Comparative efficacy of Jatropha curcas L. leaf powder for the control of Callosobruchus subinnotatus (Pic) on stored bambara nut Vigna subterranea (L.) Verdcourt

The research was conducted in the year 2016 at the Entomology laboratory of the Department of Crop Protection, Bayero University Kano to assess the biocidal and damage reduction effect of leaf powder from physic nut, Jatropha curcas L. caused by Callosobruchus subinnotatus (Pic) on stored bambara nut, Vigna subterranea (L.) Verdcourt. Also, the study aimed at comparing the effectiveness of the plant product with conventional chemical insecticide (pirimiphos-methyl). Factorial experiment of 4×2 levels (leaf powder at the rates of 0, 0.5. 1.0 and 1.5 g, with and without addition of the synthetic chemical at 0.01 g/20 g bambara nut seed) were laid out in a Completely Randomized Design and repeated three times. Results showed that, admixture of 0.5g leaf powder proved effective in causing high biocidal effect and reduced seed damage. However, this was statistically same with seeds treated with 1.0g leaf powder. Comparatively, all treatments were statistically different from the untreated control seeds but similar with the check treatment. Highly significant (p<0.001) persistent effect was observed in seeds treated with 1.5g leaf powder mixed with 0.5g seed powder at 60 days after treatment (DAT) without any negative effect on seed viability. This was also statistically similar in all other treatments apart from the untreated control. In conclusion, appreciable level of protection on bambara nut seeds was achieved using leaf and seed powder of J. curcas applied at different mixture rates and singly. Therefore, it is recommended that for effective management of C. subinnotatus infesting bambara nut, farmers could use 1.5 g leaf powder or 1.0 g seed powder per 20 g bambara nut seeds singly each. Alternatively, 0.5:1.0, 1.0:1.0 or 1.5:0.5 leaf/seed combinations could be used for safe bambara nut storage.Keywords: Biocidal, Callosobruchus subinnotatus, bambara nut, Jatropha, damage, insecticide

Download Full-text

Bioactive effect of Jatropha curcas L. leaf product on Callosobruchus subinnotatus (Pic) infesting stored bambara nut, Vigna subterranea (L.) Verdcourt

Bayero Journal of Pure and Applied Sciences ◽

10.4314/bajopas.v11i1.21 ◽

2018 ◽

Vol 11 (1) ◽

pp. 120-125

Author(s):

S.A. Dattijo ◽

B.I. Ahmed ◽

S.A. Adebitan ◽

U.A. Gurama ◽

B.I. Bichi

Keyword(s):

Jatropha Curcas ◽

Crop Protection ◽

Vigna Subterranea ◽

Chemical Insecticide ◽

Jatropha Curcas L ◽

Randomized Design ◽

Pirimiphos Methyl ◽

Leaf Powder ◽

Standard Rate ◽

Callosobruchus Subinnotatus

The research was conducted in the year 2016 at the Entomology laboratory of the Department of Crop Protection, Bayero University Kano to assessed the bioactive effect of physic nut, Jatropha curcas L. leaf powder on Callosobruchus subinnotatus (Pic) infesting stored bambara nut, Vigna subterranea (L.) Verdcourt. The study was also aimed at comparing the effectiveness of the leaf powder with conventional chemical insecticide (pirimiphos-methyl). In a 2×2 factorial experiment, the leaf powder and pirimiphos-methyl were admixed with bambara nut seeds. The first factor (leaves) had two (2) levels (0.0 and 0.5 g/20 g seed) while the second factor (pirimipos-methyl) also had two levels, with and without the standard rate of application (0.00 and 0.01 g/20 g). These were laid out in a Completely Randomized Design and repeated three times. Results showed fumigant, repellant and contact effects were best exhibited in seeds treated with the leaf powder admixed at the rate of 0.5g, but was not significantly different from seeds treated with pirimiphos- methyl. In conclusion, appreciable level of protection on bambara nut seeds was achieved using the leaf powder of J. curcas applied at 0.5 g/20 g bambara nut seeds during storage.Keywords: Bioactive, Callosobruchus subinnotatus, bambara nut, Jatropha, fumugant

Download Full-text

Comparative Efficacy of Jatropha curcas L. Seed Powder for the Control of Callosobruchus subinnotatus (Pic) on Stored Bambaranut, Vigna subterranea (L.) Verdcourt

Nigeria Journal of Entomology ◽

10.36108/nje/0202/63.01.21 ◽

2020 ◽

Vol 36 (1) ◽

pp. 103-112

Author(s):

S. A Dattijo

Keyword(s):

