Seasonal Incidence of Tomato Fruit Borer, Helicoverpa armigera (Hubner) and Its Correlation with Abiotic Factors: An Experimental Investigation

Yadav, Sneh; Pal, R. K.; Yadav, Ajay Kumar; Yadav, Avadhesh; Singh, Gurwaan

doi:10.9734/ijpss/2022/v34i2231535

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The present results are in conformity with that of Yadav and Jat (2009) who noticed the infestation of H. armigera on chickpea in the second fortnight of November and peak in the end of February. They also observed that the larvae throughout the growth period of crop and was maximum at pod formation and grain developmental stages.…”

Section: Resultssupporting

confidence: 93%

“…1, 2). The present findings are conformity with that of Yadav and Jat (2009), Kulhari and Singh (2008) and Malik et al (2015) which reported positive correlation of larval incidence with both maximum and minimum temperatures. Reddy et al (2009), Shinde et al (2013), Kachhawa et al (2016), Sagar et al (2019) and Meena et al (2023) reported positive correlation with both minimum and maximum temperatures and negative correlation with morning and afternoon relative humidity.…”

Section: Resultssupporting

confidence: 93%

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Population Dynamics of Pod Borer <i>Helicoverpa armigera</i> (Hubner) on Chickpea

Choudhary,

Deshwal,

Bana

2024

IJE

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A field experiment was carried out to study the population dynamics of pod borer Helicoverpa armigera (Hubner) on chickpea at the Agronomy Farm, College of Agriculture, Swami Keshwanad Rajasthan Agricultural University, Bikaner during two consecutive seasons i.e. rabi 2021-22 and 2022-23. The incidence commenced from first and second week of December i.e. 49th and 50th Standard Metrological Week (SMW) and disappeared in the first fortnight of January. Incidence again started from the third week of January (3rd SMW) which increased gradually and reached peak (6.4 and 5.2 larvae/ m row) in the third and second week of February (8th and 9th SMW) during first and second season. These peaks coincided with the vegetative, flowering, and podding stages. The correlation studies showed that incidence has a positive significant correlation with temperatures (p<0.01) while, morning (r = -0.609 and -0.640, p<0.05) and evening relative humidity (r = -0.728, p<0.01 & -0.666, p<0.05) showed negative significant correlation. Further, stepwise linear regression model indicated that maximum temperature as single predicator independent variable had the strongest relationship with incidence based on high R2 value (61% and 63.40%). This forewarning regression model may help the farmers to take advance decision so as to minimize the damage caused by pod borer on chickpea.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 93%

Population Dynamics of Pod Borer <i>Helicoverpa armigera</i> (Hubner) on Chickpea

Choudhary,

Deshwal,

Bana

2024

IJE

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“…Abiotic parameters played a key role in build-up of larval population. Similarly, Singh and Ali [15] Singh et al [16] Yadav et al [17] have also recorded two peaks in the larval population of H. armigera throughout the crop season, first from 46 th to 49 th and second from 5 th to 13 th standard weeks. Shinde et al [18] Pal et al [14] Meena et al [19] recorded relative abundance of H. armigera in chickpea peaked twice: the first was during the 47 th to 50 th standard weeks and the second from the 10 th to the 14 th standard weeks in both years.…”

Section: Resultsmentioning

confidence: 79%

Studies on Seasonal Incidence of Gram Pod Borer, Helicoverpa armigera (Hubner) on Chickpea Crop

Yadav,

Singh,

Umrao

et al. 2024

IJECC

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The present investigations entitled “Studies on seasonal incidence of gram pod borer, Helicoverpa armigera (Hubner) on chickpea crop” were carried out at the Student’s Instructional Farm, Nawabganj of C. S. Azad University of Agriculture and Technology, Kanpur during Rabi season 2021-22 and 2022-23. The highest mean larval populations 4.53 larvae per plant in 2021-22 were observed during 6th std. week and in 2022-23 it was 4.10 larvae per plant were observed during 7th std. week. However, lowest mean larval population 0.10 larvae per plant in 2021-22 was observed during 46th std. week and in 2022-23 it was 0.07 per plant during 47th std. week. The correlation co-efficient with the population of H. armigera was positively correlated with minimum (0.733 during 2021-22 and 0.893 during 2022-23) and negatively correlated with maximum (-0.779 during 2021-22 and -0.330 during 2022-23) temperatures, respectively. However, it was negatively correlated (-0.812) in 2021-22 and (-0.609) in 2022-23 with relative humidity. While, rainfall had a positively correlated (0.569) in 2021-22 and (0.003) in 2022-23.

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“…evening RH had a negative impact on the incidence pattern of H. armigera. Findings reported byYadav and Jat (2009) also proved that changes in population were not influenced by RH and rainfall, but a notable positive correlation existed between the population of gram pod borer and both maximum and minimum temperatures. Similarly, according toSolangi et al (2016) temperature and RH had…”

mentioning

confidence: 64%

“…The larval population was found to be prevalent from the pod formation stage until maturity. Yadav and Jat (2009) also recorded maximum infestation of Helicoverpa from pod formation to grain development stage. Kumar and Bisht (2013) reported highest larval population at pod formation stage and report of Meena and Bhatia (2014) in Rajasthan showed that peak incidence of H. armigera was generally occurred in flowering and pod formation stage which is comparable to the current findings.…”

Section: Pattern Of Incidence Of Larval Population Of Gram Pod Borer ...mentioning

confidence: 89%

Population Fluctuation of Gram Pod Borer in Rabi Pulses of West Bengal

Bera,

Ray,

Banerjee

2023

Res. Bio.

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During the rabi season of 2021-22, a field research has been carried out at BCKV [District Seed Farm (AB Block)] Kalyani, Nadia, West Bengal for studying the pattern of incidence of gram pod borer or tomato fruit borer (Helicoverpa armigera Hubn.) in relation with prevailing meteorological parameters and to record the population fluctuation in four rabi pulse crops, viz., chickpea (var. KWR 108 and JAKI 9218), fieldpea (var. Rachna and VL 42), lentil (var. IPL 220 and L 4727) and grasspea (var. Prateek and Ratan). During the vegetative stage of the fieldpea, the Helicoverpa population first emerged, then gradually increased and declined near maturity; in lentil and grasspea it was recorded from flowering stage and persisted until maturity; in chickpea it was noticed from pod formation stage and continued up to maturity. None of the weather variables were significantly correlated with the Helicoverpa larvae population recorded on fieldpea and lentil while, regression studies denote that maximum (Max. T) and minimum (Min. T) temperature exhibited the most impact on the occurrence of Helicoverpa in grasspea and chickpea, respectively. The comparative study revealed that, Helicoverpa first appeared on lentil and field pea during the first week of January; then population appeared on grasspea during the end of second fortnight of January. Occurrence of the pest was noticed on lentil, field pea and grasspea in January and February and after that the population shifted to grasspea, fieldpea and chickpea during February to March. Chickpea was the most preferred crop as the highest population observed on this crop coinciding with pod formation stage.

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Seasonal Incidence of Tomato Fruit Borer, Helicoverpa armigera (Hubner) and Its Correlation with Abiotic Factors: An Experimental Investigation

Cited by 3 publications

References 2 publications

Population Dynamics of Pod Borer <i>Helicoverpa armigera</i> (Hubner) on Chickpea

Population Dynamics of Pod Borer <i>Helicoverpa armigera</i> (Hubner) on Chickpea

Studies on Seasonal Incidence of Gram Pod Borer, Helicoverpa armigera (Hubner) on Chickpea Crop

Population Fluctuation of Gram Pod Borer in Rabi Pulses of West Bengal

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