Effect of crop management and landscape context on insect pest populations and crop damage

Rusch, Adrien; Valantin‐Morison, Muriel; Sarthou, Jean-Pierre; Roger-Estrade, Jean

doi:10.1016/j.agee.2011.05.004

Cited by 90 publications

(105 citation statements)

References 44 publications

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“…Inappropriate fertilization can affect crop health, with a too low or an excessive provisioning of nitrogen weakening plants (Altieri and Nicholls, 2003). Rusch et al (2013b) reported on oilseed rape crops that the number of damaged buds by pollen beetles was negatively related to the nitrogen index and positively correlated with the proportion of non-crop habitats. However, in this same study, the abundance of pollen beetles was not determined by the crop nitrogen status, but only by landscape complexity.…”

Section: Interactions Between Local and Landscape Scalementioning

confidence: 99%

Spatial diversification of agroecosystems to enhance biological control and other regulating services: An agroecological perspective

Hatt

Boeraeve

Artru

et al. 2018

Science of The Total Environment

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Spatial diversification of crop and non-crop habitats in farming systems is promising for enhancing natural regulation of insect pests. Nevertheless, results from recent syntheses show variable effects.One explanation is that the abundance and diversity of pests and natural enemies are affected by the composition, design and management of crop and non-crop habitats. Moreover, interactions between both local and landscape elements and practices carried out at different spatial scales may affect the regulation of insect pests. Hence, research is being conducted to understand these interdependencies.However, insects are not the only pests and pests are not the only elements to regulate in agroecosystems. Broadening the scope could allow addressing multiple issues simultaneously, but also solving them together by enhancing synergies. Indeed, spatial diversification of crop and non-crop habitats can allow addressing the issues of weeds and pathogens, along with being beneficial to several other regulating services like pollination, soil conservation and nutrient cycling. Although calls rise to develop multifunctional landscapes that optimize the delivery of multiple ecosystem services, it still represents a scientific challenge today. Enhancing interdisciplinarity in research institutions and building interrelations between scientists and stakeholders may help reach this goal. Despite obstacles, positive results from research based on such innovative approaches are encouraging for engaging 2 science in this path. Hence, the aim of the present paper is to offer an update on these issues by exploring the most recent findings and discussing these results to highlight needs for future research.

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Section: Interactions Between Local and Landscape Scalementioning

confidence: 99%

Spatial diversification of agroecosystems to enhance biological control and other regulating services: An agroecological perspective

Hatt

Boeraeve

Artru

et al. 2018

Science of The Total Environment

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“…However, these responses will depend on the biology of the crop pest species examined. For example in some cases herbivore density or damage has been found to be negatively related (Ricci et al, 2009) or unrelated (Jonsen and Fahrig, 1997;Thies et al, 2008) to the cover of their host crop species or more closely positively related to the cover of natural areas, such as woodland and grassland (Rusch et al, 2013b) at the landscape scale. In the case of C. cinctus, our results suggest that wheat fields are likely an important source habitat for this pest in the landscape while more natural grassland habitats appear to be relative sinks.…”

Section: Pest Response To Landscape Compositionmentioning

confidence: 99%

Increased area of a highly suitable host crop increases herbivore pressure in intensified agricultural landscapes

