W1003708041C144027150 @default.
• W1003708041 hasConceptScore W1003708041C22508944 @default.
• W1003708041 hasConceptScore W1003708041C2778313795 @default.
• W1003708041 hasConceptScore W1003708041C2993140171 @default.
• W1003708041 hasConceptScore W1003708041C33070731 @default.
• W1003708041 hasConceptScore W1003708041C37621935 @default.
• W1003708041 hasConceptScore W1003708041C6557445 @default.
• W1003708041 hasConceptScore W1003708041C86803240 @default.
• W1003708041 hasLocation W10037080411 @default.
• W1003708041 hasOpenAccess W1003708041 @default.
• W1003708041 hasPrimaryLocation W10037080411 @default.
• W1003708041 hasRelatedWork W1566136917 @default.
• W1003708041 hasRelatedWork W1860726795 @default.
• W1003708041 hasRelatedWork W2112821840 @default.
• W1003708041 hasRelatedWork W2187262924 @default.
• W1003708041 hasRelatedWork W2295647442 @default.
• W1003708041 hasRelatedWork W2462752914 @default.
• W1003708041 hasRelatedWork W2507701960 @default.
• W1003708041 hasRelatedWork W2512696310 @default.
• W1003708041 hasRelatedWork W2531618175 @default.
• W1003708041 hasRelatedWork W2534865782 @default.
• W1003708041 hasRelatedWork W2947604990 @default.
• W1003708041 hasRelatedWork W2953204963 @default.
• W1003708041 hasRelatedWork W3021076299 @default.
• W1003708041 hasRelatedWork W3037386524 @default.
• W1003708041 hasRelatedWork W3169285193 @default.
• W1003708041 hasRelatedWork W3171561477 @default.
• W1003708041 hasRelatedWork W934009010 @default.
• W1003708041 hasRelatedWork W1981882392 @default.
• W1003708041 hasRelatedWork W2281209764 @default.
• W1003708041 hasRelatedWork W2740093984 @default.
• W1003708041 isParatext "false" @default.
• W1003708041 isRetracted "false" @default.
• W1003708041 magId "1003708041" @default.
• W1003708041 workType "dissertation" @default.