The inheritance of seed resistance to Callosobruchus maculatus F. in cowpea (Vigna unguiculata L. Walp.). II. Analyses of percentage emergence and emergence periods of bruchids in F4 seed generation of two reciprocal crosses

1983 ◽  
Vol 34 (6) ◽  
pp. 697 ◽  
Author(s):  
R Redden
Keyword(s):  
Vigna Unguiculata ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
The Other ◽  
Recessive Character ◽  
Reciprocal Crosses ◽  
Bruchid Resistance ◽  
F2 Generation ◽  
Mean Time ◽  
Seed Resistance

Seed from F3 generation plants of two reciprocal crosses were evaluated for bruchid resistance, over 28 F3 families of four plants each plus an additional five plants each in 10-11 families. The variables, percentage adult emergence for a specified period and mean time to emergence, agreed with respect to describing segregation in the resistant, intermediate and susceptible categories. Resistance was expressed as a recessive character. No differences between families from reciprocal crosses were detected. There was evidence for digenic control of resistance in one cross and for monogenic control in the other, in conjunction with one, or more, modifier or minor gene loci. There was general agreement between the results for the F3 generation study and a previous study on the F2 generation.

scholarly journals Effects of interaction between cowpea variety and the application of plant powders on Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) infestation of stored cowpea seeds

2020 ◽  
pp. 33-44
Author(s):  
Owolabi Moshood Azeez ◽  
Adebola Adedoyin Osipitan ◽  
Isaac Oludayo Daniel ◽  
Olufemi Olutoyin Richard Pitan
Keyword(s):  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Adult Mortality ◽  
Management Scheme ◽  
Cowpea Seeds ◽  
Randomized Design ◽  
Hyptis Suaveolens ◽  
Plant Powders ◽  
Seed Resistance ◽  
Cowpea Variety

An integrated pest management scheme involving seed resistance and the application of powder of Cymbopogon citratus, Alstonia boonei, Hyptis suaveolens, Azadirachta indica, Loranthus braunii and Lycopersicum esculentum as protectant against the seed bettle, Callosobruchus maculatus (Fabricius), was evaluated in the laboratory at ambient temperature (29±3°C) and relative humidity (65±5%). Six resistant cowpea accessions selected from previous studies were treated with the six plant powders at 1.25% w/w in a 6×7 factorial arrangement fitted into a completely randomized design with five replicates. Seed treatment with any of the six plant powders on six accessions resulted in significantly higher adult mortality, lower oviposition rate, adult emergence inhibition, lower seed damage and higher seed germination over the control, Protection ability of the plant powders was influenced by the cowpea accessions used.

Performance of cowpea weevil Callosobruchus maculatus (F.) infesting seeds of different Vigna unguiculata (L.) Walpers genotypes: The association between bruchid resistance and chitin binding proteins

2022 ◽  
Vol 95 ◽  
pp. 101925
Author(s):  
Kayan Eudorico Ventury ◽  
Sarah Rodrigues Ferreira ◽  
Maurisrael de Moura Rocha ◽  
Geraldo do Amaral Gravina ◽  
André Teixeira da Silva Ferreira ◽  
...  
Keyword(s):  
Vigna Unguiculata ◽  
Binding Proteins ◽  
Callosobruchus Maculatus ◽  
Cowpea Weevil ◽  
Bruchid Resistance

Effects of four varieties of Lathyrus sativus (Fabaceae) seeds on the bionomics of Callosobruchus maculatus (Coleoptera: Chrysomelidae)

2015 ◽  
Vol 148 (1) ◽  
pp. 102-111 ◽  
Author(s):  
Poulami Adhikary ◽  
Ujjwal Malik ◽  
Anandamay Barik
Keyword(s):  
Amino Acids ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Developmental Time ◽  
Antinutritional Factors ◽  
The Other ◽  
Lathyrus Sativus ◽  
Trypsin Inhibitor Activity ◽  
Inhibitor Activity ◽  
Total Carbohydrates

AbstractThe effect of four varieties of Lathyrus sativus Linnaeus (Fabaceae) seeds (Bio L 212 Ratan, Nirmal B-1, WBK-14-7, and WBK-13-1) on the bionomics of Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae: Bruchinae) was studied under laboratory conditions. Total larval developmental time was longer on WBK-13-1 than Bio L 212 Ratan. Adult emergence was highest on Bio L 212 Ratan followed by Nirmal B-1, WBK-14-7, and WBK-13-1. The development and fecundity were related with nutrient and antinutritional factors of khesari seeds. Total carbohydrates and proteins were highest in Bio L 212 Ratan and Nirmal B-1 while lipids and nitrogen were highest in Bio L 212 Ratan and least in WBK-13-1. Amino acids were higher in Nirmal B-1 and WBK-13-1. Phenols were greatest in Nirmal B-1 and least in Bio L 212 Ratan and WBK-14-7. β-ODAP was higher in Bio L 212 Ratan and Nirmal B-1. The lower levels of carbohydrates, proteins, lipids, nitrogen, water content, and higher trypsin inhibitor activity of WBK-14-7 and WBK-13-1 may explain the higher developmental time and lower fecundity of C. maculatus on these varieties. These results suggest that infestations of C. maculatus may be easier to manage on WBK-14-7 and WBK-13-1 than on the other varieties of khesari seeds.

