scholarly journals Correlation of Sex Ratio and Population of Callosobruchus chinensis L. (Coleoptera: Bruchidae) in Mung Beans

2021 ◽  
Vol 3 (2) ◽  
pp. 0210203
Author(s):  
Gallyndra Fatkhu Dinata ◽  
Baroroh Nur Jihad
Keyword(s):  
Weight Loss ◽  
Sex Ratio ◽  
Plant Breeding ◽  
Mung Bean ◽  
Seed Weight ◽  
Close Correlation ◽  
Callosobruchus Chinensis ◽  
Yield Losses ◽  
Preliminary Results

One of the important pests on mung beans is the warehouse pest Callosobruchus chinensis (Coleoptera: Bruchidae). These pests can cause yield losses of up to 90%. Populations of adult C. chinensis have a close correlation in influencing the development of this pest in mung bean storage. This study aims to determine the correlation between the sex ratio of the population and its development in C. chinensis and to see its preference for mung beans. This research was conducted at the Plant Breeding Laboratory, Brawijaya University. The method was carried out by investing adult C. chinensis in mung beans based on the sex ratio, there are four sex ratio comparisons observed. Observations were made every week to see the number of eggs, larvaes, adults and dead insects. Based on the results of the study, the sex ratio of 2 males and 3 females resulted in the highest number of populations, a total of 72 eggs and 46 adult C. chinensis. Our hypothesis is that a high sex ratio leads to an increase in the population of C. chinensis. The vima variety is resistant mung beans compared to consumption varieties because it has lower seed weight loss. The results of this study are preliminary results that can be used for further research to evaluate the correlation between sex ratio, population and development of C. chinensis

Susceptibility of mung bean varieties to Callosobruchus chinensis under storage conditions

2015 ◽  
Author(s):  
V. R. Parmar ◽  
B. H. Patel
Keyword(s):  
Weight Loss ◽  
Population Growth ◽  
Mung Bean ◽  
Oviposition Preference ◽  
Storage Conditions ◽  
Callosobruchus Chinensis

Investigations were carried out during 2013 on mung bean for their susceptibility against Callosobruchus chinensis L. under storage. Among the mung bean varieties; Vishal, Samrat, GM-3, GM-4 and K-851 were found resistant based on oviposition preference (7.97/20 seeds, 8.74, 8.99, 9.17 and 9.49, respectively), population growth (345.09, 371.99, 397.50, 405.52, and 437.56, respectively), per cent weight loss (6.11%, 7.43%, 8.08%, 9.28% and 11.04%, respectively) and per cent germination loss (29.27%, 36.03%, 34.91%, 40.36% and 40.42%, respectively) against C. chinensis. Variety VMS-6 was also found resistant based on oviposition preference (9.61), population growth (437.56) and germination loss (43.87%) whereas GM-2 was resistant based on oviposition preference (10.72).

scholarly journals Efficacy of dodder vine extract as seed protectant against pulse beetle, Callosobruchus chinensis (Coleoptera: Bruchidae)

1970 ◽  
Vol 8 (1) ◽  
pp. 35-38 ◽  
Author(s):  
MH Rahman ◽  
MA Ali ◽  
KS Ahmed
Keyword(s):  
Weight Loss ◽  
Seed Weight ◽  
Adult Emergence ◽  
Callosobruchus Chinensis ◽  
Seed Damage ◽  
Pulse Beetle ◽  
Developmental Performance

The experiment was conducted to find out the efficacy of dodder vine extract as seed protectant against pulse beetle, Callosobruchus chinensis on gram seed in the laboratory of the Department of Entomology, Bangladesh Agricultural University, Mymensingh during the period of February to May, 2009. The concentrations of dodder vine extract were 5, 2 and 1% respectively. Efficacies of these treatments were evaluated by considering oviposition, adult emergence, intensity of damage and seed weight loss done by pulse beetle. Dodder vine extract was found effective in checking oviposition, adult progeny development and severity of seed damage. Seeds treated with 5% concentration of dodder vine extract were less preferred for oviposition, adult emergence and seed weight loss by C. chinensis and this conc. might be useful in protection of pulse seed. Keywords: Dodder vine extract; Fecundity; Developmental performance; Seed weight loss; C. chinensis. DOI: 10.3329/jbau.v8i1.6395J. Bangladesh Agril. Univ. 8(1): 35-38, 2010

scholarly journals Biopesticidal Management of Pulse Beetle (Callosobruchus Chinensis L) in Chickpea Seeds

