scholarly journals Effects of Garlic Clove, Neem and Eucalyptus Leaf Extract on Mating Behaviour, Oviposition and Adult Emergence of Pulse Beetle, Callosobruchus maculatus

2014 ◽  
Vol 18 (2) ◽  
pp. 93-97 ◽  
Author(s):  
S Akter ◽  
N Nahar ◽  
M Rahman

Experiments were conducted in the laboratory to study the effects of garlic clove, neem and eucalyptus leaf extracts on mating behaviour, oviposition and adult emergence of pulse beetle, Callosobruchus maculatus. Intensity of seed damage and weight loss of gram seeds were also recorded. The results showed that the mating frequency, mating duration, oviposition, adult emergence of pulse beetle and weight loss of gram seeds were reduced significantly after application of the extracts. Among the extracts, neem leaf extracts showed lowest mating frequency (1), mating duration (3.66 minutes), lowest number of laid eggs (27.33), adult emergence (11.67), seed damage (6.89%) and weight loss (2.53%). On the other hand, garlic clove extract showed highest mating frequency (1.67), mating duration (4.67 minutes), highest number of laid eggs (40.33), adult emergence (18.66), seed damage (9.63%) and weight loss (3.73%). In the same way eucalyptus leaf extract showed 2nd highest mating frequency (1.5), mating duration (4.5 minutes), eggs laid (38.67), adult emergence (15.67), seed damage (9.25) and seed weight loss (3.33%). Considering efficacy of all extracts, it was found that the order of toxicity was neem leaf extract>eucalyptus leaf extract> garlic clove extract.DOI: http://dx.doi.org/10.3329/pa.v18i2.18164 Progress. Agric. 18(2): 93 - 97, 2007

1970 ◽  
Vol 8 (1) ◽  
pp. 35-38 ◽  
Author(s):  
MH Rahman ◽  
MA Ali ◽  
KS Ahmed

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


2021 ◽  
Vol 13 (4) ◽  
pp. 1206-1213
Author(s):  
Ragul Subramaniyan ◽  
Manivannan Narayana ◽  
Iyanar Krishnamoorthy ◽  
Ganapathy Natarajan ◽  
Karthikeyan Gandhi

Black gram (Vigna mungo (L.) Hepper) is one of the most important pulse crops in daily diets. However, black gram production and post-harvest preservation are still tedious due to the losses caused by the storage pest bruchine, Callosobruchus maculatus (F.), both quantitatively and qualitatively.   Hence, the present study involves the utilization of the multivariate analysis by effectively understanding variation among the genotypes based on their level of bruchine infestation. The multivariate studies indicated that the traits viz., the total number of adult emergence (AE), seed damage % (SD) and seed weight loss % (SWL) had more variation and with more significant correlation among them.  Also, these traits are the most influential principal component traits governing 88% of the variation among genotypes. The divergence analysis showed that the genotype TU 68 found in cluster II would have the potential to create the variation for bruchine infestation among the black gram genotypes involved in the study.  As it has scored lesser adult emergence (AE) (7 adults), seed damage % (SD) (14 %) and seed weight loss % (SWL) (17.79 %)  than the other genotypes. It shows the resistant nature of the genotype against bruchine beetles. Hence, TU 68 could be utilized in the future hybridization programme as a donor for bruchine resistance.


2016 ◽  
Vol 39 (6) ◽  
Author(s):  
Rupesh Sharma ◽  
Renu Devi ◽  
Sunita Yadav ◽  
Ramesh Sharma ◽  
Umesh Sharma ◽  
...  

A laboratory experiment was conducted to evaluate the effect of some plant products viz., neem oil, mustard oil, groundnut oil, turmeric powder and their mixture were used as surface protectants for pigeonpea seed against Callosobruchus maculatus (F.). The highest mortality (84-100%) was manifested by neem oil @ 10ml/kg among all the treatments and lowest (3.33%) with turmeric powder @ 3.5g/kg seeds, after 135 days of storage. Neem oil @10ml/kg completely inhibited oviposition, adult emergence, seed damage and also not affected seed quality as compare to other treatment. All the oils prevented egg laying, reduced population build up of beetles and minimized the seed damage as compare to control.


2019 ◽  
Vol 6 (12) ◽  
pp. 171-180
Author(s):  
Mercy Olayinka Oni

The ethanolic oil extracts of Acalypha wilkesiana was assayed for its biotoxicity against the survival of Callosobruchus maculatus, immature stages, damage and seed weight-loss. The result was dosage and time of exposure dependent. The contact treatment revealed A. wilkesiana oil as an applicable biocide as it significantly (p < 0.05) affect the survival rate, suppressed oviposition and adult emergence of C. maculatus, hence reduced seed damage and weight-loss in grains below economic injury level. Contact treatment were the most toxic with LD50 values of 3.97 and 5.85 at 72 h, significantly lower (p < 0.05) than fumigant values 4.16 and 6.04, suggesting its isolation for future biocide study to establish the dose and mode of action for commercialization in crop protection.


1970 ◽  
Vol 4 (1) ◽  
pp. 89-93
Author(s):  
MZA Pramanik ◽  
MA Sardar

Experiments were carried out in the laboratory to assess the effectiveness of Nogos, Malathion, Sevin and Limper on lentil, gram, grasspea, greengram and blackgram seeds with eggs of pulse beetle, Callosobruchus chinensis L. Insecticides were sprayed on the seeds along with eggs and found that all the tested insecticides inhibited hatching of eggs resulting in significantly lowest rate of adult emergence. Nogos and Malathion recorded the lower number of emergent adults. The overall 26.35- 100% reduction of seed damage and 40-100% weight losses were achieved in insecticides treated seeds of five different types of pulses showing highest reduction in seed damage and weight losses due to Nogos and Malathion treatments. The treatment of the pulse seeds with the insecticides did not affect the seed germination. Key words: Insecticides, pulse beetle, egg treatment, pulses, seed damage.