Jatropha Curcas ◽

Adult Mortality ◽

Control Treatment ◽

Vigna Subterranea ◽

Jatropha Curcas L ◽

Synthetic Insecticide ◽

Seed Damage ◽

Randomized Design ◽

Callosobruchus Subinnotatus ◽

Better Than

The study was to assess insecticidal effectiveness of Jatropha curcas L. seed powder on Callosobruchus subinnotatus (Pic) infesting stored bambaranut, Vigna subterranea (L.) Verdcourt. The experiment was laid out in a factorial design of 4×2 levels (seed powder at the rates of 0.0, 0.5. 1.0 and 1.5 g, with and without addition of the synthetic insecticide at 0.01 g/20 g bambaranut seed) and laid out in a completely randomized design, in three replicates. Results obtained showed lowest oviposition, progeny emergence and seed damage (5.33, 1.58 and 1.83, respectively) in bambaranut seeds admixed with 1.0 g of the seed. Although, statistically similar to all other treatments, it was significantly (P≤0.001) better than the control treatment in which 33.83 eggs were laid and 24.08 adults emerged from 22.92 emergence holes. In addition, at six (6) days after treatment, highest adult mortality rate (99.17%) similar to that (99.17%) obtained in the synthetic insecticide was also recorded in seeds treated with 1.0 g seed powder. However, all other treatments were also significantly better than the control, in which 72.50% of the introduced bruchids died. Comparatively, lowest rate of seed damage (6.68%) and lasting effect was also obtained with the addition 1.0 g seed powder. In conclusion, appreciable level of protection on bambaranut seeds was achieved using seed powder of J. curcas. Therefore, it is recommended that for effective management of C. subinnotatus infesting bambaranut, farmers could use 5 Kg seed powder on 100 Kg bambaranut seeds.

Download Full-text

Bioefficacy of Some Botanicals Against Gum Arabic Borer, Bruchus baudni Caill (Coleoptera: Bruchidae) on Stored Senegalia senegal Seeds

Nigeria Journal of Entomology ◽

10.36108/nje/0202/63.01.40 ◽

2020 ◽

Vol 36 (1) ◽

pp. 32-45

Author(s):

B. S. Wudil

Keyword(s):

Developmental Stages ◽

Insect Pests ◽

Crop Protection ◽

Gum Arabic ◽

Chemical Insecticide ◽

Aluminum Phosphide ◽

Egg Hatchability ◽

Randomized Design ◽

Leaf Powder ◽

Senegalia Senegal

The use of bio-pesticides has proven to be successful approach in controlling agricultural insect pests. Study was conducted in the Laboratory of the Department of Crop Protection, Faculty of Agriculture, Bayero University, Kano to study the Biology of Bruchus baudni on treated Senegalia senegal seeds. Seed oils and leaf powders of K. senegalensis and M. oleifera at three concentrations each, a chemical insecticide (Aluminum phosphide as standard check) and a control were laid out in a Completely Randomized Design (CRD) and replicated three times. Data collected were oviposition, egg hatchability and developmental stages. The results indicated significant reduction in the number of eggs laid (1% and 1.38%) and hatchability (0.00% and 0.57%) on both seed oil and leaf powder treatments, respectively; however, the control recorded the highest eggs laid (99.9%) and number of emerged B. baudni (99.2%). The present findings showed that seeds and leaves of mahogany and moringa were effective as protectant against some of the development stages of B. baudni. Therefore, based on the present results, mahogany and moringa seeds and leaves could be explored to replace the synthetic insecticides in the management of B. baudni especially as components of integrated pest management strategy.

Download Full-text

Insecticidal Efficacy of Raw Diatomaceous Earth, and Jatropha curcas Seed Powder Alone, and in Combination against Callosobruchus subinnotatus (Pic) [Coleptera: Chrysomelidae) in Stored Bambara Nut (Vigna subterranea L. Verdc.) Seeds

Nigeria Journal of Entomology ◽

10.36108/nje/7102/33(0190) ◽

2017 ◽

Vol 33 (1) ◽

pp. 73-82

Author(s):

A AUDU ◽

◽

N.D IBRAHIM ◽

M LAWAL,

Keyword(s):

Jatropha Curcas ◽

Diatomaceous Earth ◽

Vigna Subterranea ◽

Insecticidal Efficacy ◽

Callosobruchus Subinnotatus

Download Full-text

Pertumbuhan Beberapa Genotipe Jarak Pagar (Jatropha Curcas L.) di Tanah Masam

Buletin Agrohorti ◽

10.29244/agrob.v5i2.16806 ◽

2017 ◽

Vol 5 (2) ◽

pp. 251-263

Author(s):

Indah Retnowati ◽

Memen Surahman

Keyword(s):

Jatropha Curcas ◽

Jatropha Curcas L

Indonesia memiliki banyak tanah masam, tetapi penggunaan masih sangat sedikit karena kandungan nutrisi tanah masam rendah. Sementara itu, jarak pagar merupakan tanaman yang dapat tumbuh di berbagai jenis tanah (termasuk lahan marjinal) dan penggunaannya sebagai bahan baku biodiesel. Oleh karena itu, perlunya penelitian mengenai pertumbuhan jarak pagar pada tanah masam sebagai upaya untuk mengembangkan jarak pagar dan penggunaannya di Indonesia.Untuk memulai upaya, penelitian tentang berbagai genotipe jarak pagar di tanah masam telah dilakukan. Tujuan dari penelitian ini yaitu mempelajari genotipe jarak pagar yang berpotensi untuk tanah masam. Penelitian ini dilakukan di UPTD Pengembangan Teknologi Lahan Kering Singabraja, Kecamatan Tenjo, Bogor, Jawa Barat, dari November 2010-Agustus 201. Penelitian ini menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) dengan satu faktor yaitu genotipe. Hasil penelitian menunjukkan berbagai perbedaan pada pertumbuhan diantara genotipe-genotipe jarak pagar. Secara umum, ada lima genotipe jarak pagar yang terbaik di tanah masam (pH 5.0) yaitu Medan I-5-1, Dompu, IP-2P-3-4-1, Sulawesi, dan Bima M.

Download Full-text