2020 ◽  
Vol 2 (1) ◽  
pp. p184
Author(s):  
Md. Israfil Jahan ◽  
Masum Ahmad ◽  
Md. Sohanur Rahman ◽  
Fakhar Uddin Talukder
Keyword(s):  
Weight Loss ◽  
Seed Weight ◽  
Adult Emergence ◽  
Datura Stramonium ◽  
Adult Mortality ◽  
Callosobruchus Chinensis ◽  
Control Seed ◽  
Plant Powders ◽  
Pulse Beetle ◽  
Leaf Powder

The pesticidal efficacy of four locally available leaves of botanicals like neem (Azadirachta indica), datura (Datura stramonium),  marigold (Tagetes erecta) and garlic (Allium sativum L.) tablet powders was assessed on pulse bettle (Callosobruchus chinensis L) through adult mortality and emergence, oviposition performance, seed damage, weight loss and germination  of chickpea (Cicer arietinum). The above test biopesticides were tested at three different rates (0.5 g, 1.0 g and 1.50 g powder/kg of chickpea seeds). All the tested powder showed significant effect on the above parameters. The highest adult mortality was recorded when chickpea seeds were treated with datura leaf powder at 1.50 g/kg, whereas marigold showed the least effect on adult mortality. The powders used in the experiment effectively controlled oviposition and adult emergence of pulse beetle. The lowest number of adult emergence was obtained from chickpea seeds treated with datura leaf powder at 1.50 g/kg. The highest weight loss was observed in control seeds followed by marigold leaf powder 0.5 g/kg gram seeds. Datura leaf powder treated seeds showed the lowest seed weight loss followed by neem, garlic and marigold. Plant powders had profound effect on seed germination. The highest germination was observed in treated seed with datura leaf powder at 1.50 g/kg and the lowest germination in control seed followed by marigold leaf powder at 1.5 g/kg treated seeds. The pesticidal effect on oviposition, adult mortality, adult emergence, and seed weight loss was directly proportional to leaf powder rates.

scholarly journals Biorational Management of Pulse Bettle (Callosobruchus chinensis L.) on Chickpea Seeds

2021 ◽  
pp. 7-14
Author(s):  
Arafat Hasan ◽  
Mehedi Hasan ◽  
Keya Akter ◽  
Sonia Sultana ◽  
Tasnia Ummul Wara ◽  
...  
Keyword(s):  
Weight Loss ◽  
Weight Reduction ◽  
Seed Weight ◽  
Direct Method ◽  
Insect Pest ◽  
Storage Condition ◽  
Callosobruchus Chinensis ◽  
Neem Oil ◽  
Pulse Beetle ◽  
Karanja Oil

The pulse beetle, Callosobruchus chinensis is one of the major insect pest in stored pulse (i.e. Chickpea seeds) causing 40-50% losses of pulses in storage. Experiments were conducted to study the efficacy of some selected biorational insecticides on mortality of beetle, weight loss of seeds, fecundity and hatchability of pulse beetle, Callosobruchus chinensis under laboratory condition. Among the different botanicals, Neem oil (89.00%) was found the most effective in case of mortality of pulse beetle in direct method followed by Mahogany oil (78.00%) and Karanja oil (62.00%). Among different microbial derivatives, Spinosad was found most effective considering mortality followed by Emamectin benzoate and Abamectin. Among botanicals the highest percentage of weight reduction was observed in Karanja oil (30.18%) and the lowest (22.43%) was in Neem oil while among microbial derivatives the lowest percentage of seed weight reduction was obtained from Spinosad (11.15%) and the highest percentage of weight reduction was obtained from Abamectin (20.37%). No. of eggs laid per female was recorded highest in Karanja oil (24.00) and lowest in Spinosad (19.33). The hatchability percentage was highest in Karanza oil (21.73%) and lowest in Neem (12.89%) and in case of chemical treatment lowest in spinosad (6.05%) and highest in Ebamectin (14.42%). Neem oil and Spinosad were found effective against pulse beetle in storage condition. Therefore, Neem oil and Spinosad might be included in the development of IPM packages for the management of pulse beetle in the storage.