scholarly journals Contact and gustatory effects of spinosad on the survivability of Sitophilus oryzae L. (Coleoptera: Curculionidae) in wheat

2019 ◽  
Vol 47 (2) ◽  
pp. 253-262
Author(s):  
Umme Habiba ◽  
W Islam ◽  
Selina Parween
Keyword(s):  
Exposure Duration ◽  
Sitophilus Oryzae ◽  
Adult Emergence ◽  
Developmental Period ◽  
The Other ◽  
Dependent Manner ◽  
Wheat Varieties ◽  
F2 Generation ◽  
Successive Generations ◽  
Dose Dependent

The present study was planned to evaluate the effect of spinosad on the survivability and development of Sitophilus oryzae on four wheat varieties viz., BARI-26, BARI-28, Shatabdi-21 and Prodip-24. Three doses in three replications for spinosad were applied to four wheat varieties. Spinosad concentrations significantly increased the total developmental period compared to the control in a dose-dependent manner on four wheat varieties. The highest developmental period took 41.67 ± 0.33 days to become adult was recorded in S-21 at 0.0003 μl/g of spinosad in F1. All adults of F1 did not reach in F2 because surprisingly all adults died after emergence. So, no developmental period was found in S-21 (0.00±0.00) and B-28 (0.00 ± 0.00) days at 0.0003 μl/g spinosad in F2. On the other hand, five mated females were released on the treated wheat with different concentrations of spinosad for 10 - 15 days; then they were removed. Treated wheat was checked for up to 30 to 60 days and observed the progeny for two successive generations (1st and 2nd). Each combination of insect species, insecticide rate, and exposure duration were replicated three times. Among four wheat varieties, the lowest adult emergence was recorded as 08.00 ± 0.58 in F1 and totally controlled in F2 generation in S-21 variety at 0.0003 μl/g. Spinosad concentrations significantly increased the total developmental period compared to the control in a dosedependent manner on four wheat varieties. Bangladesh J. Zool. 47(2): 253-262, 2019

The efficacy of essential oil of Alpinia calcarata (Rosc.) and its major constituent, 1,8-cineole, as protectants of cowpea against Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)

2006 ◽  
Vol 86 (3) ◽  
pp. 821-827 ◽  
Author(s):  
Krishanthi Abeywickrama ◽  
A. A. C. K. Adhikari ◽  
Priyani Paranagama ◽  
Chammi S. Palehepitiya Gamage
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
The Other ◽  
Repellent Activity ◽  
Major Constituent ◽  
Fumigant Toxicity ◽  
Toxicity Assay ◽  
Cowpea Seeds

The bruchid, Callosobruchus maculatus, (F.) causes major losses during the storage of cowpea seeds [Vigna unguiculata (L.) Walp.] in Sri Lanka. Essential oil was extracted from Alpinia calcarata (Rosc.) and 1,8-cineole, identified as the major constituent of the essential oil, was tested for its potential insecticidal activity against C. maculatus. The adults of C. maculatus were susceptible to both fumigant toxicity and contact and fumigant toxicity of 1,8-cineole and A. calcarata oil. In the fumigant toxicity assay, the LC50 (0.685 g L-1) value of 1,8-cineole was similar to that of A. calcarata oil. However, LC50 values of 0.068 g L-1 and 0.141 g L-1 were obtained for the contact and fumigant toxicity of 1,8-cineole and A. calcarata oil, respectively. Oviposition and F1 adult emergence were significantly inhibited by 1,8-cineole and A. calcarata oil at concentrations higher than 0.80 g L-1 in the fumigant toxicity and 0.123 g L-1 in the contact plus fumigant toxicity. Repellent activity of A. calcarata oil was more potent to C. maculatus than 1,8-cineole at doses ranging from 10 to 40 mg. This study reveals that 1,8-cineole is the most toxic component present in A. calcarata oil, and that the repellent activity of A. calcarata oil could be due to 1,8-cineole as well as the other constituents present in the essential oil. Key words: Callosobruchus maculatus (F.), Alpinia calcarata (Rosc.), 1,8-cineole, essential oils, cowpea

Evaluation of leaf and vine powders of Secamone afzelii (Schult) K. Schum for control of Callosobruchus maculatus (Fab.) (Coleoptera: Bruchidae) in stored cowpea Vigna unguiculata (L.) Walp.

