Evaluation of Plant Powders and Cooking Oils against Maize Weevil, &lt;i&gt;Sitophilus zeamais&lt;/i&gt; M. (Coleopteran: Curculionidae) under Laboratory Conditions

Gurmu, Fekadu; Waktole, S.; Santiago, Dante

doi:10.5376/me.2012.03.0002

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…This result supports the findings of Musundire et al (2015) stated that D. stramonium and T. minuta successfully reduced the insect infestation and showed no adverse effect on seed germination. This result also supports the findings of Fekadu et al (2012).…”

Section: Effect Of Botanicals and Chemical On Mortality Of Maize Weevilsupporting

confidence: 92%

“…Moisture content of the maize seed was maintained 11-12% following procedures described at the Manual of Seed Quality control (2006). The maize grain was graded manually and cleaned of broken kernels and debris (Fekadu et al, 2012). Before artificial infestation of maize seeds with maize weevil, the maize seeds were dried in the sun for few days.…”

Section: Collection and De-infestation Of Maize Seedsmentioning

confidence: 99%

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Bio-Rational Management of Maize Weevil, Sitophilus Zeamais in Maize (Zea Mays) Seeds

Alam¹,

Ahmad²,

Rahman³

et al. 2020

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Bangladesh is a sub-tropical and humid country. That is why, the infestation of insects during storage is very common here. The maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), locally known as “Katta Poka”, is one of the most serious cosmopolitan pest of stored cereal grain, especially of maize (Zea mays L.), in tropical and subtropical regions including Bangladesh. Considering the issue, the study was conducted in the laboratory of Department of Entomology, Bangladesh Agricultural University (BAU) following completely randomized design (CRD) with three replications to evaluate the efficacy of four locally available botanicals and chemicals. The botanicals used were: Neem (Azadirachta indica) leaf, Datura (Datura stramonium) leaf, Nishinda (Vitex negundo L) leaf and Garlic (Allium sativum L.) tablet powders at three different doses (3, 4 and 5gm)/100g of grain seed against maize weevil. The results revealed that all test materials at 5g doses exhibited higher mortality action against maize weevil while at 3g doses it gave the lowest percentage efficacy. Powdered leaves of neem and datura at 4 and 5gm were showed statistical significant (P<0.01) differences while powdered leaves of nishinda at the similar rates were observed with moderately effectiveness and powdered tablet of garlic gave the lowest mortality rate within 28 days of exposure in all tested doses. These findings suggest that botanical treatments exerted better mortality of maize weevil and reduced maize seed weight loss with higher germination capacity compared to the untreated control. It was also observed that the highest mortality percentage, lowest seed weight loss and highest germination capacity in the seeds which were treated with Sevin 85SP at the rate of 0.25g/100g maize seeds. Maize grains treated with botanicals, indicated that insect reproduction and development were impaired in all botanical pesticides. It is suggested that datura leaf, neem leaf powder can be used as good alternatives to chemical insecticides against S. zeamays due to their higher mortality, lower seed weight losses and higher germination capacity.

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Section: Effect Of Botanicals and Chemical On Mortality Of Maize Weevilsupporting

confidence: 92%

Section: Collection and De-infestation Of Maize Seedsmentioning

confidence: 99%

Bio-Rational Management of Maize Weevil, Sitophilus Zeamais in Maize (Zea Mays) Seeds

Alam¹,

Ahmad²,

Rahman³

et al. 2020

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Fatty acid composition and biological activity of four olive oils from Kabylia (Algeria) against Rhyzopertha dominica (Coleoptera: Bostrychidae) infesting wheat seeds

Kerbel¹,

Abdelli²,

Azzi³

et al. 2021

Studia UBB Biologia

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The use of conventional insecticides is one of the most widely used methods of controlling pests of stored grains. But the presence of toxic residues in treated commodities and the emergence of insect resistant strains are becoming a growing concern. Olive oil is well known throughout the world for its benefits to human health, but little known for its biological activity against insect pests.The aim of this work is to study the fatty acid composition and the insecticidal activity of oils according to origin of plantation, against one of the main insect pests of stored grain Rhyzopertha dominica (Coleoptera: Bostrychidae). The olive oils were obtained using an oleodoser from olives of the 'Chemlal' variety harvested in 4 olive groves in Kabylia (Algeria) and the analysis of the fatty acid composition was carried out by gas chromatography. The main fatty acids found are oleic, palmitic and linoleic acids. Biological tests conducted under laboratory conditions, at a temperature of 30±1°C and a relative humidity of 70 ± 5 %, revealed that the 4 olive oils, applied on soft wheat grains, showed a contact toxicity against R. dominica. The toxicity of the oils varied as a function of the dose and the duration of treatments. After 24 h of exposure, all oils tested at the highest dose (0.4 mL/25 g) were found to be highly toxic to adults of R. dominica, with mortality rates ranging from 72.5 to 95 %. The toxicity of the 4 oils based on the LD50 (mL/25 g) values for 24 h mortality is established as follows: Maatkas (213), Bachloul (232), Tadmait (234) and M'Chedellah (263). The number of the F1 offspring decreases as the dose of oil is increased to reach zero with the highest dose, for all treatments. All oils tested completely preserve soft wheat seeds from R. dominica attacks using the same highest dose. On the other hand, results also revealed that treatments with olive oil do not affect the germination capacity of soft wheat seeds.

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Efficacy of Botanical Extracts against Termites, Macrotermes spp., (Isoptera: Termitidae) under Laboratory Conditions

Addisu¹,

Mohamed²,

Waktole³

2014

International J. of Agricultural Research

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Evaluation of Plant Powders and Cooking Oils against Maize Weevil, <i>Sitophilus zeamais</i> M. (Coleopteran: Curculionidae) under Laboratory Conditions

Cited by 5 publications

References 24 publications

Bio-Rational Management of Maize Weevil, Sitophilus Zeamais in Maize (Zea Mays) Seeds

Bio-Rational Management of Maize Weevil, Sitophilus Zeamais in Maize (Zea Mays) Seeds

Fatty acid composition and biological activity of four olive oils from Kabylia (Algeria) against Rhyzopertha dominica (Coleoptera: Bostrychidae) infesting wheat seeds

Efficacy of Botanical Extracts against Termites, Macrotermes spp., (Isoptera: Termitidae) under Laboratory Conditions

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