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A review of neem biopesticide utilization and challenges in Central Northern Nigeria
Salako Samuel
InTech eBooks
Control of Toxigenic Fungi and Mycotoxins with Phytochemicals: Potentials and Challenges
2013 •
Toba S . Anjorin
Comparative effect of neem seed kernel extract and two synthetic insecticides against the new major pest of sorghum, Poophilus costalis in Togo
2013 •
KOKU AGBOYI
Since 2001 in Northern Togo, most varieties of sorghum are damaged by severe attacks of the new major pest Poophilus costalis (Walker) (Hemiptera: Aphrophoridae). This pest was not important for sorghum before 2001. Both adults and larvae feed on leaves of Sorghum by sucking the sap. The symptoms are chlorosis and necrosis of sorghum leaves. Severe attack could induce in farm 100% crop losses. Bioassays with a field population of P. costalis were conducted in laboratory to compare the efficacy of crude aque ous Neem ( Azadirachta indica ) Seed Kernel Extract (local material) to chemicals, cypermethrin and carbofuran. Field experiments were carried out at the same time in research station. In laboratory, the three insecticides were tested against the third insta rs (L 3 ) of P. costalis but, in field, all the stages were observed. The result indicated a lower efficacy of Neem Kernel Extract, compared to cypermethrin and carbofuran to control P. costalis . The LC 50 for Neem Kernel wa...
Beauveria bassiana 5653 could be an alternative to synthetic insecticides against Plutella xylostella in Togo
2013 •
KOKU AGBOYI
An evaluation of the potential use of the entomopathogen Beauveria bassiana strain 5653 for biologicalcontrol of cabbage major pest, Plutella xylostella was carried out under station and farm conditions in thelittoral ecosystem in Togo. The experiment was conducted using the sprayed solution of B. bassiana 5653 incomparison with synthetic insecticides. The results revealed that the formulation of B bassiana 5653 reducedsignificantly the density of P. xylostella populations. The use of B. bassiana 5653 increased the cabbage yieldby 57% on farm, compared to the control. Contrary to the entomopathogen, the synthetic insecticidesCONQUEST PLUS 388 EC. (16 g acetamipride, 300 g triazophos and 72 g cypermethrin) and DECIS 25 EC. (25 gdeltamethrin) used as references had any effects on P. xylostella densities and cabbage yields compared to thecontrol, indicating that P. xylostella was not susceptible to the synthetic insecticides. Thus, the use of the bioinsecticide B. bassiana 5653 could b...
Plants
Medicinal Plants as a Natural Greener Biocontrol Approach to “The Grain Destructor” Maize Weevil (Sitophilus zeamais) Motschulsky
Madira Manganyi
According to the United Nations (UN), the global population may skyrocket to 9.8 billion people in 2050 and 11.2 billion in 2100, placing an overwhelming burden on food security as the world will have to meet this growing demand. Maize is the largest staple grain crop produced in developing countries. The maize weevil, Sitophilus zeamais, is one of the most destructive post-harvest pests of stored cereals and grains. The maize weevil contributes up to 40% of total food-grain losses during storage, mainly in developing countries. Current synthetic pesticides are ineffective, and, moreover, they raise serious environmental safety concerns as well as consumer health hazards. Drawing from past oversights and current environmental realities and projections, the global population has been switching to green living by developing sustainable strategies. In our context, these new greener strategies include the utilization of medicinal plants to control maize weevil infestation, which unlocks...
Management of Fungal …
4 Exploitation of Botanicals in the Management of Phytopathogenic and Storage Fungi
2010 •
Awadhesh Shukla
Azarian Journal of Agriculture In vitro evaluation of leaf extracts on the growth of Aspergillus niger infecting maize grains
2017 •
victor okereke
Mycotoxin producing fungi are important pathogens affecting stored maize grains. Conventional management strategies using synthetic chemicals are expensive, hazardous and environmentally unfriendly. This has necessitated the search for alternatives in botanicals. Market sampling of maize grains were carried out in five markets in Port Hartcourt, Nigeria, namely; Choba-main and Choba junction, Rumuosi, Aluu and Ozuoba, to evaluate the occurrence of mycotoxin-producing fungi. Studies were then carried out in the laboratory to evaluate the efficacy of water leaf extracts of Azadirachta indica, Garcina kola, Moringa oliefera, Ocimium gratissimum, Gongronema latifolium and Vernonia amygdalina at three different concentrations (2.5, 5.0 and 7.5% w/v) on the prevalent fungus. Result from the market sampling showed that Aspergillus niger, Aspergillus flavus and Pennicillin sp were commonly isolated from the maize grains with Aspergillus niger having the highest occurrence. Choba markets wer...
Pesticides - Advances in Chemical and Botanical Pesticides
Plants as Potential Sources of Pesticidal Agents: A Review
2012 •
SIMON OKWUTE
Plants as Potential Sources of Pesticidal Agents: A Review. In: Pesticides–Advances in Chemical and Botanical Pesticides (Chapter 9
2012 •
SIMON OKWUTE
14+ MILLION TOP 1% MOST CITED SCIENTIST 12.2% AUTHORS AND EDITORS FROM TOP 500 UNIVERSITIES Plants as Potential Sources of Pesticidal Agents: A Review
2020 •
SIMON OKWUTE
