Efficacy of Aromatic and Medicinal Plant Powders against Callosobruchus maculatus F. (Chrysomelidae: Bruchinae)

Laboratory bioassays were conducted to investigate the bioactivity of powders, extracts, and essential oils fromAllium sativumL. (Alliaceae) andA. fistulosumL. (Liliaceae) against adults, eggs, and larvae ofCallosobruchus maculatusF. (Coleoptera: Bruchidae). On the basis of 48 hr median lethal toxicity (LC50), test plant powders and extracts fromA. sativumwere more toxic toC. maculatusadults than those fromA. fistulosum. The 48 hrLC50values for the powder against the test insect species were 9.66 g/kg and 26.29 g/kg forA. sativumandA. fistulosum, respectively. Also the 48 hrLC50values obtained show that aqueous extracts of the test plant species, 0.11 g/L (A. sativum) and 0.411 g/L (A. fistulosum) were more toxic toC. maculatusthan the corresponding ethanol extracts. There was no significant difference in the toxicity of vapours from the two test plant species againstC. maculatus, althoughA. sativumgave lower values. The study shows thatA. sativumandA. fistulosumhave potentials for protecting stored cowpea from damage byC. maculatus.

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Effects of interaction between cowpea variety and the application of plant powders on Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) infestation of stored cowpea seeds

Annals of Tropical Research ◽

10.32945/atr4213.2020 ◽

2020 ◽

pp. 33-44

Author(s):

Owolabi Moshood Azeez ◽

Adebola Adedoyin Osipitan ◽

Isaac Oludayo Daniel ◽

Olufemi Olutoyin Richard Pitan

Keyword(s):

Callosobruchus Maculatus ◽

Adult Emergence ◽

Adult Mortality ◽

Management Scheme ◽

Cowpea Seeds ◽

Randomized Design ◽

Hyptis Suaveolens ◽

Plant Powders ◽

Seed Resistance ◽

Cowpea Variety

An integrated pest management scheme involving seed resistance and the application of powder of Cymbopogon citratus, Alstonia boonei, Hyptis suaveolens, Azadirachta indica, Loranthus braunii and Lycopersicum esculentum as protectant against the seed bettle, Callosobruchus maculatus (Fabricius), was evaluated in the laboratory at ambient temperature (29±3°C) and relative humidity (65±5%). Six resistant cowpea accessions selected from previous studies were treated with the six plant powders at 1.25% w/w in a 6×7 factorial arrangement fitted into a completely randomized design with five replicates. Seed treatment with any of the six plant powders on six accessions resulted in significantly higher adult mortality, lower oviposition rate, adult emergence inhibition, lower seed damage and higher seed germination over the control, Protection ability of the plant powders was influenced by the cowpea accessions used.

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Efficacy of two plant powders as cowpea grain protectants against Callosobruchus maculatus Fabricius (Coleoptera, Chrysomelideae: Bruchinae)

Journal of Applied Biosciences ◽

10.4314/jab.v105i1.11 ◽

2016 ◽

Vol 105 (1) ◽

pp. 10152

Author(s):

Daniel Chepo Chougourou ◽

Christophe Homevo Agossa ◽

Yedomon Ange Bovys Zoclanclounon ◽

Medewouin Genice Nassara ◽

Alphonse Agbaka

Keyword(s):

Callosobruchus Maculatus ◽

Plant Powders ◽

Grain Protectants

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A Review on Influence of Spray Drying Process Parameters on the Production of Medicinal Plant Powders

Current Drug Discovery Technologies ◽

10.2174/1570163815666180801152918 ◽

2019 ◽

Vol 16 (4) ◽

pp. 340-354 ◽

Cited By ~ 1

Author(s):

Loreana Gallo ◽

Verónica Bucalá

Keyword(s):