2015 ◽  
Vol 38 (5) ◽  
Author(s):  
Kuldeep Tripathi ◽  
Sumit Kumar Chauhan ◽  
Padmawati G. Gore ◽  
T. V. Prasad ◽  
Kalyani Srinivasan ◽  
...  

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).


Author(s):  
Mala Tankam C. M. ◽  
Kekeunou Sevilor ◽  
Olina Bassala J. P. ◽  
Nukenine Nchiwan E.

Introduction: Post-harvest conservation remains a major challenge for most crops in developing countries. Among these is Cowpea one of the major legumes grown and consumed in the tropics and subtropics of countries. Callosobruchus maculatus infestations constitute are the most prominent threat for this particular crop. Objective: The present research aimed at evaluating the susceptibility of four cowpea varieties against infestations of C. maculatus. Place and Duration of Study: The study was conducted at the entomology laboratory of the cowpea section of the Regional Center for Agricultural Research of Maroua from November to December 2018. Methodology: The experiments were carried out based on the factorial experiment by randomized complete design with five replications. 40 seeds of each variety were put in contact with 5 pairs of bruchids. Results: The results show that the four cowpea varieties evaluated have different physical characteristics of the seeds. This variability would play an important role in inducing the ovipositional response of C. maculatus females. However, it is not enough on its own to explain the various degree of susceptibility to C.maculatus infestations. There was a positive perfect correlation between the number of adult emergence, growth index, weight loss, number of holes and Dobie susceptibility index. Also, BR-1 was found to be more resistant to C. maculatus followed by Lori-niébé, Vya and least resistance was observed in the Borno brown. The multiple regression analysis reveals that there is a negative relationship between mortality rate of developmental stages, weight loss, F1 offspring production, and seed susceptibility. Conclusion: The physical characteristics of the four cowpea varieties tested to affect the susceptibility of the grain to beetle attacks. A number of adult emergence, growth index, weight loss, and susceptibility index are the main indicators for the resistance of cowpea to C. maculatus damage. An analysis of the amino acids contained in the BR-1 is recommended for the introgression of its resistance alleles in susceptible varieties.


2015 ◽  
Vol 7 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Krishna Rolania ◽  
M. C. Bhargawa

A laboratory experiment was conducted during 2007-2008 at SKN Agricultural University, Jobner on evaluation of different plant oils viz., neem, karanj, mustard, groundnut, lemongrass and citronella oils (0.1, 0.5 and 1.0 ml/100g seeds) and one chemical, malathion (0.025, 0.050 and 0.075 per cent) against Lasioderma serricorne on fennel seeds. The malathion at all concentrations was found to be most lethal, causing cent per cent mortality of adults. Neem oil was found to be most effective in increasing the developmental period (78.23 days) and reducing adult emergence (19.02 per cent), longevity of adult (male: 11.1 days and female: 12.0 days), seed damage (5.10 per cent), weight loss (2.60 per cent) followed by karanj and lemongrass oils at 1.0 ml/100g.


Author(s):  
S. Ramesh Babu ◽  
S. V. S. Raju ◽  
P. S. Singh ◽  
Kamal Ravi Sharma

The host preference of pulse beetle, C. maculatus to selected host grains were evaluated under laboratory conditions in the Department of Entomology and Agricultural Zoology, Banaras Hindu University during the year 2018. Cowpea and green gram were most preferred hosts for C. maculatus in terms of oviposition, per cent survival and mean developmental periods. Red gram and soybean were comparatively less preferred host for oviposition (66.38 eggs/50 seeds and 69.00 eggs/50 seeds respectively) than other host grains. In terms of per cent grain damage (92.25%; 90.19%) and per cent weight loss of grains (76.27%; 75.92%) cowpea and green gram were most preferable hosts respectively after 120 days after insect inoculation.


Author(s):  
Rupesh Sharma ◽  
Renu Devi ◽  
Sunita Yadav ◽  
Poonam Godara

Biology of pulse beetle (Callosobruchus maculatus F.) was studied on pigeonpea grains during 2014-15 in laboratory conditions. The adult beetle was oval in shape and reddish-brown in colour, with dark stripes on each side of dorsal abdomen with average fecundity of 74.8±1.8 eggs per female. The average incubation period was 4.2±0.2 days with hatching 98.2±0.3 percent. Average larval-pupal period, oviposition, post-oviposition period, total life period and adult life span were 21.3±0.3, 8.2±0.5, 2.8±0.5, 33.3 ±2.4 and 12.0±2.1 days, respectively. The effect of nine botanicals viz., neem oil, mustard oil, groundnut oil, turmeric powder and their mixture and surface protectants viz., neem seed kernel powder, saw dust, sand, dung cake ash and wheat husk were used on pigeonpea seed against Callosobruchus maculatus. The highest mortality (84-100%) was observed by neem oil @ 10ml/kg and lowest (3.33%) by turmeric powder @ 3.5g/kg seeds, after 135 days of storage. Neem oil @ 10ml/kg was completely inhibited the oviposition, adult emergence and seed damage. All the oils and inert materials prevented egg laying, reduced population build up of beetles and minimized the seed damage as compare to control.


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