Seasonal incidence of brinjal shoot and fruit borer, leucinodes orbonalis guenee, (Lepidoptera: Crambidae) during Kharif Season in 2017 (original) (raw)
Related papers
2018
The seasonal incidence of Leucinodes orbonalis Guenee on brinjal was studied at central research farm of the Department of Entomology, SHUATS, Allahabad during Kharif season of 2017. The occurrence of shoot and fruit borer commenced from 39standard week on shoot with an average 14.94% of damaged shoot. The borer population increased and gradually reached peak level of 44.67% of damaged shoot at 42 standard week. Infestation on Fruit commenced from 42 standard week with an average 45.83% of damaged fruit (Number basis) and 43.43% (Weight basis) during the experiment. The borer population increased and gradually reached peak level of 57.50% of damaged fruit (Number basis) and 55.90% of damaged fruit (weight basis) at 44 standard week and thereafter decline in the trend was noticed till 47 standard week. It was found that the pest build up on shoot (Damage % number basis) was positively correlated with maximum temperature (r = 0.703) and sun shine hours (r = 0.589). However it was nega...
Journal of entomology and zoology studies, 2020
To study the pest incidence of shoot and fruit borer, Leucinodes orbonalis, Guenee on brinjal during kharif season of 2019. Studies on the incidence of shoot infestation of Leucinodes orbonalis Guenee 2019 Kharif season was commenced from 32 standard week (August first week) on shoot with an average 0.32% infestation. The borer population increased and gradually reached peak level of 34.62% of larval population at 42 standard week (October third week) and decline in the trend was noticed this may be due to fail in congenial weather parameters. The pest builds up was correlating with max temperature and declined as it falls followed by the incidence of fruit infestation of Leucinodes orbonalis Guenee 2019 Kharif season commenced from 35 standard week (Last week of August) on shoot with an average 0.83% infestation. The borer population increased and gradually reached peak level of 41.28% of larval population at 46 standard week (second week of November) and decline in the trend was n...
Journal of entomology and zoology studies, 2020
The present study entitled, “To study the seasonal incidence of shoot and fruit borer, (Leucinodes orbonalis Guenee) on brinjal during Kharif season of 2016 in Trans Yamuna region of Allahabad” was undertaken at the Central Research Farm, SHUATS, Allahabad. The data so obtained through observation on various aspects were subjected to statistical analysis wherever necessary and the data was compiled. Results, thus obtained are presented aspect wise as the occurrence of Leucinodes orbonalis Guenee in Per cent shoot infestation was recorded in 2016 Kharif season was commenced from 34rd standard week (August third week) on shoot with an average 3.85 % infestation. The borer population increased and gradually reached peak level of 33.5% of larval population at 42nd standard week (October third week) and decline in the trend was noticed this may be due to fall in congenial weather parameters and the per cent fruit data showed that from 39th standard week (third week of September) on shoot...
Pure and Applied Biology, 2017
The present study investigated the population dynamics of the brinjal shoot and fruit borer Leucinodes orbonalis Guen (Pyralidae: lepidoptera) (an important pest of brinjal crop in Pakistan) to know that how weather parameters affect the population of the pest. For this purpose, brinjal crop was grown in three selected districts i.e. Peshawar, Mardan and Charsadda of khyber Pakhtunkhwa. The population dynamics in terms of adults attracted to pheromone traps recorded fortnightly and were correlated with the maximum and minimum temperature (0 C), % relative humidity and total rainfall. Results showed a significant (P<0.05) effect of allweather parameters on population of L. orbonalis in different locations. Weather parameters contributed an average change in pest population ranged from 62.39 to 78.98% during 2011 and 57.82 to 82.49% during 2012 in all districts. Results also showed that mean maximum temperature had a significant positive correlation with population of L. orbonalis but non-significant positive correlation with mean minimum temperature and maximum relative humidity. Similarly a negative correlation with mean minimum relative humidity and total rain fall was recorded during both the years.
Journal of Entomology and Zoology Studies, 2020
The present investigation was carried out during the Kharif season, 2017-18 at Student's Instructional Farm, N. D. University of Agriculture and Technology, Kumarganj, Faizabad (U.P.). The incidence of brinjal shoot and fruit borer (Leucinodes orbonalis) were recorded. Maximum and minimum shoot infestation was recorded in 48 th SW and 4 th SW i.e. 7.42 and 0.13 shoot damage/plant respectively. Maximum and minimum fruit infestation was recorded in 48 th SW and 4 th SW i.e. 8.04 and 0.81 fruit damage/plant respectively. Correlation coefficient was worked out between the incidence of insect pests and abiotic factors. In case of shoot infestation by brinjal shoot and fruit borer, the correlation was positive with maximum temperature while it was negative with minimum temperature, RH and rainfall. In case of fruit infestation by brinjal shoot and fruit borer, the correlation was negative with minimum and maximum temperature as well as with RH and rainfall.
International Journal of Bio-resource and Stress Management, 2014
Article History Correspondence to Keywords Manuscript No. AR691 The study on the variation in larval population of brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis Guene was carried out during rainy, winter and summer seasons of 2009-10 and 2010-11 at Keonjhar district of Odisha under field conditions. During rainy season, the larval infestation initiated in last week of June and increased progressively with two distinct peak level. The first peak was observed during 2 nd and 3 rd week of August and the second one was attained during 3 rd week of September and 1 st week of October, respectively in 2009 and 2010. In the winter season, the larvae of BSFB appeared for the first time 4 th week of October with two subsequent peak population level during the crop growth period. The initial peak was attained during 3 rd and 1 st week of December for 2009-10 and 2010-11, respectively and the subsequent peak was observed at 3 rd week of February for both the years of study. In contrast, in the summer season the larvae of BSFB first appeared on 4 th week of January during both the years of trial and registered an increasing trend to attain two well defined peaks during the crop growth period. The first peak larval population was observed during 1 st fortnight of April followed by the second peak during 3 rd week of May. Among the ecological parameters temperature exerted positive and relative humidity had negative influence on the pattern of larval population variation. These two weather variable had maximum contribution towards the variation in larval intensity. *
Biological studies on brinjal shoot and fruit borer, Leucinodes orbonalis Guenee
Journal of entomology and zoology studies, 2018
The biology of brinjal shoot and fruit borer, Leucinodes orbonalis, was studied on brinjal variety Punjab Sada bahar. The different parameters of biology viz. incubation period, larval period, pupal period, oviposition, fecundity, adult longevity and sex ratio were studied during different months i.e. June, August and October. The results revealed that there was significant difference in duration of all the biological parameters during three different seasons and minimum duration of incubation period (3.19 days), larval period (11.31 days), pupal period (7.11 days) was observed during August when mean temperature and relative humidity was 29.5 oC and 79.25 per cent respectively. The total life span was observed to be short during August followed by June and October.