Population dynamics of major insect pest of blackgram<i>[Vigna Mungo</i>(L.) Hepper] in relation to weather parameters

Kumar, Manoj; Singh, Paramjit

doi:10.5958/2230-732x.2016.00088.7

Cited by 10 publications

(16 citation statements)

References 2 publications

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“…The population of whitefly showed non-significant positive correlation with temperature (maximum and minimum) and rainfall and showed nonsignificant negative correlation with relative humidity (Table 2). These findings are in accordance with the findings of Singh andKumar (2011), Yadav et al, (2015) and Kumar and Singh (2016).…”

Section: Resultssupporting

confidence: 93%

Seasonal Incidence of Major Insect-Pests on Blackgram, Vigna mungo (Linn.) and Its Correlation with Weather Parameters

Singh¹,

Chandra²,

Mohapatra³

2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultssupporting

confidence: 93%

Seasonal Incidence of Major Insect-Pests on Blackgram, Vigna mungo (Linn.) and Its Correlation with Weather Parameters

Singh¹,

Chandra²,

Mohapatra³

2018

Int.J.Curr.Microbiol.App.Sci

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“…The thrips population showed positive association with the atmospheric temperature. These results are in line with Vijayalakshmi et al (2017) [7] in groundnut and Kumar and Singh (2016) [8] in blackgram. The prevailing weather conditions play a major role in thrips and leaf curl disease outbreak.…”

Section: Discussionsupporting

confidence: 91%

“…The clear weather conditions with no rains associated during the crop growth period has favored the thrips population. Vijayalakshmi, 1994 who has studied the epidemiology of thrips and leaf curl disease stated that higher temperatures coupled with 70 ± 10 RH and bright sunshine hours will favor the thrips outbreak which were in corroboration with Krishnaveni (1998) [9] ; Funderburk (2012); Jamuna et al (2019) [11] in groundnut and Kumar and Singh (2016) [8] in blackgram.…”

Section: Discussionmentioning

confidence: 84%

Influence of temperature and relative humidity on population dynamics of thrips and leaf curl disease incidence in blackgram genotypes

Rahul¹,

G²,

Jayalalitha³

et al. 2020

Int. J. Chem. Stud.

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The insect pests and diseases of blackgram continue to pose a serious threat to the plant growth and yield. The sucking pests in blackgram are economically most important that not only cause the direct damage by feeding but also by transmission of different viral diseases. Sucking pest complex in blackgram include an array of sucking pests out of which thrips, whitefly and aphids are the most important. The leaf curl disease caused by GBNV in blackgram is transmitted through thrips. A study was conducted involving 25 blackgram genotypes to screen them against leaf curl disease. The results obtained from the study indicated that the leaf curl disease incidence (%) and thrips population (Number plant -1 ) varied significantly among the genotypes. Late sowing of the crop coincided with higher temperatures, lower relative humidity and high vector population resulting in higher leaf curl disease incidence. The correlation studies indicated that the leaf curl disease incidence (%) was negatively associated with the mean and morning relative humidity (%) and positively associated with mean, maximum and minimum temperatures.

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“…Reproductive stage was more vulnerable than vegetative and maturity stage. These findings also supported by Kumar and Singh (2016).…”

Section: Flower Thripssupporting

confidence: 74%

Seasonal Variation in Incidence of Insect Pests Occurring on Black Gram [Vigna mungo (Linn.) Hepper] in Lower Gangetic Plains of West Bengal

Biswas¹,

Banerjee²

2019

Int.J.Curr.Microbiol.App.Sci

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The experiment was conducted in the 'A-B' Block Farm of Bidhan Chandra Krishi Viswavidyalaya situated at Kalyani, Nadia, West Bengal during both summer and kharif seasons of 2016 with an objective to study the seasonal variation in incidence of insect pests on two varieties of black gram viz. Pant U-31 and Pant U-19 as well as their relationship with abiotic factors in the lower Gangetic plains of West Bengal. The results revealed Aphis craccivora, Bemisia tabaci, Megalurothrips distalis, Maruca vitrata, Helicoverpa armigera, Spilarctia obliqua as the major pests of the crop. Whitefly population on black gram reached its peak in 5 WAS in both the seasons. Maximum aphid population has been recorded in 6 WAS and 7 WAS during summer and kharif seasons, respectively. Flower thrips was recorded highest 9 WAS during both the seasons. Gram pod borer population has been recorded maximum in 8 WAS and 7 WAS during summer and kharif seasons, respectively. Spotted pod borer population reached its peak in 10 WAS in both the seasons, while, hairy caterpillar population has been recorded highest in 5 WAS in both the seasons. In black gram, whitefly population was significantly and negatively correlated with both temperatures irrespective of season, however, it was significantly and positively correlated with minimum relative humidity in summer season, but it was negative correlation during kharif season. Both the temperatures were significantly and positively correlated with aphid population during summer, but during kharif minimum temperature only was positively correlated with the pest population. In case of flower thrips, the pest population was significantly and positively associated with minimum relative humidity during summer season but the association was reverse during kharif season. The correlation of gram pod borer population in black gram with all the weather parameters were found non-significant irrespective of season and crop variety. Spotted pod borer population significantly and negative correlated with maximum temperature during both seasons, however, a significant and positive correlation with minimum relative humidity and rainfall, negative correlation with minimum temperature during summer and positive correlation with bright sunshine hour were also observed. Significantly negative correlations were found with hairy caterpillar population and both the relative humidity and rainfall, while, the association was significantly positive with both the temperature and bright sunshine hour during summer.

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Population dynamics of major insect pest of blackgram[Vigna Mungo(L.) Hepper] in relation to weather parameters

Cited by 10 publications

References 2 publications

Seasonal Incidence of Major Insect-Pests on Blackgram, Vigna mungo (Linn.) and Its Correlation with Weather Parameters

Seasonal Incidence of Major Insect-Pests on Blackgram, Vigna mungo (Linn.) and Its Correlation with Weather Parameters

Influence of temperature and relative humidity on population dynamics of thrips and leaf curl disease incidence in blackgram genotypes

Seasonal Variation in Incidence of Insect Pests Occurring on Black Gram [Vigna mungo (Linn.) Hepper] in Lower Gangetic Plains of West Bengal

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