Abstract
F. Olubayo, A. Kibaru, J. Nderitu, R. Njeru, S. Shibairo and M. Kasina. 2008. Management of Aphids and Aphid-Transmitted Viruses in Stored Seed Potatoes in Kenya. Int. J. Sustain. Crop Prod. 3(5):40-45 This study was carried out in two storage seasons viz. May to August 2002 and November 2002 to February 2003 to determine effectiveness of insecticides (bifenthrin, dimethoate, mineral oil, pirimiphos-methyl plus permethrin) and commonly used indigenous technical knowledge (ITK) technologies (fresh blue gum leaves, dry grass and wood ash) to reduce aphid infestation and manage aphid-transmitted viruses in stored potato seed tuber sprouts during 2002 and 2003 at National Potato Research Center (NPRC), Tigoni, Kenya Agricultural Research Institute, Kenya. Three aphid species Aulacorthum solani, (Kalt) Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) colonized the stored seed tubers. Aulacorthum solani was the most common followed by M. persicae then M. euphorbiae in both storage periods. Both bifenthrin and wood ash significantly (P<0.05) reduced aphid infestation. Two of the most economically important potato viruses such as potato leaf roll virus (PLRV) and potato virus Y (PVY) were serologically identified in all tubers infested by aphids with the latter having the lowest incidence in bifenthrin treated tubers while the former had its lowest incidence in DC Tron treated tubers. Both viruses had their highest incidence in untreated tubers. The presence of aphids and their related virus diseases on stored tubers affirms the importance of the storage phase pest management to assure quality seed tubers. This would reduce field losses associated with the aphids and the aphid-transmitted viruses. In addition, better quality seeds would assure farmers of improved productivity hence more family income.
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Claims 10
Claim · model-written summary
Three aphid species colonized stored seed tubers.
- Taxon
- potatoes
Solanum tuberosumt0 - Interactor
- Aulacorthum solani
Aulacorthum solanie0pest - Outcome
- colonized the stored seed tuberse0
- Qualifier
- Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three aphid species Aulacorthum solani, (Kalt) Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) colonized the stored seed tubers.”
t0“potatoes”
Claim · model-written summary
Aulacorthum solani was the most common aphid, followed by M. persicae and M. euphorbiae in both periods.
- Taxon
- potatoesSolanum tuberosumt0
- Interactor
- Aulacorthum solaniAulacorthum solanie0pest
- Outcome
- most commone0
- Qualifier
- followed by M. persicae then M. euphorbiae in both storage periodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aulacorthum solani was the most common followed by M. persicae then M. euphorbiae in both storage periods.”
t0“potatoes”
Claim · model-written summary
Bifenthrin significantly reduced aphid infestation.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- bifenthrine0
- Interactor
- aphide0pest
- Outcome
- aphid infestatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both bifenthrin and wood ash significantly (P<0.05) reduced aphid infestation.”
t0“potatoes”
Claim · model-written summary
Wood ash significantly reduced aphid infestation.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- wood ashe0
- Interactor
- aphide0pest
- Outcome
- aphid infestatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both bifenthrin and wood ash significantly (P<0.05) reduced aphid infestation.”
t0“potatoes”
Claim · model-written summary
PLRV was identified in all aphid-infested tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Interactor
- potato leaf roll virus (PLRV)
Potato leafroll viruse0pathogen - Outcome
- serologically identified in all tubers infested by aphidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato leaf roll virus (PLRV) and potato virus Y (PVY) were serologically identified in all tubers infested by aphids”
t0“potatoes”
Claim · model-written summary
PVY was identified in all aphid-infested tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Interactor
- potato virus Y (PVY)
Potato virus Ye0pathogen - Outcome
- serologically identified in all tubers infested by aphidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato leaf roll virus (PLRV) and potato virus Y (PVY) were serologically identified in all tubers infested by aphids”
t0“potatoes”
Claim · model-written summary
PVY incidence was lowest in bifenthrin-treated tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- bifenthrine0
- Interactor
- potato virus Y (PVY)Potato virus Ye1pathogen
- Outcome
- incidencee0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the latter having the lowest incidence in bifenthrin treated tubers”
e1“potato virus Y (PVY)”
t0“potatoes”
Claim · model-written summary
PLRV incidence was lowest in DC Tron-treated tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- DC Trone0
- Interactor
- potato leaf roll virus (PLRV)Potato leafroll viruse1pathogen
- Outcome
- incidencee0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the former had its lowest incidence in DC Tron treated tubers”
e1“potato leaf roll virus (PLRV)”
t0“potatoes”
Claim · model-written summary
Both viruses had their highest incidence in untreated tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- untreated tuberse0
- Interactor
- potato leaf roll virus (PLRV)Potato leafroll viruse1pathogen
- Second interactor
- potato virus Y (PVY)Potato virus Ye1pathogen
- Outcome
- highest incidencee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both viruses had their highest incidence in untreated tubers.”
e1“potato leaf roll virus (PLRV) and potato virus Y (PVY)”
t0“potatoes”
Claim · model-written summary
The authors conclude that storage phase pest management is important for quality seed tubers.
- Taxon
- potatoesSolanum tuberosumt0
- Interactor
- aphidsAphidomorphae0pest
- Outcome
- storage phase pest management to assure quality seed tuberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of aphids and their related virus diseases on stored tubers affirms the importance of the storage phase pest management to assure quality seed tubers.”
t0“potatoes”
The same questions in other papers
bifenthrin · pest · Solanum tuberosum (potato)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.