scholarly journals Egg deposition and weight loss of seeds by pulse beetle, Callosobruchus chinensis L. on different genotypes of pulses

2019 ◽  
Vol 44 (3) ◽  
pp. 513-524
Author(s):  
S Ahmed ◽  
A Haque ◽  
H Mahmud ◽  
KM Khalequzzaman
Keyword(s):  
Weight Loss ◽  
Cicer Arietinum ◽  
Seed Weight ◽  
Regression Line ◽  
Callosobruchus Chinensis ◽  
Percent Weight Loss ◽  
Cicer Arietinum L ◽  
Egg Deposition ◽  
Pulse Beetle ◽  
Tolerant Genotype

Lentil Lens culinarisMedik., mungbeanVignaradiata L. R. Wilczek, chickpea Cicer arietinum L. and blackgramVigna mungo L. Hepper of different genotypes were tested against pulse beetle, Callosobruchuschinensis L. in the laboratory of the Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh to evaluate the number of eggs deposition and percent weight loss of seeds. Maximum number of eggs (73.1) was oviposited on chickpea and minimum (19.5) was found on blackgram. The highest (19.9%) weight loss in seed was noted in chickpea and the lowest (7.6%) was recorded in blackgram. On the basis of weight loss of seed, blackgram and mungbean exhibited as tolerant genotype, lentil with moderately susceptible and chickpea as susceptible. Genotypes ML-22 of lentil, MC-21 of mungbean, Hyprosola of chickpea and MAK–1-79 of blackgram were found tolerant as compared to other tested genotypes considering the reduced number of egg deposition and lowest loss of seed weight. Evidently, the percent weight loss was marked as positive correlation with number of eggs deposition in all the genotypes and the regression line resulted in increasing the number of eggs laid with the increase in percent weight loss. Bangladesh J. Agril. Res. 44(3): 513-524, September 2019

PENGARUH EKSTRAK DAUN MIMBA TERHADAP PERKEMBANGAN HAMA Callosobruchus chinensis L. (Coleoptera : Bruchidae)

AGRICA ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 32-37
Author(s):  
Yustina M.S.W Puu ◽  
Hildegardis Nalti Nansi
Keyword(s):  
Mung Bean ◽  
Leaf Extract ◽  
Callosobruchus Chinensis ◽  
Spawning Activity ◽  
Green Beans ◽  
Leaf Extracts ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Contact Poison ◽  
Neem Leaf Extract

Callosobruchus Chinensis is a pest that damages mung bean seeds in storage and causes damage to both the quality and quantity of seeds. This study aims to determine the effectiveness of neem leaf extracts in suppressing the development of the Callosobruchus Chinensis pest as one of the postharvest pests in the commodity green beans. This research conducted at the Laboratory of the Faculty of Agriculture, University of Flores, by using a Completely Randomized Design (CRD) with five treatments and three replications. The concentration of neem leaf extract treatment is 0 ml / l, 25 ml / l, 30 ml / l, 35 ml / l, and 40 ml / l. The results showed that the concentration of neem leaf extract 40 ml / l caused mortality of C. Chinensis imago as contact poison by 99% and nerve poison by 47%. While the effectiveness of the limb leaf extract on spawning activity was 86%.

scholarly journals Web Support for Weight-Loss Interventions: PREDIRCAM2 Clinical Trial Baseline Characteristics and Preliminary Results

2018 ◽  
Vol 20 (5) ◽  
pp. 380-385 ◽  
Author(s):  
Valeria Alcántara-Aragón ◽  
Susana Rodrigo-Cano ◽  
Ascension Lupianez-Barbero ◽  
María José Martinez ◽  
Carmen Martinez ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Weight Loss ◽  
Preliminary Results ◽  
Baseline Characteristics ◽  
Weight Loss Interventions

scholarly journals Impact of common bacterial blight on the yield, seed weight and seed discoloration of different market classes of dry beans (Phaseolus vulgaris L.)

