Distribution of <i>Helicoverpa armigera</i> Hübner (Lepidoptera: Noctuidae) in tomato fields and its relationship to weather factors

Wakil, Waqas; Ghazanfar, Muhammad Usman; Kwon, Yong Jung; Qayyum, Mirza Abdul; Nasir, Fozia

doi:10.1111/j.1748-5967.2010.00301.x

Cited by 14 publications

(5 citation statements)

References 17 publications

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“…Relationship between Weather Parameters and Incidence of Gram Pod Borer, Helicoverpa armigera on Chickpea of Pandey et al (2012) and Sharma et al (2012) they recorded negative non-significant correlation between larval population and relative humidity. Umbarkar et al (2010), Wakil et al (2010) and Mahawar et al (2015) computed negative significant positive correlation with larval population and relative humidity; these findings are also supports present findings.…”

Section: Regression Analysis Between Larval Population Of H Armigera ...supporting

confidence: 90%

Relationship between Weather Parameters and Incidence of Gram Pod Borer, Helicoverpa armigera on Chickpea

Mehra

Singh

2021

IJARe

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Background: Chickpea, Cicer arietinum which is considered as a “King of pulses” get adversely affected by several biotic and abiotic stresses, out of which gram pod borer, Helicoverpa armigera (Hübner) is the major one. The damage caused by H. armigera starts from vegetative growth and continues till maturity of the crop. This pest is causes 25 to 70 per cent pod damage in chickpea but in favorable conditions pod damage goes upto 95 per cent. Methods: Present study was carried out during, rabi, 2014-15 and 2015-16 at Research Farm, College of Agriculture, Bikaner (Rajasthan). Correlation coefficient was worked out with weather parameters such as temperature (maximum and minimum), relative humidity (maximum and minimum), rainfall and sunshine hours. Multiple linear forms of regression model were also used to assess the effect of the weather parameters on the incidence of pod borer. Result: The studies revealed that peak larval population of gram pod borer was recorded in the second fortnight of February thereafter, population declined abruptly. The larval population of pod borer on chickpea occurred low at vegetative and flowering stages and high at pod formation as well as at grain developmental stages. The temperature (maximum and minimum) and sunshine hours had significant positive correlation with larval population during rabi, 2015-16. The maximum relative humidity showed significant negative correlation during rabi, 2015-16 whereas, minimum relative humidity showed significant negative correlation with larval population during both the seasons. The rainfall showed significant positive correlation during rabi, 2014-15.

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Section: Regression Analysis Between Larval Population Of H Armigera ...supporting

confidence: 90%

Relationship between Weather Parameters and Incidence of Gram Pod Borer, Helicoverpa armigera on Chickpea

Mehra

Singh

2021

IJARe

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“…elicoverpa armigera Hübner (Lepidoptera: Noctuidae), a major polyphagous insect pest of many crops (Marzban et al, 2009), has a wide geographical range, mobility, migratory potential, facultative diapause, high fecundity and a great tendency to develop resistance against insecticides, key factors that determine its importance as insect pest (Fitt, 1989;Zalucki, 1991;Wakil et al, 2009a;2009b;2010). Excessive use of synthetic insecticides worldwide warrants environmental and human health concerns, and urges researchers to develop safer alternatives for eco-friendly pest management (Cherry et al, 1997).…”

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confidence: 99%

Insecticidal Efficacy of Azadirachta indica, Nucleopolyhedrovirus and Chlorantraniliprole Singly or Combined against Field Populations fo Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)

Wakil

Ghazanfar

Nasir

et al. 2012

Chilean J. Agric. Res.

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The development of resistance in cosmopolitan insect Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) forced the researchers for alternative control measures. In the present study, insecticidal efficacy of formulations of Azadirachta indica, a Nucleopolyhedrovirus (NPV), and new anthranilic diamide insecticide (chlorantraniliprole) formulations was determined against 2 nd , through 5 th larval instars of H. armigera collected from diverse geographical locations in the Punjab province, Pakistan. Azadirachta indica was applied at 5 µL L -1 ; NPV at 2.1 × 10 5 polyhedral occlusion bodies (POB) mL -1 and chlorantraniliprole at 0.01 µL L -1 , either alone or in combinations with each other. The bioassays were conducted at 27 ± 1 °C and 65 ± 5% relative humidity. The mortality varied greatly among treatments, larval instars, and locations. The combinations of NPV with A. indica and chlorantraniliprole caused higher mortality, pupation and produced an additive effect compared to their application singly in all the tested populations. The population from Rawalpindi was always susceptible while the Gujranwala was the resistant. The results herein suggest that the effectiveness of NPV and A. indica can be improved by the presence of chlorantraniliprole against the larvae of H. armigera.

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“…Maximum and minimum temperature and maximum relative humidity did not show any significant correlation. Wakil et al (2010) has reported that temperature was positively correlated. While, relative humidity showed negative interaction with the larval and fruit infestation.…”

Section: Resultsmentioning

confidence: 99%

Seasonal Incidence of Insect-pests in Tomato (Lycopersicon esculantumM.) on Different Planting Dates and its Correlation with Abiotic Factors

Waluniba¹,

Ao²

2014

Inter. Jour. of Bio-reso. Stress Manag.

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Experiment conducted in the year 2010-2011 at experimental cum research farm, School of Agriculture Sciences and Rural Development, Nagaland University, showed that the incidence of aphids (Aphis gossypii) was observed at 52 nd , 2 nd and 4 th , whitefly (Bemisia tabaci) at 4 th , 7 th and 9 th , Serpentine leaf miner (Liriomyza trifolii) at 4 th , 7 th and 9 th and fruit borer (Helicoverpa armigera) at 9 th , 11 th and 13 th standard week on D 1 , D 2 and D 3 respectively. The incidence of aphid correlating with abiotic factors showed negative significant influence by maximum temperature at 4 th December planting date, whitefly showed negative significant influence on 4 th December planting date, leaf miner showed positive significant effect with maximum and minimum temperature in all the planting dates and also minimum relative humidity on 19 th December planting showed positive significant effect and in case of tomato fruit borer it showed a positive significant effect with maximum temperature and minimum relative humidity at 19 th November and 19 th December planting respectively.

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Distribution of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) in tomato fields and its relationship to weather factors

Cited by 14 publications

References 17 publications

Relationship between Weather Parameters and Incidence of Gram Pod Borer, Helicoverpa armigera on Chickpea

Relationship between Weather Parameters and Incidence of Gram Pod Borer, Helicoverpa armigera on Chickpea

Insecticidal Efficacy of Azadirachta indica, Nucleopolyhedrovirus and Chlorantraniliprole Singly or Combined against Field Populations fo Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)

Seasonal Incidence of Insect-pests in Tomato (Lycopersicon esculantumM.) on Different Planting Dates and its Correlation with Abiotic Factors

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