Rand

Waters

Blodgett

et al. 2014

Agriculture, Ecosystems & Environment

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Landscape simplification associated with agricultural intensification has important effects on economically important arthropods. The declining cover of natural and semi-natural habitats, in particular, has been shown to reduce natural-enemy attack of crop pests, but also in some cases reduced crop colonization by such pests. In this study, we examined the influence of changes in two elements of landscape composition, natural grassland cover and cover of a highly suitable crop host, on infestation by a generalist insect pest in wheat, and parasitism of this pest by its dominant natural enemies. Surprisingly, we found no significant influences of increasing natural grassland habitat, at either local or landscape scales, on infestation by the wheat stem sawfly, Cephus cinctus, or parasitism of this pest by the native parasitoid wasps, Bracon cephiand Bracon lissogaster. In contrast, we found significant increases in levels of C. cinctus infestation with increasing wheat cover at the landscape scale. This pattern was consistent across six study regions spanning three states in the northern Great Plains of North America, despite large differences in cropping systems and pest population densities across regions. Regional variation in pest infestation was best explained by long-term averages in precipitation, with higher C. cinctus infestation rates found in drier regions. Results suggest that landscape-mediated variation in pest pressure in this system is better explained by a direct response of pest insects to increasing cover of a highly suitable crop rather than an indirect response via reductions in natural enemies as natural habitat declines. The implication is that habitat diversification at the landscape scale could play a role in suppressing agricultural pest populations via reductions in area of suitable crop hosts. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. b s t r a c tLandscape simplification associated with agricultural intensification has important effects on economically important arthropods. The declining cover of natural and semi-natural habitats, in particular, has been shown to reduce natural-enemy attack of crop pests, but also in some cases reduced crop colonization by such pests. In this study, we examined the influence of changes in two elements of landscape composition, natural grassland cover and cover of a highly suitable crop host, on infestation by a generalist insect pest in wheat, and parasitism of this pest by its dominant natural enemies. Surprisingly, we found no significant influences of increasing natural grassland habitat, at either local or landscape scales, on infestation by the wheat stem sawfly, Cephus cinctus, or parasitism of this pest by the native parasitoid wasps, Bracon cephi and Bracon lissogaster. In contrast, we found significant increases in levels of C. cinctus infestation with increasing wheat cover at the landscape scale. Thi...

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“…Van Dusen (1988) demonstrated that high rates of nitrogen fertilization cause an increase of S. frugiperda infection when compared to other insect pest populations. Additionally, the low abundance of insect herbivores on organic crops has been attributed to low plant nitrogen content (Jahn et al, 2005;Birkhofer et al, 2008;Altieri et al, 2012;Jactel et al, 2012;Rusch et al, 2013). Phelan et al (1995) demonstrated that, under greenhouse conditions, females of Ostrinia nubilalis Hübner (Lepidoptera: Pyralidae) oviposited significantly more eggs in maize plants cultivated with chemical fertilizers nitrogenous than in plants cultivated with organic soils with manure cow.…”

Section: Introductionmentioning

confidence: 99%

“…The use of chemical fertilizers nitrogenous strengthens maize plant vigor, but these plants become more "desirable" to insect pests such as S. frugiperda (Rusch et al, 2013). The synthetic insecticides used in the control of this insect pest could be dangerous to the environment and to human health; alternatively, the use of organic fertilization and/or botanic insecticides improves soil fertility, reduces maize damage, and increases production (Montes-Molina et al, 2008;Ratnadass et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen fertilization sources and insecticidal activity of aqueous seeds extract of Carica papaya against Spodoptera frugiperda in maize

Figueroa‐Brito

Villa-Ayala²,

López-Olguín³

et al. 2013

Cienc. Inv. Agr.

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Each shoot was infested with one first instar larva of S. frugiperda. The variables measured included the percentage of germination, length of the second and fifth leaves, stem diameter and plant height, and the estimation of damage caused by S. frugiperda larvae on maize. The results indicated that vermicompost helped seed germination on a relation 3:1 from black soil and vermicompost, the emergence was 100%, while the emergence with black soil was 80%. The ammonium sulfate increased the length of the second and fifth leaves 89.6% and 160.4% respectively, augmented the stem diameter and the plant height 290.2% and 13.3% respectively, respect to water treatment. The exogenous nitrogen sources stimulate S. frugiperda to cause more damage to the plant, the treatment urea showed 70% of damage, with phosphonitrate 62.3% and with ammonium sulfate 51.8%, when were evaluated without aqueous seed extract of C. papaya. Ammonium sulfate + aqueous extract of C. papaya seeds showed the lowest insect damage to maize with 29.6%.

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Effect of crop management and landscape context on insect pest populations and crop damage

Cited by 90 publications

References 44 publications

Spatial diversification of agroecosystems to enhance biological control and other regulating services: An agroecological perspective

Spatial diversification of agroecosystems to enhance biological control and other regulating services: An agroecological perspective

Increased area of a highly suitable host crop increases herbivore pressure in intensified agricultural landscapes

Nitrogen fertilization sources and insecticidal activity of aqueous seeds extract of Carica papaya against Spodoptera frugiperda in maize

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