2015 ◽  
Vol 95 (4) ◽  
pp. 703-710 ◽  
Author(s):  
J. G. Boersma ◽  
A. Hou ◽  
C. L. Gillard ◽  
K. B. McRae ◽  
R. L. Conner
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Weight ◽  
Bacterial Blight ◽  
Common Bacterial Blight ◽  
Yield Losses ◽  
Dry Beans ◽  
Phaseolus Vulgaris L ◽  
Navy Bean ◽  
Navy Beans ◽  
The Impact

Boersma, J. G., Hou, A., Gillard, C. L., McRae, K. B. and Conner, R. L. 2015. Impact of common bacterial blight on the yield, seed weight and seed discoloration of different market classes of dry beans (Phaseolus vulgaris L.). Can. J. Plant Sci. 95: 703–710. Common bacterial blight (CBB) is a seed-borne disease of dry bean (Phaseolus vulgaris L.), causing significant economic loss to growers due to reductions in seed yield and quality and the need to annually purchase disease-free seed. Over the past decade a number of breeding lines and cultivars with resistance to CBB have been developed in several bean market classes including navy, black and cranberry beans. A comparison of three susceptible navy bean cultivars and seven resistant navy, three black and one cranberry bean entries in Manitoba revealed that most resistant navy and black bean lines had significantly reduced the incidence of leaf symptoms and their mean yield losses were reduced to less than 17%, while those of the susceptible lines were as high as 36% under severe disease pressure. Only the weakly resistant navy bean cultivar HR67 and the cranberry bean line F4GR1 failed to substantially reduce CBB symptoms or show a yield advantage. The Simple Sequence Repeat (SSR) marker PVctt001 in combination with Sequence Characterized Amplified Region (SCAR) marker SU91 was associated with a low incidence of CBB symptoms and a reduced yield loss in five navy bean lines, but not in the cranberry bean line F4GR1. Disease symptoms on the pods in the resistant black and navy beans and seed discoloration of navy beans caused by CBB were also significantly reduced by resistance. Seed weights were reduced by 2.1–4.7% in the susceptible cultivars, but there was only a slight or no decrease or no effect on the seed weight of the CBB-resistant lines and cultivars. Generally the magnitude of the reductions in yield was much greater than the impact on seed weight, which suggests that yield losses were caused by a combination of reduced seed weight and the number of seeds per plant.

Screening of cowpea [Vigna unguiculata (L.) Walp.] accessions against pulse-beetle, Callosobruchus chinensis (L.)

2015 ◽  
Vol 38 (5) ◽  
Author(s):  
Kuldeep Tripathi ◽  
Sumit Kumar Chauhan ◽  
Padmawati G. Gore ◽  
T. V. Prasad ◽  
Kalyani Srinivasan ◽  
...  
Keyword(s):  
Weight Loss ◽  
Positive Relationship ◽  
Growth Parameters ◽  
Negative Relationship ◽  
Growth Index ◽  
Adult Emergence ◽  
Callosobruchus Chinensis ◽  
Local Variety ◽  
Development Period ◽  
Pulse Beetle

A total of 52 accessions of cowpea including two checks (Pusa Komal and Local variety) were screened for resistance to pulse beetle, <italic>Callosobruchus chinensis</italic> under no-choice artificial infestation conditions. There were significant differences among the accessions in terms of number of eggs laid, development period, adult emergence, number of emergence holes, weight loss and growth index of <italic>C. chinensis</italic> on cowpea. Based on growth indices, Pusa Komal (0.04081) and IC328859 (0.04112) were resistant while IC106033 (0.06819) and Local variety (0.06816) were most susceptible to <italic>C. chinensis</italic>. Of the 52 accessions screeened, 11 accessions were resistant, 15 moderately resistant, 13 moderately susceptible, 8 susceptible and 5 were highly susceptible to <italic>C. chinensis.</italic> Correlation between growth index and growth parameters of pulse beetle on different cowpea accessions indicated that growth index had significant negative relationship with mean development period (r = -0.68) and significant positive relationship with adult emergence(r = +0.80). Adult emergence had a positive relationship with weight loss (r = +0.22).

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