scholarly journals Efficacy of mixed powders of Piper guineense and Zingiber officinale as maize grain protectants against Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

2017 ◽  
Vol 10 (5) ◽  
pp. 1961 ◽  
Author(s):  
Daniel Chepo Chougourou ◽  
Yedomon Ange Bovys Zoclanclounon ◽  
Christophe Homevo Agossa ◽  
Sewanoude Elvire Doris Sakiti ◽  
Alponse Agbaka
Keyword(s):  
Zingiber Officinale ◽  
Sitophilus Zeamais ◽  
Piper Guineense ◽  
Grain Protectants ◽  
Maize Grain

scholarly journals Food selection of maize weevil Sitophilus Zeamais (motschulsky)

2020 ◽  
Vol 42 (2) ◽  
Author(s):  
Nguyen Van Dzuong ◽  
Khuat Dang Long
Keyword(s):  
Food Selection ◽  
Abundant Species ◽  
Sitophilus Zeamais ◽  
Rice Grain ◽  
Maize Weevil ◽  
Food Grains ◽  
Dried Fruit ◽  
Maize Grain ◽  
Food Grain ◽  
Selection Of

The instintive behaviour exhibited by insects in the selecting  food is always a matter of  interests to entomologists, and it is one of the fundamental principles underlining the application of entomology to agriculture, horticulture and forestry. Food seclection is an important characteristic of insects that help them survive in periods with insufficient foods.Three grain types of food, maize grain, long-grain rice and soybean grain, were used in this sudy for detecting food selection behaviours of maize weevil, Sitophilus zeamais. Grains were kept in box traps put in the different stores in Son La during 90 days. The result showed that maize weevil, Sitophilus zeamais, prefered traps with maize grains (71.4%) considerably more than ones with long-grain rice (14.3%) and soybean grain (14.3%). Meanwhile, the cornsap beetle, Carpophilus dimidiatus, was mostly observed in maize grain (98.5%) and to a lesser degree, in soybean grain (1.5%); and the dried-fruit beetle, Carpophilus hemipterus, was abundantly observed in maize grain (93.1%) and less in soybean grain (6.9%). The red flour, Tribolium castaneum, also tended to select all the three food grain, i.e. maize grain: 53.5%, long-rice grain: 35.2%, and soybean grain: 11.3%.Comparing f beetle individuals captured on three types of food grains showed that the maize weevil, Sitophilus zeamais, is the most abundant species. The percentage this store beetle among all beetles observed in maize, soybean grains and long-rice grains were 57.0%, 84.9% and 27.6%, respectively. Interestingly, Ahasverus advena, foreign grain beetle, occurred abundantly on long-rice gain (61.7%), i.e. this grain is a suitable food for the development of this beetle. 

scholarly journals Field evaluation of extracts of five Nigerian spices for control of post-flowering insect pests of cowpea, Vigna unguiculata (L.) Walp.

2010 ◽  
Vol 41 (No. 1) ◽  
pp. 14-20 ◽  
Author(s):  
M. Oparaeke A ◽  
C. Dike M ◽  
I. Amatobi C
Keyword(s):  
Third World ◽  
Insect Pests ◽  
Limited Resource ◽  
Field Evaluation ◽  
Zingiber Officinale ◽  
Piper Guineense ◽  
Clavigralla Tomentosicollis ◽  
Insecticidal Efficacy ◽  
Lepidoptera Pyralidae ◽  
Xylopia Aethiopica

The insecticidal efficacy of aqueous extracts of five Nigerian spices (Piper guineense Schum and Thonn., Aframomum melegueta (Roscoe), Xylopia aethiopica (Dunal) A. Rich., Zingiber officinale L. and Capsicum annuum L.) was tested in a field study for the control of two important post-flowering insect pests, Maruca vitrata Fab. (Lepidoptera: Pyralidae) and Clavigralla tomentosicollis Stal. (Hemiptera: Coreidae) of cowpea. The extracts were applied at 10% (w/v) and sprayed every week for 4 weeks. P. guineense, followed by A. melegueta, significantly reduced (P < 0.01) abundance of the pests and decreased the damage to cowpea pods. Grain yields were significantly higher in plots treated with P. guineense and A. melegueta extracts compared to plots treated with other extracts. This technology is cheap, safe, environmentally friendly and easy to adopt by limited resource farmers in third world countries.

Repellent activity of alligator pepper, Aframomum melegueta, and ginger, Zingiber officinale, against the maize weevil, Sitophilus zeamais

2009 ◽  
Vol 70 (6) ◽  
pp. 751-758 ◽  
Author(s):  
Donald A. Ukeh ◽  
Michael A. Birkett ◽  
John A. Pickett ◽  
Alan S. Bowman ◽  
A. Jennifer Mordue
Keyword(s):  
Zingiber Officinale ◽  
Sitophilus Zeamais ◽  
Repellent Activity ◽  
Maize Weevil

scholarly journals Management of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) using Nigerian Raw Diatomite

2020 ◽  
Vol 24 (9) ◽  
pp. 1663-1669
Author(s):  
M.A. Medugu ◽  
E. Okrikata ◽  
D.M. Dunuwel
Keyword(s):  
Insect Pests ◽  
Application Rate ◽  
Sitophilus Zeamais ◽  
Effective Dosage ◽  
Maize Weevil ◽  
Dose Rates ◽  
Highest Weight ◽  
Grain Damage ◽  
Tolerant Variety ◽  
Maize Grain

Maize weevil, Sitophilus zeamais, whose management has largely been via traditional control practices, is a key pest of stored maize grains causing severe losses. This study explored the use of Nigerian Raw Diatomite (RD) in the management of the weevil. A 3-replicated split plot designed laboratory experiment was conducted for 6 months duration. The treatments were Raw Diatomite (RD) at the rate of 250, 500, 750 and 1000 mg/kg and a control (untreated) across four improved maize grain varieties. Data collected were on mortality, F1 progeny produced, grain weight damage, and loss. Data were analyzed with variance analysis and significantly different means were separated using Turkey Kramer HSD test at P<0.05. Results showed that the control had the least weevil mortality across the varieties throughout the periods of assessment. Highest weevil mortality was recorded with increase in dose rates of RD and progresses to 100% - largely at the 14th day post-treatment. Control recorded the highest weight loss and grain damage of 16.5% and 38.1%, respectively when compared to all the other treatment rates on the most tolerant variety (SAMMAZ 25). The study revealed that RD had a promising potential to substitute synthetic insecticides and can be incorporated into the integrated pest management strategy against maize weevil. We therefore suggest that further work be done to refine the Nigerian RD so as to standardize the most effective dosage application rate for management of insect pests of stored maize and other cereals. Keywords: Raw Diatomite, Sitophilus zeamais, Maize grain damage

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