2011 ◽  
Vol 1 (3) ◽  
pp. 158-162
Author(s):  
J. M. Adesina ◽  
T. I. Ofuya
Keyword(s):  
Weight Loss ◽  
Vigna Unguiculata ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Application Rate ◽  
Post Treatment ◽  
Percentage Weight Loss ◽  
Laboratory Conditions ◽  
Percentage Weight ◽  
Treatment Number

The experiment was carried out to evaluate the efficacy of Secamone afzeliileaf and vine powders applied at the rate of 0.5g, 1.0g, 1.5g and 2.0g underambient laboratory conditions on Callosobruchus maculatus on stored cowpea.Mortality of adult insects at 48 h post treatment, number of eggs laid,adult emergence, adult exit holes and percentage weight loss in each treatmentwere compared with those of control. The results indicated that vinepowder caused significantly greater kill (P < 0.05) of C. maculatus adultswhen applied at 2.0g than other dosages. The application rate of 2.0g of leafpowder was able to cause reduction in number of eggs laid by the weevil(5.67/20g seed) and significantly (P < 0.05) suppressed adult emergence(21.12). Adult exit holes and percentage weight loss were significantly reducedat all levels of application. It is concluded that Secamone afzelii hasgreat potential for use as a plant‐based biopesticide for controlling C. maculatuson stored cowpea.

scholarly journals BIOATIVIDADE DO ÓLEO ESSENCIAL DE Croton blanchetianus Baill (Euphorbiaceae) SOBRE Callosobruchus maculatus Fabricius, 1775 (Coleoptera: Chrysomelidae)

Nativa ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 450-455
Author(s):  
Antonielson Bezarra da Silva ◽  
Carlos Romero Ferreira de Oliveira ◽  
Cláudia Helena Cysneiros Matos ◽  
Patryck Érmerson Monteiro dos Santos ◽  
Cilene Rejane Inácio de Magalhães Lira
Keyword(s):  
Essential Oil ◽  
Vigna Unguiculata ◽  
Callosobruchus Maculatus ◽  
Residual Effect ◽  
The Other ◽  
Botanical Insecticides ◽  
Contact Toxicity ◽  
Stored Grains ◽  
Emergence Rate ◽  
Petri Dishes

Foi avaliada a toxicidade, por contato, a taxa de oviposição e emergência de C. maculatus em grãos de feijão-caupi tratados com o óleo essencial de Croton blanchetianus e o efeito residual em diferentes períodos de armazenamento, sendo, ainda, determinadas as concentrações letais (CL50 e CL90). O teste de toxicidade por contato e taxas de oviposição e emergência de C. maculatus foi realizado em placas de Petri, utilizando 6 concentrações (0; 2.5; 5; 7.5; 10 e 12.5 μL/20g). No teste residual, os grãos foram submetidos a diferentes períodos de armazenamento (0, 30 e 60 dias). Os resultados mostraram que o óleo essencial de C. blanchetianus apresentou toxicidade por contato sobre C. maculatus. Observou-se que as concentrações letais foram consideradas baixas. Este óleo também reduziu a oviposição e emergência de adultos. Por outro lado, durante diferentes períodos de armazenamento o óleo teve sua ação diminuída, apresentando potencial para ser utilizado em programas de manejo de C. maculatus em feijão armazenado.Palavras-chave: inseticidas botânicos; Bruchinae; grãos armazenados; Vigna unguiculata. BIOACTIVITY OF Croton blanchetianus Baill (Euphorbiaceae) ESSENTIAL OIL ON THE Callosobruchus maculatus Fabricius, 1775 (Coleoptera: Chrysomelidae) ABSTRACT: The toxicity was calculated by contact, the oviposition and emergence rate of C. maculatus on cowpea treated with the essential oil of Croton blanchetianus and the residual effect in different periods of storage, and additionally the lethal concentrations (CL50 and CL90) were determined. The contact toxicity test and order to the oviposition and emergence rates of C. maculatus was carried out in Petri dishes, using 6 concentrations (0, 2.5, 5, 7.5, 10 and 12.5 μL/20g). In the residual test, the cowpeas were submitted to different storage periods (0, 30 and 60 days). The results showed that the C. blanchetianus essential oil showed contact toxicity on the beetle C. maculatus. It was observed that lethal concentrations were considered low. This oil also reduced oviposition and emergence of adults. On the other hand, during different periods of storage the oil's action diminished, presenting potential to be used in management programs of C. maculatus in stored beans.Keywords: botanical insecticides; Bruchinae; stored grains; Vigna unguiculate.

Sign in / Sign up

Export Citation Format

Share Document