Results 11 to 20 of about 1,037 (102)

Bionomics of the sweet potato weevil, Cylas puncticollis (Coleoptera: Brentidae) on four different sweet potato varieties in sub-Saharan Africa [PDF]

open access: yesJournal of Agriculture and Rural Development in the Tropics and Subtropics, 2018
Sweet potato (Ipomoea batatas (L.) Lam.) is an important staple food crop in sub-Saharan Africa. A limiting production factor is infestation by the sweet potato weevil Cylas puncticollis (Boheman) (Coleoptera: Brentidae). The use of host plant resistance
Médétissi Adom   +4 more
doaj   +3 more sources

Screening of some sweet potato (Ipomoea batatas (L.) Lam) genotypes for yield and damage by Cylas puncticollis under rainfed conditions in Umudike, Southeastern Nigeria [PDF]

open access: yes, 2022
A field experiment was conducted at the National Root Crops Research Institute, Umudike, Southeastern Nigeria during the 2015 and 2016 cropping seasons to evaluate diversity among F1 population of sweet potato, namely: Sauti × 442162 (6), Ligri × Faara ...
Joseph, Ulasi I.   +2 more
core   +1 more source

Use of Metarhizium anisopliae Chitinase Genes for Genotyping and Virulence Characterization

open access: yesBioMed Research International, Volume 2013, Issue 1, 2013., 2013
Virulence is the primary factor used for selection of entomopathogenic fungi (EPF) for development as biopesticides. To understand the genetic mechanisms underlying differences in virulence of fungal isolates on various arthropod pests, we compared the chitinase genes, chi2 and chi4, of 8 isolates of Metarhizium anisopliae.
Saliou Niassy   +6 more
wiley   +1 more source

Preliminary observations on use of Beauveria bassiana for the control of the sweet potato weevil (Cylas sp.) in South Africa

open access: yesOpen Agriculture, 2017
Sweet potato weevils (Cylas puncticollis and C. formicarius) are notorious pests of sweet potato and cause severe losses in marketable yield. The study tested the use of Beauveria bassiana ((Balsamo) Vuillemin) (Deuteromycota: Hyphomycetes) for ...
Hlerema Igenicious   +2 more
doaj   +1 more source

Evaluation of Sweet Potato Clones for Resistance to Cylas puncticollis Boheman (Coleoptera : Apionidae) in Sierra Leone. A.M. Alghali & W.W. Munde [PDF]

open access: yesTropicultura, 2001
A study to evaluate fifteen clones of sweet potato for their resistance to the weevil Cylas puncticollis was under taken over two cropping seasons. The clones were mostly advanced breeding Unes or materials released to farmers in Sierra Leone. Numbers of
Alghali, AM., Munde, WW.
doaj  

Influence of sweetpotato rooting characteristics on infestation and damage by Cylas spp

open access: yes, 2001
Studies were carried out in the field at Serere Agricultural and Animal Production Research Institute (SAARI), Eastern Uganda, to establish whether the existing sweetpotato germplasm in Uganda has cultivars resistant to the sweetpotato weevils, Cylas spp.
N.E. J.M Smit   +9 more
core   +4 more sources

Percentage of Cylas puncticollis contigs assigned to a certain gene ontology term as predicted by QuickGO from EBI.

open access: yes, 2015
Percentage of Cylas puncticollis contigs assigned to a certain gene ontology term as predicted by QuickGO from EBI.
Ana Bailey (683892)   +8 more
core   +1 more source

Alternate host plants, hibernation sites and survival strategy of Cylas puncticollis Boh.: A new pest of cotton [PDF]

open access: yes, 2013
Survey and field experiments from 2001 – 2005 were carried out on cotton farms and surroundings to determine the alternate host plants, hibernation and survival strategy of Cylas puncticollis Boh.
Isa, Onu,, Anna, Malgwi, M.
core   +1 more source

Adult longevity, fecundity and oviposition characteristics of Cylas puncticollis Boheman on sweet potatoes

open access: yes, 1997
African Crop Science Journal, 1997, Vol. 5. No.1, pp. 39-45. Adult longevity, fecundity and oviposition characteristics of Cylas puncticollis Boheman on sweet potatoes R.A. Sathula, J.M. Logan, D.C. Munthali and G.K.C. Nyirenda Code Number: CS97006 Sizes

core   +2 more sources

Nuclease activity decreases the RNAi response in the sweetpotato weevil Cylas puncticollis

open access: yes, 2019
RNA interference (RNAi) refers to the process of suppression of gene expression in eukaryotes, which has a great potential for the control of pest and diseases. Unfortunately, the efficacy of this technology is limited or at best variable in some insects.
Prentice Muro, Katterinne   +3 more
core   +1 more source

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