Effectiveness of Spinosad (Naturalytes) in Controlling the Cowpea Storage Pest, Callosobruchus maculatus (Coleoptera: Bruchidae)

2010 ◽  
Vol 103 (1) ◽  
pp. 203-210 ◽  
Author(s):  
Antoine Sanon ◽  
Niango M. Ba ◽  
Clementine L. Binso-Dabire ◽  
Barry R. Pittendrigh
Keyword(s):  
Callosobruchus Maculatus ◽  
Storage Pest

Screening and Biochemical Analysis on Blackgram Genotypes for Resistance against Storage Pest Bruchine [Callosobruchus maculatus (F.)]

2021 ◽  
Author(s):  
S. Ragul ◽  
N. Manivannan ◽  
K. Iyanar ◽  
N. Ganapathy ◽  
G. Karthikeyan
Keyword(s):  
Biochemical Analysis ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Developmental Time ◽  
Developmental Period ◽  
Ms Analysis ◽  
Randomized Design ◽  
Biochemical Components ◽  
Storage Pest ◽  
Confirmatory Trial

Background: Blackgram [Vigna mungo (L.) Hepper] is a rich source of protein. It is one of the major crops essentially involved in daily human diets. However, storage pest bruchine [Callosobruchus maculatus (F.)] is a major production constraint for legumes. A research was formulated to assess the bruchine resistance in 20 blackgram genotypes along with the biochemical analysis to find out the active biochemical components responsible for the resistance activity.Methods: The experiment was carried out during August- October, 2019 at Entomology Laboratory, National Pulses Research Center, Vamban, India. The experimental material comprised of 20 blackgram genotypes which were screened for bruchine resistance. Further, confirmatory trial was conducted with selected resistant entries and highly susceptible entries during October- December, 2019. Both experiments were carried out in completely randomized design and replicated three times. GC-MS analysis on the resistant and susceptible entries were performed to ascertain the active biochemical components conferring resistance.Result: Among the genotypes, TU 68 had comparatively late developmental time (days), less number of adult emergence, higher mean developmental period (days), less susceptibility index, less seed damage (%) and less seed weight loss (%). Genotype TU 68 was found to be resistant in the confirmatory trial also. Less number of adult emergence and higher mean developmental period indicated the delayed developmental period which is a mechanism of bruchine resistance. GC-MS analysis on resistant (TU 68) and susceptible (MDU 1) genotypes indicated the presence of active biochemical compounds with insectifuge activity in TU 68. Hence, TU 68 could be utilized in the hybridization programmeas donor for bruchine resistance.

The effect of leguminous plant species onCallosobruchus maculatus(Coleoptera: Bruchidae) and its egg parasitoidUscana lariophaga(Hymenoptera: Trichogrammatidae)

1998 ◽  
Vol 88 (1) ◽  
pp. 93-99 ◽  
Author(s):  
A. van Huis ◽  
M. de Rooy
Keyword(s):  
Sex Ratio ◽  
Plant Species ◽  
Nutritional Quality ◽  
Development Time ◽  
Callosobruchus Maculatus ◽  
Egg Parasitoid ◽  
The Other ◽  
Leguminous Plant ◽  
Trade Off ◽  
Storage Pest

AbstractThe performance of the egg parasitoidUscana lariophagaSteffan was studied when reared on eggs of the bruchid storage pest,Callosobruchus maculatus(Fabricius) developing in seeds of cowpea, chickpea and pigeonpea. The beetle laid more and larger eggs on pigeonpea than on cowpea and chickpea, indicating that there was not a trade-off between number and size of the eggs. The bruchid larvae reared on pigeonpea exhibited a longer development time and a higher mortality than those reared on cowpea and chickpea. The resulting males weighed less than those reared on cowpea and chickpea. The trichogrammatidU. lariophagaparasitized more eggs whenC. maculatuswas reared on chickpea than when reared on the other hosts. Parasitoid larvae developed slowest and had the highest mortality in eggs ofC. maculatusreared on pigeonpea compared to those reared on cowpea and chickpea; the sex ratio (% of females) of the resulting adults was also higher. The high mortality and long development time ofC. maculatusreared on pigeonpea indicated that this legume was less favourable toC. maculatusthan chickpea or cowpea. This was probably also true for the parasitoid since the mortality was higher and development longer in eggs ofC. maculatusreared on pigeonpea compared to those reared on cowpea and chickpea. Therefore, when host eggs were larger and of lower nutritional quality, the proportion of female egg parasitoids was greater.

scholarly journals Impregnating Storage Materials with Neem Seed Oil against Callosobruchus maculatus Fabricus (Coleoptera: Chrysomelidae: Bruchinae) in Stored Bambara Seeds (Vigna subterranean L.) Verdcourt

