scholarly journals Reactions of Some Varieties of Pearlmillet, Pennisetum glaucum (Linn.) R. Br. emend Stuntz. to Rice Moth, Corcyra cephalonica Staint

2021 ◽  
Author(s):  
Anita Sharma ◽  
K.C. Kumawat ◽  
S.K. Khinchi
Keyword(s):  
Pennisetum Glaucum ◽  
Adult Emergence ◽  
Developmental Period ◽  
Corcyra Cephalonica ◽  
Seed Damage ◽  
Laboratory Conditions ◽  
Susceptibility Index ◽  
Weight Losses ◽  
Grain Damage ◽  
Rice Moth

Abstract Ten varieties of pearlmillet (RHB-173, RHB-177, MPMH-17, HHB-67, Pro Agro-9450, Pro Agro-9001, Pioneer 86 m 86, Pioneer 86 m 84, Pioneer 86 m 38 and Raj-171.) were evaluated for reaction to Corcyra cephalonica Staint. in the laboratory conditions. The adult emergence (F1), weight losses and susceptibility index in these varieties were ranged from 9.33-32.00, 10.44-31.69% and 2.77-6.82, respectively, the minimum in Pioneer 86 m 86 and maximum in Raj-171; other varieties were in the middle order. The seed damage recorded in different varieties ranged from 23.67-75.84%, the minimum in Pioneer 86 m 86 (23.67%), Pro Agro-9450 (25.55%) and Pro Agro-9001 (28.33%), these treatments were found at par each other. The Raj-171 was found to be badly infested (75.84% grain damage) which differed significantly over other varieties. The developmental period of the pest varied from 50.88-80.61 days in different varieties, minimum being in Raj-171 and maximum in Pioneer 86 m 86.

scholarly journals Reactions of Some Varieties of Pearlmillet, Pennisetum glaucum (Linn.) R. Br. emend Stuntz. to Rice Moth, Corcyra cephalonica Staint.

2021 ◽  
Author(s):  
Anita Sharma ◽  
K C Kumawat ◽  
S K Khinchi
Keyword(s):  
Pennisetum Glaucum ◽  
Adult Emergence ◽  
Developmental Period ◽  
Corcyra Cephalonica ◽  
Seed Damage ◽  
Laboratory Conditions ◽  
Susceptibility Index ◽  
Weight Losses ◽  
Grain Damage ◽  
Rice Moth

Abstract Ten varieties of pearlmillet (RHB-173, RHB-177, MPMH-17, HHB-67, Pro Agro-9450, Pro Agro-9001, Pioneer 86 m 86, Pioneer 86 m 84, Pioneer 86 m 38 and Raj-171.) were evaluated for reaction to Corcyra cephalonica Staint. in the laboratory conditions. The adult emergence (F1), weight losses and susceptibility index in these varieties were ranged from 9.33-32.00, 10.44–31.69% and 2.77–6.82, respectively, the minimum in Pioneer 86 m 86 and maximum in Raj-171; other varieties were in the middle order. The seed damage recorded in different varieties ranged from 23.67–75.84%, the minimum in Pioneer 86 m 86 (23.67%), Pro Agro-9450 (25.55%) and Pro Agro-9001 (28.33%), these treatments were found at par each other. The Raj-171 was found to be badly infested (75.84% grain damage) which differed significantly over other varieties. The developmental period of the pest varied from 50.88–80.61 days in different varieties, minimum being in Raj-171 and maximum in Pioneer 86 m 86.

scholarly journals Application of Insecticides on Eggs of Callosobruchus chinensis L. Using Different Types of Pulse Seeds

1970 ◽  
Vol 4 (1) ◽  
pp. 89-93
Author(s):  
MZA Pramanik ◽  
MA Sardar
Keyword(s):  
Seed Germination ◽  
Key Words ◽  
Adult Emergence ◽  
Lower Number ◽  
Callosobruchus Chinensis ◽  
Seed Damage ◽  
Weight Losses ◽  
Pulse Beetle ◽  
Different Types ◽  
Emergent Adults

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.

scholarly journals Biology of Coccinella transversalis Muls. (Coleoptera: Coccinellidae)

