Succession of Major Pests and Predators in  Okra (Abelmoschus esculentus (L.) Moench) Ecosystem

Das, R.; Saikia, Dilip; Devee, Anjumoni; Ahmed, S. S.

doi:10.20546/ijcmas.2021.1001.249

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Chakraborty et al (2014) documented nine species of coccinellids that were associated with insect pests of okra. However, transverse ladybird Coccinella transversalis F, seven spotted ladybird Coccinella septempunctata L and C. sexmaculata were commonly observed (Potai and Chandrakar, 2018;Bhatt et al, 2018;Raghuwanshi et al, 2019;Das et al, 2021); and these results corroborate with the present findings. Pooled data revealed spider (F=119.69; df= 3, 24; p < 0.0001) and coccinellid (F= 338.03; df= 3, 24; p < 0.0001) counts and among the treatment modules there was a highly significant difference (Table 1); spiders remained more or less consistent throughout the crop duration, while coccinellids gradually increased from 25 DAS, reached peak at 65 DAS and again declined to its lowest at 85 DAS.…”

Section: Resultssupporting

confidence: 91%

Impact of IPM Modules on Natural Enemies in Okra

C.,

2024

IJE

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Three modules viz., M1- integrated pest management (IPM) module, M2- bio-intensive pest management (BIPM) module and M3- farmer’s routine pest management module formulated against insect pests of okra were evaluated simultaneously at two locations to know their impact on spider and coccinellid predators. Seven and two species of spiders and coccinellids, respectively, were recorded. Pooled data revealed that BIPM module was found to be safe for the predators.

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Section: Resultssupporting

confidence: 91%

Impact of IPM Modules on Natural Enemies in Okra

C.,

2024

IJE

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“…Several insect pests damaged started from sowing to harvesting including fruit and shoot borer, whiteflies, aphid, jassid, thrips and mites. The most typical pests are aphids, whiteflies and jassids (Pal et al, 2013;Das et al, 2021). The infestation by jassid results in the necrosis of leaves and causes them to curl upward at the tips and edges.…”

Section: Introductionmentioning

confidence: 99%

Population Dynamics of Major Insect Pests of Okra in Relation to Weather Parameters

Gupta,

Yadav,

Maheshwari

et al. 2024

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Population dynamics of the insect is one of the important phenomena, which is continuously influenced by surrounding crops. The study of population insects can help to understand the interaction of the insect population and crops about extraneous weather factors. The present investigation is based on the population dynamics of major insect pests i.e. shoot and fruit borer, whitefly and jassids in the okra ecosystem and their correlation with various weather parameters. Okra is susceptible to several insect pests, leading to significant yield losses. This study revealed notable patterns in pest infestations during the crop's growth cycle. Shoot borer infestation began at 30 th Standard Week (SW) and reached its peak at 33 rd SW, with a maximum infestation of 17.6%. This infestation exhibited a significant positive correlation with minimum temperature, while maximum temperature and sunshine hours showed non-significant positive correlations. Fruit borer infestation commenced at 34 th SW, peaking at 21.8%, with minimum infestation (2.8%) observed at 40 th SW. Non-significant negative correlations were found between fruit borer infestation and maximum temperature, minimum temperature, and average relative humidity. Jassid infestation began at 30 th SW, reaching a maximum in 36 th SW and a minimum in 40 th SW. Significant positive correlations were observed with maximum temperature and sunshine hours, while minimum temperature showed a non-significant positive correlation. Whitefly infestation was first observed at 31 st SW and peaked at 35 th SW. The study found non-significant positive correlations with minimum temperature, maximum temperature, and sunshine hours, while non-significant negative correlations were identified with relative humidity and rainfall. Overall, this study contributes to understanding the interactions between insect pests and weather parameters in the okra ecosystem, facilitating more targeted and sustainable pest management.

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Succession of Major Pests and Predators in Okra (Abelmoschus esculentus (L.) Moench) Ecosystem

Cited by 2 publications

References 2 publications

Impact of IPM Modules on Natural Enemies in Okra

Impact of IPM Modules on Natural Enemies in Okra

Population Dynamics of Major Insect Pests of Okra in Relation to Weather Parameters

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