2016 ◽  
Vol 52 ◽  
pp. 28-42
Author(s):  
F.O. Ojiako ◽  
Usman Zakka ◽  
S.A. Dialoke ◽  
C.E. Ahuchaogu ◽  
O.M. Nnebue ◽  
...  
Keyword(s):  
Seed Oil ◽  
Callosobruchus Maculatus ◽  
Storage Materials ◽  
Randomized Design ◽  
Insecticidal Action ◽  
Neem Seed Oil ◽  
Polyethylene Bags ◽  
Seed Application ◽  
Plastic Containers ◽  
Storage Pest

Neem (AzadirachtaindicaA. Juss.) seed oil (NSO) is acclaimed to have some form of insecticidal action against more than 400 insect species in at least 10 to 13 orders. The main delimitating factor in the wide acceptance of this well tested plant as a storage pest bioinsecticide is its foul sulfurous smell and bitter taste which impinges on the acceptability and marketability of treated produce. To ameliorate this shortfall, therefore, an assessment of the potential of impregnating different storage materials; [plastic containers (PLC), Bagco bags (BCB), Black polyethylene bags (BPB), white polyethylene bags (WPB) and calico bags (CAB)], with NSO in the managementofCallosobruchus maculatus(F.) in stored Bambara seeds (Vigna subterraneaL.), was conducted in the laboratory. The experiment was laid out in a 4 x 5 factorial arrangement fitted into a completely randomized design (CRD). Factor A represented four concentrations of NSO (0.00, 0.50, 1.00, 1.50 ml/ 100g seed), while factor B were the five different storage materials. The treatments were replicated four times Generally, seeds stored with impregnated storage materials recorded more bruchids mortality, reduced oviposition rate, decreased number of emerged insects (F1and F2) and had less damaged seeds (and hence decreased weevil perforation index, WPI) than the control. Concentration performance was dose related though the highest (1.50 %) did not differ statistically (P=0.05) from the medium (1.00 %) concentration. Seeds stored in BPBs had the highest mortalities, but recorded the lowest in number of eggs oviposited, egg/seed ratio, F1, F2and cumulative emergence, respectively. These results differed significantly (P=0.05) with the seeds stored in other materials. BPB stored seeds were also the least damaged with lowest exit holes/seed, seeds with holes and WPI, respectively. The performance of BPB was closely followed by seeds stored in WPBs in all the parameters tested. Conversely, seeds stored in BCBs recorded the lowest mortalities but the highest in all other parameters assessed. Other storage materials (PLC and CAB) had better storage quality than BCB materials. Impregnation of storage materials with NSO could be a better option to direct seed application with its attendant drawback. The use of NSO impregnated black polyethylene bags, within the scope of the storage materials screened, to control damage byC. maculatusin stored Bambara seeds, should be encouraged.

Screening of Mungbean [Vigna radiata (L.) Wilczek] Genotypes against Bruchid (Callosobruchus maculatus) Attack to Reduce Postharvest Losses

2020 ◽  
Author(s):  
Sanhita Ghosh ◽  
Anindita Roy ◽  
Sabyasachi Kundagrami
Keyword(s):  
Host Resistance ◽  
Initial Phase ◽  
Seed Quality ◽  
Callosobruchus Maculatus ◽  
Choice Test ◽  
Resistant Genotype ◽  
Moderately Resistant ◽  
Test Result ◽  
Grain Losses ◽  
Storage Pest

Background: Mungbean is an important pulse crop due to its high protein content. Bruchid is a major storage pest which causes deterioration of seed quality as well as quantity. The grain losses directly affect the agricultural economy and also the human health. Therefore, this issue has to be addressed with high priority. Methods: To address this issue, we have initiated a study to screen the fifty-two mungbean genotypes against the bruchid attack. The initial phase of the experiment was carried out from 2015 to 2017 in the Department of Genetics and Plant Breeding, University of Calcutta to the laboratory condition through the no choice test. Result: Using the parameter bruchid susceptibility index according to Dobie, four resistant, ten susceptible, seventeen moderately resistant and twenty-one moderately susceptible mungbean genotypes were identified. The host resistance genotype HUM-8, PM-11-51, APDM-84, VC-639 are identified as the most promising resistant genotype. 

