J. Bio. Env. Sci.5(4), 419-427, October 2014
This study describes the distribution patterns of S. hermonthica infestation present in 117 farmers’ fields located in 61 villages in the three major cereal growing areas of Benue and Nasarawa states. A total of 1098 respondents were randomly selected proportionate to the number of households in all the zones. Striga count was taken using a quadrat and farmers’ fields were visually assessed using a five-category ranking (very high density,high density, medium, low, very low density) and recording the geo referenced data. On average, 67.3 and 3.2% of the surveyed area were infested with high and low density of Striga, respectively. The mean number of Striga plants per m2 was greater at Nassarawa State (one to eighteen plants m-2) than Benue State (one to twelve plants m -2). In Benue, the largest percentage of Striga infestation was recorded in Buruku (49.7%) and the lowest was obtained in Guma (38.3%). In Nassarawa, under sorghum cultivation, higher Strigadensties were recorded in Karu and Awe LGA; while Doma, Keana and Obi LGA recorded moderate Striga infestation. In both locations, Striga infestation was highest in sorghum fields; while millet fields recorded the least. About 40% and 35.4% of the farmers reported that new modern farming methods and Striga control copping strategies, respectively are received from Extension agents , during Monthly Technology Review Meeting (MTRM). The study has provided baseline information on the spread of S. hermonthica in the Southern Guinea Savanna of Nigeria and therefore, copping strategies for its control should be intensified.
Akal PS, Avav T, Magani IE. 2012. Effects of Time of Intercropping of Mucuna (Mucuna cochinchi-nensis) in Maize (Zea mays) for Weed and Soil FertilityManagement.International Journal of Agriculture and Biology. 1814–9596.
Berner DK, Alabi MO, Di-umba U,Ikie FO. 1996. Proposedintegrated control program for Striga hermonthica in Africa. In:Advances in Parasitic Plant Research. Proceedings of the Sixth InternationalParasiticWeed Symposium (Cordoba, Spain, 16–18 April 1996).Junta deAndalucia, Direccion General de InvestigacionAgraria, Cordoba,Spain, 817–825.
Dugje IY, Kamara AY, Omoigui LO. 2006. Infestation of crop fields by Striga species in the savanna zones of northeast Nigeria. Agric. Ecosyst and Envt. 116, 251 -254.
Emechebe AM, Ellis-Jones J, Schulz S, Chikoye D, Douthwaite B, Kureh I. 2004. Farmers’ perception of the Striga problem and itscontrol in northern Nigeria.Exp. Agric. 40, 215–232.
Gurney AL, Slate J, Press MC, Scholes JD. 2006. A novel formof resistance in rice to the angiosperm parasite Striga hermonthica. NewPhytol. 169, 199–208.
Hearne SJ. 2009. Control – the Striga conundrum. Pest Manag. Sci. 65, 603–614.
Kabambe VH, Kanampiu F, Ngwira A. 2008. Imazapyr (herbicide)seed dressing increases yield, suppresses Striga asiaticaand has seeddepletion role in maize (Zea mays L.) in Malawi. Afr. J. Biotechnol. 7, 3293–3298.
Kim SK. 1994. Genetic of maize tolerance to S. hermonthica.Crop Sci. 34, 900-907.
Lagoke, STO, Shebayan JY, Magani IE, Olorunju P, Olufajo OO, Elemo KA, Uvah I, Adeoti AA, Chindo PS, Kureh I, Emechebe AM, Ndahi WB, Kim SK, Weber G, Singh BB, Salawu A, Avav T, Sule TT. 1997. Striga problems and development of appropriate control technologies in Nigeria. In: S.T.O. Lagoke, E.I. Vander straten and S.S. M’Boob. Proceeding of 3rd General Workshop of Pan Africa Striga control Network (PANSCON) 18-23rd October, Harare, Zimbabwe, 157 pp. Accra (Ghana) FAO.
Menkir A, Kling JG. 2007. Response to recurrent selection forresistance to Striga hermonthica (Del.) Benth in a tropical maizepopulation.Crop Sci. 47, 674–684.
Parker C. 2009.Observations on the current status of OrobancheandStriga problems worldwide. Pest Manag. Sci. 65, 453–459.
Parker, Riches CR. 1993. ParasiticWeeds of theWorld: Biology andControl. CAB International, Wallingford, UK.
Ramaiah KV, Parker C,VasudevaRao MJ, Musselman LJ. 1983. Striga identification and control handbook. Information Bulletin No. 15. Patancheru, A.P., India: International Crops Research Institute for the Semi-Arid Tropics.
Rector BG. 2009. A sterile–female technique proposed for control ofStriga hermonthica and other intractable weeds: advantages,shortcomings and risk management. Pest Manag. Sci. 65, 596–602.
Sule TT, Avav T, Shave PA. 2008. Distribution and intensity of Striga in Benue state.Nigerian Journal of Weed Science. 21, 4 – 11.