Relative abundance and damage of some insect pests of wheat under different tillage practices in rice–wheat cropping in India

Singh, Beant; Kular, J. S.; Ram, Hari; Mahal, M. S.

doi:10.1016/j.cropro.2014.03.005

Cited by 14 publications

(8 citation statements)

References 15 publications

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“…Reducing tillage provided better control for root aphids as well. The tillage operations broke up and loosened aggregated soil, which facilitated the easy movement of aphids and hence, their damage [10]. Similar trends were revealed for termites as well, with lower damage in ZT, followed by RT and CT. Termite damage decreased with a decrease in tillage intensity, with ZT recording the least damage (Figure 4).…”

Section: Discussionsupporting

confidence: 64%

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Tillage Intensity Influences Insect-Pest and Predator Dynamics of Wheat Crop Grown under Different Conservation Agriculture Practices in Rice-Wheat Cropping System of Indo-Gangetic Plain

et al. 2021

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Tillage can alter the soil habitats wherein many insect pests and their natural enemies reside during at least part of their life cycle. To enhance crop productivity and reduce climate change effects, conservation agriculture (CA) with reduced-tillage or no-tillage practices have been advocated to farmers. However, information relating to the effect of CA on insect pests and their natural enemies is very scarce, at least in the Indo-Gangetic region. In this study, the effect of tillage on the abundance of, and damage by, major insect pests (foliar aphids, root aphids, termites, and pink stem borer) and their natural enemies in wheat managed under three tillage practices, i.e., zero-till (ZT), reduced tillage (RT), and conventional tillage (CT) with (protected) and without (unprotected) insecticide protection scenarios, was investigated. Foliar aphid and termite numbers were lowest in the ZT-protected system, and highest in the CT-unprotected system. Pink stem borer damage was significantly higher in the ZT-unprotected system, whereas the root aphid number was maximum in the RT-unprotected system. The natural enemies of these four major insect pests of wheat showed variable trends under the studied tillage systems. The abundance and damage of these major insect pests showed a positive correlation with the normalized difference vegetative index (NDVI) and canopy temperature. The dynamics of the insect pests and their predators were driven by soil habitat-related changes (direct) as well as crop growth-related effects (indirect). A fine-tuning of insect-pest management tactics based on these relations would enhance the success of CA systems.

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Section: Discussionsupporting

confidence: 64%

“…Higher soil compaction and less porosity might lead to poor aeration, disfavouring termites. Termite survival and movement are lowered in compacted and poorly aerated soils [10,14]. Higher termite activity has also been reported in well-drained soils [24].…”

Section: Discussionmentioning

confidence: 98%

Tillage Intensity Influences Insect-Pest and Predator Dynamics of Wheat Crop Grown under Different Conservation Agriculture Practices in Rice-Wheat Cropping System of Indo-Gangetic Plain

et al. 2021

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“…Study results also revealed tillage-, residue- and weed shift-based pest population outbreaks after 4–5 years of the experimentation. The shift of pest population and associated crop loss due to increase of pest population in the full or partial CA production systems reported in several studies of Indo-Gangetic Plain 13 , 28 . Thus, the management strategies, i.e., crop rotation, crop residue management through tillage after certain years, weed management in crops and vicinity may be included for complete success of CA production system 26 .…”

Section: Discussionmentioning

confidence: 96%

“…Applying CA-based management principles within crop production not only changes soil organic matter (SOM), soil moisture, and nutrient regimes but also shifts the diversity of certain pests 24 – 27 . Pests are the major threat to crop production and their status changes with the adopted management practices in agro-ecosystem 13 , 28 . Since applying CA-based practices within an agroecosystem might shift pest density and diversity 13 , thus, the pest species that can adjust to certain CA management practices will outburst, while others will disappear.…”

Section: Introductionmentioning

confidence: 99%

Outburst of pest populations in rice-based cropping systems under conservation agricultural practices in the middle Indo-Gangetic Plains of South Asia