2005 ◽  
pp. 43-52
Author(s):  
Brenda Balbarino ◽  
Maria Juliet Ceniza
Keyword(s):  
Adult Emergence ◽  
Developmental Period ◽  
Aphis Craccivora ◽  
Larval Instars ◽  
Black Bean ◽  
Pupal Period ◽  
Laboratory Conditions ◽  
Development Period ◽  
Coccinella Transversalis ◽  
Black Bean Aphid

The biology of Coccinella tranversalis reared on black bean aphid, Aphis craccivora was studied in the laboratory. The beetle passed through the egg, 4 larval instars, pupa and adult stages. The eggs were spindle-shaped and had an incubation of 2-3 days with an average of 2.85 days. The larvae which were typically black with orange bands or tinge on the methoracic region and some part of the abdomen had a total development period of about 6-9 days, with an average of 7.27 days. The pupal period lasted for about 3-4 days, or 3.83 days on the average. The total developmental period from egg to adult emergence took about 13-15 days. The adults which were typically red orange with black inverted v markings on the elytra lived for an average of 51.34 days. The female laid an average of 1000 eggs under laboratory conditions.

scholarly journals Evaluation of different plant oils against Lasioderma serricorne Fab. on fennel

2015 ◽  
Vol 7 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Krishna Rolania ◽  
M. C. Bhargawa
Keyword(s):  
Weight Loss ◽  
Laboratory Experiment ◽  
Adult Male ◽  
Adult Emergence ◽  
Developmental Period ◽  
Plant Oils ◽  
Lasioderma Serricorne ◽  
Neem Oil ◽  
Seed Damage ◽  
Cent Mortality

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.

scholarly journals Potential of an Insect Growth Regulator in the Management of the Rice Moth Corcyra Cephalonica Stainton, 1866 (Lepidoptera: Pyralidae)

2014 ◽  
Vol 83 (1) ◽  
pp. 79-97 ◽  
Author(s):  
Priyanka Tripathi ◽  
S.K. Tiwari
Keyword(s):  
Larval Mortality ◽  
Adult Emergence ◽  
Potential Effect ◽  
Insect Growth Regulator ◽  
Corcyra Cephalonica ◽  
Adult Longevity ◽  
Growth Duration ◽  
Rice Moth ◽  
Lepidoptera Pyralidae ◽  
Pupal Mortality

Abstract The present investigation reveals the influence of methoprene, an IGR, on the ontogeny, growth duration and adult longevity of the rice moth Corcyra cephalonica. Twenty-five larvae of different instars (1st, 2nd, 3rd and 4th) of C. cephalonica were exposed to the juvenile hormone analogue methoprene in order to evaluate its potential effect on larval mortality, pupation, pupal mortality, adult emergence, growth duration and adult longevity. These different instars larvae were treated with 2, 4, 8 and 12 ppm of methoprene in an artificial diet (coarsely ground jowar mixed with 5% yeast powder) where the control received acetone alone. The results reveal significant differences in all the parameters mentioned above as compared to the control.

Susceptibility of some cow peas to infestation and damage by the storage beetle, Callosobruchus maculatus (Fabricius) (Goleoptera: Bruchidae)

1987 ◽  
Vol 108 (1) ◽  
pp. 137-139 ◽  
Author(s):  
T. I. Ofuya
Keyword(s):  
Seed Weight ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Developmental Period ◽  
Test Period ◽  
Seed Damage ◽  
100 Seed Weight

SummaryFourteen cow peas were tested for susceptibility to infestation and damage by Callosobruchus maculatus (F.) in the laboratory. IT81D-897 and Popse showed the lowest damage over a 3-month test period. 100-seed weight was not significantly correlated with seed damage.The developmental period of G. maculatus was significantly longer in IT81D-897 and Popse than in other cow peas tested. Percentage adult emergence and fecundity of females were also lowest in these two cow peas.

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.

Tryptophan Metabolism in Rice Moth Larva (Corcyra Cephalonica St.)

1953 ◽  
Vol 84 (3) ◽  
pp. 544-546 ◽  
Author(s):  
T. K. Sundaram ◽  
R. Radhakrishnamurty ◽  
E. R. B. Shanmugasundaram ◽  
P. S. Sarma
Keyword(s):  
Tryptophan Metabolism ◽  
Corcyra Cephalonica ◽  
Moth Larva ◽  
Rice Moth
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