Medicinal Plants ◽

Medicinal Plant ◽

Spray Drying ◽

Process Parameters ◽

Development Stage ◽

Operating Conditions ◽

World Population ◽

Plant Powders ◽

Pharmaceutical Form ◽

Drying Technology

Medicinal plants are used by 80% of the world population as primary health care and the phytomedicine market is growing exponentially. Currently, the production of phytopharmaceuticals with proper efficacy, safety and consistent quality constitutes a relevant challenge. The dried dosage forms of medicinal plants are preferred than liquid presentations because of their higher stability. The spray drying technology is the most employed process to produce dried extracts from medicinal plant liquid extracts. These powders need to meet certain physicochemical (e.g., moisture content, hygroscopicity, particle size, density, the concentration of active ingredients) and mechanical (e.g., flowability and compressibility) properties to be used in a solid pharmaceutical form. In addition, high process yields and good powder quality can be obtained by selecting suitable process parameters: spray drying operating conditions and type/concentration of carriers (drying coadjuvants). The optimal process parameters are strongly affected by the chemical nature of the medicinal plant extract. This review aims to give a general guide to understand the effect of the process parameters on the product properties and process yield. This guideline could help practitioners and researchers to initially select the levels of the process variables to decrease the time and cost of the development stage of medicinal plants powders.

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Use of different non-chemical methods for the management of adult Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) in stored chickpea

Journal of Bio-Science ◽

10.3329/jbs.v23i0.37468 ◽

2018 ◽

Vol 23 ◽

pp. 57-65

Author(s):

SHA Mahdi ◽

M Hasan ◽

I Mahfuz ◽

M Khalequzzaman

Keyword(s):

Low Temperature ◽

Uv Radiation ◽

Callosobruchus Maculatus ◽

Exposure Period ◽

Temperature Treatment ◽

Physical Factors ◽

Dry Heat ◽

Low Temperature Treatment ◽

Plant Powders ◽

Parthenium Weed

The efficiency of physical factors (dry heat, low temperature and UV-radiation), leaf powders of Neem (Azadirachta indica A. Juss.), Bichuti (Flacourtia indica Merr.) and Parthenium weed (Parthenium hysterophorus L.) and two insecticides (Salvo and Amithrin plus) was evaluated against Callosobruchus maculatus (F.). For dry heat treatment, the calculated LD50 values for C. maculatus were 56.92, 54.26, 52.27, 50.76, 49.09, 50.55 and 29.59°C after 50, 60, 70, and 80 minutes, 24, 36, 48 h of treatment respectively, and the LD50 values were 58.61 and 5.18°C at 1 and 2 h for low temperature treatment respectively. LT50 values of the treatment of UV-radiation were 48.63, 29.89, 17.54, 11.11, 5.93 and 1.35 °C for the exposure period of 24, 36, 48, 60, 72 and 48 h respectively. The calculated LD50 values of leaf powder were 3.38, 3.15, 2.88, 2.45 and 2.40 mg cm-2 for A. indica, 3.91, 3.80, 3.55, 3.30, and 3.08 for F. indica, 12.11, 4.35, 1.86, 1.49, and 1.36 for P. hysterophorus after 12, 24, 36, 48 and 60 h of treatment respectively. The calculated LD50 values were 0.64, 0.33, 0.23, 0.04 and 0.008 mg cm-2 for Salvo and 0.35, 0.23, 0.09, 0.08 and 0.01 mg cm-2 for Amithrin plus at 12, 24, 36, 48 and 60 h respectively. The order of effectiveness of physical factors was dry heat >low temperature >UV-radiation. On the other hand, the order of toxicity of plant powders was F. indica >A. indica >P. hysterophorus. In case of insecticides it was Amithrin plus >Salvo. The findings suggest that physical factors and plant leaf powders can be used in integration with other bio rational approaches.J. bio-sci. 23: 57-65, 2015

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Oviposition deterrence and ovicidal properties of some plant powders against Callosobruchus maculatus in stored cowpea (Vigna unguiculata) seeds

The Journal of Agricultural Science ◽

10.1017/s0021859600075766 ◽

1990 ◽

Vol 115 (3) ◽

pp. 343-345 ◽

Cited By ~ 14

Author(s):

T. I. Ofuya

Keyword(s):

Nicotiana Tabacum ◽

Plant Species ◽

Vigna Unguiculata ◽

Callosobruchus Maculatus ◽

Oviposition Deterrence ◽

Egg Hatch ◽

Ocimum Gratissimum ◽

Cowpea Seeds ◽

Plant Powders

SUMMARYPowders made from 15 plant species were tested in the laboratory against C. maculatus on stored cowpea seeds. Fewest eggs were laid on seeds mixed with Nicotiana tabacum powder. Few eggs were also laid on seeds mixed with powders obtained from Erythrophleum suaveolens and Ocimum gratissimum. N. tabacum powder, followed by E. suaveolens powder, was the most effective in reducing egg hatch.

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