Kumar

Choudhary

Mishra

et al. 2022

Sci Rep

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Conservation agriculture (CA), which encompasses minimum soil disturbance, residue retention either through crop residue, or cover crops and crop diversification-based crop management practices can modify the status of pest dynamics and activities under the changing climatic scenarios. CA has been advocated extensively to optimize the use of available resources, maintain the environmental quality, enhance crop productivity, and reduce the climate change impacts. Information related to the impacts of long-term CA-production systems under rice-based cropping systems on pest status is lacking, particularly in middle Indo-Gangetic Plains (MIGP). Under CA, puddling is completely avoided, and rice is directly sown or transplanted to maintain better soil health. Different sets of experimentations including farmers practice, partial CA and full CA (CA) as treatments in rice-based cropping systems, were established from 2009, 2015 and 2016 to understand the long-term impacts of CA on pest dynamics. In this study, direct and indirect effects of tillage (zero, reduced and conventional tillage), residue retention and cropping sequences on abundance and damage by pests were investigated. After 4–5 years of experimentation, populations of oriental armyworm [Mythinma (Leucania) (Pseudaletia) separata (Wlk.)] in wheat, mealybug [Brevennia rehi (Lindinger)] and bandicoot rat [Bandicota bengalensis (Gray)] in rice were found to increase abnormally in CA-based production systems. Conventionally tilled plots had a significant negative effect while residue load in zero-tilled plots had a significant positive effect on larval population build-up of M. separata. Zero tillage had a higher infestation of mealybug (52–91% infested hills) that used grassy weeds (Echinochloa colona, Echinochloa crusgalli, Cynodon dactylon, Leptochloa chinensis and Panicum repense) as alternate hosts. Cropping sequences and no disturbance of soil and grassy weeds had higher live burrow counts (4.2 and 13.7 burrows as compared to 1.47 and 7.53 burrows per 62.5 m2 during 2019–2020 and 2020–2021, respectively) and damaged tillers (3.4%) in CA-based practices. Based on the present study, pest management strategies in CA need to be revisited with respect to tillage, residue retention on soil surface, grassy weeds in field and cropping sequences to deliver the full benefits of CA in MIGP to achieve the sustainable development goals under the climate change scenarios.

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“…Many insect pests and diseases are major constraints in limiting the wheat yield including termites, aphid, and pink stem borer (Dhaliwal et al, 2010). A higher population of pink rice borer has been reported from the wheat sown under zero tillage system after rice crop (Singh et al, 2014). Change in tillage system is supporting rice pink stem borer (Sesamia inferens) incidence in wheat crop.…”

Section: Introductionmentioning

confidence: 95%

Control Strategy for Rice Stem Borer in Wheat Crop by the Management of Rice Straw

Muhammad¹,

Hussain²,

Zubair³

et al. 2022

Plant Prot.

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Wheat is an important economic crop and major staple food all over the world including Pakistan. Among rice pests, the rice pink stem borer (Sesamia inferens Walker) has been reported on wheat crop for the last many years resulting in whiteheads in the wheat crop. This study was planned to determine the effect of rice straw management on the incidence of S. inferens on wheat crop in the rice-wheat cropping pattern of Multan, Punjab. There were five treatments including wheat sowing on non-rice field, zero tillage after burning rice stubbles, zero tillage without burning rice stubbles, rotavator after burning rice stubbles, and rotavator without burning rice stubbles. The results revealed that the maximum number of tillers/m2 (708) was produced in zero tillage after burning rice stubbles. The maximum incidence (1.75%) of S. inferens was observed in zero tillage without burning rice stubbles. In conclusion, the appropriate management of rice stubbles has an important role in the management of S. inferens in the wheat crop. The results proved that using a rotavator as a tillage tool before the sowing of the wheat crop has remarkably reduced the incidence of S. inferens. The burning of stubbles was statistically at par with zero tillage with the highest infestation and environmentally hazardous. Therefore, the destruction of rice stubbles through rotavator is the most effective tool against S. inferens.

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Relative abundance and damage of some insect pests of wheat under different tillage practices in rice–wheat cropping in India

Cited by 14 publications

References 15 publications

Tillage Intensity Influences Insect-Pest and Predator Dynamics of Wheat Crop Grown under Different Conservation Agriculture Practices in Rice-Wheat Cropping System of Indo-Gangetic Plain

Tillage Intensity Influences Insect-Pest and Predator Dynamics of Wheat Crop Grown under Different Conservation Agriculture Practices in Rice-Wheat Cropping System of Indo-Gangetic Plain

Outburst of pest populations in rice-based cropping systems under conservation agricultural practices in the middle Indo-Gangetic Plains of South Asia

Control Strategy for Rice Stem Borer in Wheat Crop by the Management of Rice Straw

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