The Impact of Climate Change on Agricultural Insect Pests

Skendžić, Sandra; Zovko, Monika; Živković, Ivana Pajač; Lešić, Vinko; Lemić, Darija

doi:10.3390/insects12050440

Cited by 400 publications

(164 citation statements)

References 185 publications

(269 reference statements)

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“…Among the BC agents, larval parasitoid species have been reported to efficiently control open-field crop pests and are also largely used in the containment of stem borers (Bale et al, 2008;Cugala & Omwega, 2001;Dejen et al, 2013). However, species' responses to CC differ (Ladányi & Horváth, 2010) and established interactions of species used in BC programs may be disrupted (Mwalusepo et al, 2015;Skendžić et al, 2021;Thomson et al, 2010). Such climate-induced disruptions have the potential to render proven BC relationships ineffective (Thomson et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Uncertainties In The Effectiveness of Biological Control of Stem Borers Under Different Climate Change Scenarios In Eastern Africa

Jendritzki¹,

Tonnang²,

Calatayud³

et al. 2021

Preprint

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Climate change (CC) is expected to significantly affect biodiversity and ecosystem services. Adverse impacts from CC in the Global South are likely to be exacerbated by limited capacities to take adequate adaptation measures and existing developmental challenges. Insect pests today are already causing considerable yield losses in agricultural crop production in East Africa. Studies have shown that insects are strongly responding to CC by proliferation, shift in distribution or by altering their phenology, which is why an impact on agriculture can also be expected. Biological control (BC) has been proposed as an alternative measure to sustainably contain insect pests but few studies predict its efficacy under future CC. Using the species distribution modelling approach Maxent, we predict the current and future distribution of three important lepidopteran stem borer pests of maize in eastern Africa, i.e., Busseola fusca (Fuller, 1901), Chilo partellus (Swinhoe, 1885) and Sesamia calamistis (Hampson, 1910), and two of their parasitoids that are currently used for BC, i.e., Cotesia flavipes (Cameron, 1891) and Cotesia sesamiae (Cameron, 1906) . Based on these potential distributions and data collected during household surveys with local farmers in Kenya and Tanzania, future maize yield losses are predicted for a business-as-usual scenario and a sustainable development scenario. Accordingly, we found that BC of the three stem borer pests by C. flavipes and C. sesamiae will be less effective under more severe CC resulting in a reduced ability to curb maize yield losses caused by the stem borers. These results highlight the need to adapt BC measures to future CC to maintain its potential for environmentally-friendly pest management strategies. The findings of this research are thus of particular relevance to policy makers, extension officers and farmers in the region and will aid the adaptation of smallholder agricultural practices to current and future impacts of CC.

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Section: Introductionmentioning

confidence: 99%

Uncertainties In The Effectiveness of Biological Control of Stem Borers Under Different Climate Change Scenarios In Eastern Africa

Jendritzki¹,

Tonnang²,

Calatayud³

et al. 2021

Preprint

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“…It may help to direct the management practices. It is also reported that change in weather parameters had great influence on the population of pest [6]. The study on correlation of these factors with population of pest can provide some basis to conduct management practices.…”

Section: Population Dynamics Of Diamondback Moth (Plutella Xylostella L) Infesting Cabbagementioning

confidence: 99%

“…It is also recommended that the close watch on influence of this changing climatic condition on insects is necessary. This study is necessary to for planning and directing the future management strategies [6]. Considering the importance of diversity of insects and influence environmental factors on population build-up of insect pest present investigation was carried out in organically cultivated cabbage.…”

Section: Introductionmentioning

confidence: 99%

Diversity of Arthropods and Population Dynamics of Diamondback Moth Visiting Organically Cultivated Cabbage

Pathak

Dhote

Dere³

2021

CJAST

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The biodiversity of insects visiting cabbage and population dynamics of diamondback moth was studies on Golden acre variety of cabbage. The experiment was conducted at experimental plot of Ramakrishna Mission Vivekananda Educational and Research Institute, Morabadi, Ranchi, during October to January, 2018-19. During the experiment, Bihar hairy caterpillar, Diamondback moth, Cabbage aphid, Cabbage maggot, Cabbage butterfly, Tobacco caterpillar, Ladybird beetle, Rice bug, Cricket and Spider were noticed. The population of diamondback moth was positively correlated with maximum, minimum, average temperature and maximum relative humidity and negatively correlated with minimum RH, wind speed; rainfall. The highest larval population of was recorded during 1st week of January (1st Standard Meteorological Week, SMW).

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“…In terrestrial ecosystems, studies have increasingly found evidence of virus infection in a broad range of wild plants [2,30]. Global climate change is one of the main reasons for the increased economic impact of aphids in temperate regions, which can adapt to new environmental conditions rather quickly [61,62]. The global temperature over the past century has been increasing by approximately 0.8 °C and is expected to rise between 0.9 and 3.5 °C by 2100.…”

Section: Effect Of Host Population Climate Changes and Land Use On Virus Emergence And Biodiversitymentioning

confidence: 99%

Metagenomic Studies of Viruses in Weeds and Wild Plants: A Powerful Approach to Characterise Variable Virus Communities

Hasiów‐Jaroszewska

Boezen

Zwart

2021

Viruses

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High throughput sequencing (HTS) has revolutionised virus detection and discovery, allowing for the untargeted characterisation of whole viromes. Viral metagenomics studies have demonstrated the ubiquity of virus infection—often in the absence of disease symptoms—and tend to discover many novel viruses, highlighting the small fraction of virus biodiversity described to date. The majority of the studies using high-throughput sequencing to characterise plant viromes have focused on economically important crops, and only a small number of studies have considered weeds and wild plants. Characterising the viromes of wild plants is highly relevant, as these plants can affect disease dynamics in crops, often by acting as viral reservoirs. Moreover, the viruses in unmanaged systems may also have important effects on wild plant populations and communities. Here, we review metagenomic studies on weeds and wild plants to show the benefits and limitations of this approach and identify knowledge gaps. We consider key genomics developments that are likely to benefit the field in the near future. Although only a small number of HTS studies have been performed on weeds and wild plants, these studies have already discovered many novel viruses, demonstrated unexpected trends in virus distributions, and highlighted the potential of metagenomics as an approach.

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The Impact of Climate Change on Agricultural Insect Pests

Cited by 400 publications

References 185 publications

Uncertainties In The Effectiveness of Biological Control of Stem Borers Under Different Climate Change Scenarios In Eastern Africa

Uncertainties In The Effectiveness of Biological Control of Stem Borers Under Different Climate Change Scenarios In Eastern Africa

Diversity of Arthropods and Population Dynamics of Diamondback Moth Visiting Organically Cultivated Cabbage

Metagenomic Studies of Viruses in Weeds and Wild Plants: A Powerful Approach to Characterise Variable Virus Communities

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