Economic Losses from Insect Pest Infestation on Rice Stored on-farm in Benin

Togola, Abou; Seck, Pape Abdoulaye; Glitho, Isabelle Adolé; Diagne, Aliou; Adda, Cyrille; Touré, A.; Nwilene, F. E.

doi:10.3923/jas.2013.278.285

Cited by 25 publications

(23 citation statements)

References 8 publications

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“…Weevil damage increased progressively from 10 to 60 to 120 days in all inbred lines. These results are similar with those of Tefera et al (2011) and Togola et al (2013) who reported the same trend. According to Tefera et al (2016), despite the shape, size and hardness of the grain, its chemical and nutritional composition are important primarily in resisting insect attack and damage, the length of exposure of the grain to the pest may affect the level of infestation of maize varieties by S. zeamais thus compromising extent of maize damage.…”

Section: Maize Weevil Damage Of Inbred Linessupporting

confidence: 93%

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Khakata¹,

Mbute²,

Cheminingâ€TMwa³

et al. 2018

J. Plant Breed. Crop Sci.

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Maize weevil (Sitophilus zeamais Motschulsky) is a major maize (Zea mays L.) storage insect pest in the tropics which reduces the quantity and quality of maize hence facilitating establishment of aflatoxin and other mycotoxins. The objective of this study was to evaluate maize weevil resistance on selected inbred lines. Twenty eight inbred lines with 2 checks (MTPO701-reistant and Duma 41-susceptible) were used in this experiment. Thirty unsexed adult insects were introduced into 250 ml glass jars with grains of the lines at room temperature. Evaluation of weevil damage was done at 10, 60 and 120 days after maize weevil infestation. Each category of storage period was replicated 4 times and experiment was set at the same time. Data was collected on percent weevil damage, grain weight loss and number of live and dead weevils on each inbred line. ANOVA analysis showed significant differences (P ≤ 0.05) on weight loss. The selection of the resistant genotypes was based on percent weight loss after 60 days. Resistant lines selected included KEN2/TZL2.25# and LEPOOL-1/TZL2-2-1. These lines showed resistance to maize weevil damage and hence can be stored up to 4 months. At 120 days there was maximum damage and most lines could not be differentiated on the basis of resistance. KEN2/TZL2-2-5# showed consistency in resistance to maize weevils at all storage periods. High heritability at 60 days showed that selection for weevil resistance in these inbred lines is effective and feasible. Results in this study also revealed high, positive and significant correlation relationship between percent damage, weight loss and live weevils. The maize weevil resistant lines can be used to improve resistance of high yielding varieties in breeding programmes.

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Section: Maize Weevil Damage Of Inbred Linessupporting

confidence: 93%

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Khakata¹,

Mbute²,

Cheminingâ€TMwa³

et al. 2018

J. Plant Breed. Crop Sci.

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“…Many efforts have been employed in preventing the effects from these caterpillars on rice in the coastal region of Nunez. The methods we employed posed no risks as compared to chemical controls that may result in serious health risks to man and the environment [3,7,[11][12][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

Control Against Armyworm Caterpillars on the Coastal of the Rio Nunez-Boke, Republic of Guinea

Mamadou

Ali

Ratemo

et al. 2015

Journal of Asian Scientific Research

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“…Stored grain pest damage differed in different stored grains, including rice causing serious economic loss nationally [7]. Because of the high adoption of improved varieties in Benin such as NERICA and the subsequent high production between 0.5 and 1.1 t per ha depending of the country in SSA [8], grain storage has gradually become a common practice by farmers [9]. Consequently, storage losses due to insect pests, which were not considered as key issue in Benin, began a serious threat for producers, processors and traders.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, storage losses due to insect pests, which were not considered as key issue in Benin, began a serious threat for producers, processors and traders. Also, Togola et al [9] reported that, the incidence of insect pest to the different farmer storage units depended on the storage duration and regions where samples were collected. Thus, economic losses in paddy storage are estimated at 2 FCFA (Franc of the African Financial Community) for each kilo of rice stored over 2 -3 months.…”

Section: Introductionmentioning

confidence: 99%

Influence of Agro Ecology on Rice Varietal Resistance to <i>Sitophilus oryzae</i> (Coleoptera: Curculionidae) and <i>Sitotroga cerealella</i> (Lepidoptera: Gelechiidae) in Benin

Santos¹,

Agbangla²,

Chougourou³

et al. 2015

AJPS

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The rice weevil, Sitophilus oryzae (L.) and the Angoumois grain moth, Sitotroga cerealella (Oliv.), are serious pests of stored rice in Africa. This study aims to evaluate the influence of growing environments to rice resistance to these pests. Thus, eleven rice varieties including 6 upland NERICA, 2 Oryza glaberrima and 3 O. sativa were grown at four agro ecological zones of Benin. After harvest, samples of 1500 grains of each genotype were infested with 20 adults of S. oryzae (10 males and 10 females) and 1500 additional ones were infested with 50 eggs of S. cerealella. Results showed significant effect of agro ecological zones on pest incidence and on varietal resistance as well. O. glaberrima varieties (TOG 5681 and CG 14) were the most resistant in each location whereas the resistance of NERICA and Sativa varieties varied from tolerant to susceptible according to the growing ecology. This result highlights the impact of growing environment on rice resistance status and will provide the best advice to farmers on how to choose best genetic material according to cropping ecology.

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Economic Losses from Insect Pest Infestation on Rice Stored on-farm in Benin

Cited by 25 publications

References 8 publications

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Control Against Armyworm Caterpillars on the Coastal of the Rio Nunez-Boke, Republic of Guinea

Influence of Agro Ecology on Rice Varietal Resistance to <i>Sitophilus oryzae</i> (Coleoptera: Curculionidae) and <i>Sitotroga cerealella</i> (Lepidoptera: Gelechiidae) in Benin

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Economic Losses from Insect Pest Infestation on Rice Stored on-farm in Benin

Cited by 25 publications

References 8 publications

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Control Against Armyworm Caterpillars on the Coastal of the Rio Nunez-Boke, Republic of Guinea

Influence of Agro Ecology on Rice Varietal Resistance to &lt;i&gt;Sitophilus oryzae&lt;/i&gt; (Coleoptera: Curculionidae) and &lt;i&gt;Sitotroga cerealella&lt;/i&gt; (Lepidoptera: Gelechiidae) in Benin

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Influence of Agro Ecology on Rice Varietal Resistance to <i>Sitophilus oryzae</i> (Coleoptera: Curculionidae) and <i>Sitotroga cerealella</i> (Lepidoptera: Gelechiidae) in Benin