Effect of host quality of Callosobruchus maculatus (Coleoptera: Bruchidae) on performance of the egg parasitoid Uscana lariophaga (Hymenoptera: Trichogrammatidae)

2005 ◽  
Vol 95 (4) ◽  
pp. 341-347 ◽  
Author(s):  
J. Spitzen ◽  
A. van Huis
Keyword(s):  
Egg Size ◽  
Callosobruchus Maculatus ◽  
Intrinsic Rate ◽  
Female Offspring ◽  
Egg Parasitoid ◽  
Intrinsic Rate Of Increase ◽  
Cowpea Seeds ◽  
Rate Of Increase ◽  
Storage Pest

AbstractDevelopment and reproductive success of the solitary egg parasitoid Uscana lariophaga Steffan were examined after development in eggs of the bruchid storage pest Callosobruchus maculatus Fabricius reared at either low or high densities on cowpea seeds and laid at day 1 and 4 of maternal life. Both bruchid larval competition and maternal age negatively affected egg size, but the latter more than the former. Uscana lariophaga reared in small hosts developed slower, were smaller and produced fewer eggs compared to parasitoids reared in large hosts. Fecundity of the parasitoid was heavily influenced by host egg size. This was reflected in the values for the intrinsic rate of increase of U. lariophaga, which differed for wasps that developed in host eggs laid by bruchid females of different age. Wasps allocated marginally more female offspring to larger hosts.

Insecticidal Compound from Himatanthus drasticus Latex against Cowpea Infestation by Callosobruchus maculatus (Coleoptera: Chrysomelidae)

2021 ◽  
Author(s):  
Francimauro S. Morais ◽  
Kirley M. Canuto ◽  
Paulo R. V. Ribeiro ◽  
Alison B. Silva ◽  
Otilia D. L. Pessoa ◽  
...  
Keyword(s):  
Callosobruchus Maculatus

scholarly journals Perforation index assessment of cowpea seeds against cowpea bruchid, Callosobruchus maculatus (Fabricius) [Coleoptera: Chrysomelidae], infestation using Piper guineense

2020 ◽  
Vol 81 (1) ◽  
Author(s):  
Kayode David Ileke ◽  
Jacobs Mobolade Adesina ◽  
Luke Chinaru Nwosu ◽  
Abimbola Olagunju
Keyword(s):  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Adult Mortality ◽  
Contact Toxicity ◽  
Toxicity Assay ◽  
Piper Guineense ◽  
Cowpea Seeds ◽  
Leaf Powder ◽  
Human Use ◽  
Seed Extracts

Abstract Background Powders and extracts of Piper guineense seeds and leaves were assessed for insecticidal activities against Callosobruchus maculatus in the laboratory at temperature and relative humidity of 29.6 °C and 75.9%, respectively. Bioactive compounds in P. guineense leaves and seeds were also investigated. The powders were tested at rates 1.0, 2.0 and 4.0 g/20 g cowpea seeds while extracts were tested at 1.0, 2.0 and 3.0%. Results Results of contact toxicity assay of the seed powder caused 100% adult mortality at 96 h post-treatment period whereas leaf powder evoked 90% adult mortality within the same period at concentration of 1.0 g/20 g cowpea seeds. Low adult emergence was observed on cowpea seeds treated with 1 g of seed powder with percentage adult emergence of 10.0% and inhibition rate (IR) of 97.5%. Beetle Perforation Index (BPI) obtained from treated cowpea seeds was significantly different (P < 0.05) from BPI of untreated seeds. Extracts of P. guineense seed were more toxic than seed powder. Piper guineense seed extract caused 87.5% adult mortality of C. maculatus while leaf extract caused 70.0% adult mortality within 24 h of infestation at concentration of 1%. Progeny development of C. maculatus was completely inhibited in cowpea treated with 2% and 3% leaf and seed extracts of P. guineense. β-Pinene was the most abundant active compound in P. guineense seed (55.6%) and leaf (48.4%). β-Phellandrene occurred 38.2% in seeds while Ocimene had the least value of 0.2% in seed and 0.5% in leaf. Conclusion The study showed that P. guineense seed powder and extracts were more effective than leaf powder and extract. Utilization of plant products as alternative to synthetic insecticides in protecting cowpea seeds against C. maculatus should be encouraged for enhanced food safety and security. Piper guineense is used as spice and medicine and interestingly safe for human use.

scholarly journals A novel cysteine proteinase inhibitor from seeds of Enterolobium contortisiliquum and its effect on Callosobruchus maculatus larvae

2021 ◽  
Vol 25 ◽  
pp. 100876
Author(s):  
Natalia N.S. Nunes ◽  
Rodrigo S. Ferreira ◽  
Leonardo F.R. de Sá ◽  
Antônia Elenir A. de Oliveira ◽  
Maria Luiza V. Oliva
Keyword(s):  
Proteinase Inhibitor ◽  
Callosobruchus Maculatus ◽  
Cysteine Proteinase ◽  
Cysteine Proteinase Inhibitor
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