Efficacy of Silicosec, filter cake and wood ash against the maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) on three maize genotypes

Demissie, Girma; Tefera, Tadele; Tadesse, Abraham

doi:10.1016/j.jspr.2008.01.001

Cited by 56 publications

(28 citation statements)

References 10 publications

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“…To assess the viability of seeds, seed germination test was similarly conducted according to the procedure described earlier by Demissie et al [3] where 30 undamaged grains of each maize variety seed in each jar were randomly selected. The number of germinated seeds was recorded after 10 days.…”

Section: Seed Germinationmentioning

confidence: 99%

“…In Cameroon, maize is the main food crop and S. zeamais alone has already caused 80 % of grain damage during the period of storage [2]. Demissie et al [3] reported that once the grains are damaged, this will reduce the market value, the percentage of germination, the weight and the nutritional value. That is why in Africa, effective and cheap methods are needed to reduce the damage caused by S. zeamais and so, to reduce food insecurity [3].…”

Section: Introductionmentioning

confidence: 99%

“…Demissie et al [3] reported that once the grains are damaged, this will reduce the market value, the percentage of germination, the weight and the nutritional value. That is why in Africa, effective and cheap methods are needed to reduce the damage caused by S. zeamais and so, to reduce food insecurity [3]. Infestation control of stored grains pests is primarily achieved by the use of synthetic chemical insecticides.…”

Section: Introductionmentioning

confidence: 99%

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Use of NeemPro®, a neem product to control maize weevil Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on three maize varieties in Cameroon

et al. 2015

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Background: Sitophilus zeamais is a key pest of stored maize causing serious economic damage. The predominant control of this pest is the use of synthetic residual pesticides, which have adverse effects on consumers and environment. The use of phytochemicals for controlling storage pests constitutes an attractive alternative to synthetic products, since plant may be more biodegradable and safer. The aim of this study was to evaluate the activity of NeemPro ® against the maize weevil on three maize varieties in the laboratory and the effect of the insecticide on seed germination. Results: NeemPro® relatively killed all the exposed weevils at 6 g/kg within 14 days with LC 50 of 0.04, 0.07 and 0.11 g/ kg in CLH103, CMS8501 and SHABA varieties, respectively, as observed in Malagrain. Treatments completely hindered or significantly reduced progeny emergence, percentage grain damage, grain weight losses, but did not affect grain germination after 4 months of storage. However, these parameters were lesser in SHABA variety. Conclusions: NeemPro® may be used as alternative to Malagrain for the protection of stored maize against the infestation of S. zeamais.

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Section: Seed Germinationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of NeemPro®, a neem product to control maize weevil Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on three maize varieties in Cameroon

et al. 2015

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“…These were sieved to remove larger materials This inert dusts were tested in integration with others because, there was reported cases that indicate inert materials involving clays have been effective on stored-product insects at high rates and suggested as they might be viable protectants grain in underdeveloped countries (De Lima, 1987;Demissie et al, 2008). Besides, with current health, environmental and other concerns of insecticides as well as the desire for residue free food grains and their products by people, they have been receiving attentions.…”

Section: Inert Dustsmentioning

confidence: 99%

Integration of botanicals and inert dusts with resistant varieties against Sitophilus zeamais (Motsch.) of stored maize (Zea mays) in Ethiopia

Hiruy¹,

Getu²

2018

J. Entomol. Nematol.

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Dosage rates of 0.625, 1.25 and 2.5% of the leaves powder of Calpurnia aurea and Milletia ferruginea, and red and white inert dusts that were admixed with the 100 g of three resistance maize varieties were tested as protectant against maize weevils under laboratory condition. Significantly (p < 0.05) higher parental adult weevil's mortality were recorded in all treatments of integration than untreated check at almost all days (except first day) after treatment. Mortality effects of the tested integrated components were also increased both with increased dosage and days after treatment. The mortality also became 100% in all treatments of integration applied at all rates, following 12 days of treatment application likewise the positive control. All treatments of integration applied at all rates also induced significantly (P < 0.05) higher (≥ 60.31%) protection of maize grains against F1 progeny emergence, grain damage (≤ 6.67) and weight loss (≤ 1.12) by S. zeamais than negative control. Besides, 100% inhibition of F1 progeny emergence, no percent grain damage and weight loss of maize grains were also observed in all of the three treatments of integration applied at dosage of 10% likewise also for that of the positive control. Therefore, integration of the aforementioned botanicals and inert dusts with resistant varieties applied at 2.5% and above (5 and 10%) rates were potent in preventing maize grains against maize weevils attack and could be used in the management of maize weevils as ecologically sound, safe and cheap weevil's management alternatives under farmer's storage conditions.

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“…Postharvest maize weevil infestation commences in the field but most damage occurs during storage (Demissie et al, 2008;Goftishu and Belete, 2014). We therefore require control measures that are effective both in the field level and under storage.…”

Section: Introductionmentioning

confidence: 99%

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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Efficacy of Silicosec, filter cake and wood ash against the maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) on three maize genotypes

Cited by 56 publications

References 10 publications

Use of NeemPro®, a neem product to control maize weevil Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on three maize varieties in Cameroon

Use of NeemPro®, a neem product to control maize weevil Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on three maize varieties in Cameroon

Integration of botanicals and inert dusts with resistant varieties against Sitophilus zeamais (Motsch.) of stored maize (Zea mays) in Ethiopia

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

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