Instant Insights: Climate change, insect pests and invasive species

2020 ◽  
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Pest Management ◽  
Insect Pests ◽  
Insect Pest ◽  
Management Strategies ◽  
Cereal Aphids ◽  
Plant Interactions ◽  
Impact Of Climate Change ◽  
The Impact

This specially curated collection features three reviews of current and key research on climate change, insect pests and invasive species. The first chapter reviews the impact of climate change on insect pests and how it has affected insect pest development and population dynamics, activity and abundance, diversity and geographical distribution. It also assesses insect-host plant interactions and the effectiveness of crop pest management techniques. The second chapter discusses the literature on the potential impact of climate change on the principal insect pests of wheat, including cereal aphids, Hessian fly, orange wheat blossom midge, cereal leaf beetle and cotton bollworm. It assesses the different methods used to assess likely impacts as well climate change effects on biological control in wheat systems. The final chapter surveys what we know about the ecology of invasive species and potential management strategies. In particular, it assesses how integrated pest management (IPM) needs to evolve to deal with invasive species, particularly in focussing more on monitoring, prevention and rapid response.

scholarly journals Nanopesticides: A Systematic Review of Their Prospects With Special Reference to Tea Pest Management

2021 ◽  
Vol 8 ◽  
Author(s):  
Bhabesh Deka ◽  
Azariah Babu ◽  
Chittaranjan Baruah ◽  
Manash Barthakur
Keyword(s):  
Pest Management ◽  
Insect Pests ◽  
Plant Protection ◽  
Insect Pest ◽  
Management Strategies ◽  
Crop Protection ◽  
Tea Plant ◽  
Research Field ◽  
Active Ingredients ◽  
The Impact

Background: Tea is a natural beverage made from the tender leaves of the tea plant (Camellia sinensis Kuntze). Being of a perennial and monoculture nature in terms of its cultivation system, it provides a stable micro-climate for various insect pests, which cause substantial loss of crop. With the escalating cost of insect pest management and increasing concern about the adverse effects of the pesticide residues in manufactured tea, there is an urgent need to explore other avenues for pest management strategies.Aim: Integrated pest management (IPM) in tea invites an multidisciplinary approach owing to the high pest diversity in the perennial tea plantation system. In this review, we have highlighted current developments of nanotechnology for crop protection and the prospects of nanoparticles (NPs) in plant protection, emphasizing the control of different major pests of tea plantations.Methods: A literature search was performed using the ScienceDirect, Web of Science, Pubmed, and Google Scholar search engines with the following terms: nanotechnology, nanopesticides, tea, and insect pest. An article search concentrated on developments after 1988.Results: We have described the impact of various pests in tea production and innovative approaches on the use of various biosynthesized and syntheric nanopesticides against specific insect pest targets. Simultaneously, we have provided support for NP-based technology and their different categories that are currently employed for the management of pests in different agro-ecosystems. Besides the broad categories of active ingredients (AI) of synthetic insecticides, pheromones and natural resource-based molecules have pesticidal activity and can also be used with NPs as a carriers as alternatives to traditional pest control agents. Finally, the merits and demerits of incorporating NP-based nanopesticides are also illustrated.Conclusions: Nanopesticides for plant protection is an emerging research field, and it offers new methods to design active ingredients amid nanoscale dimensions. Nanopesticide-based formulations have a potential and bright future for the development of more effective and safer pesticide/biopesticides.

scholarly journals Hydrogels: From Controlled Release to a New Bait Delivery for Insect Pest Management

2020 ◽  
Vol 113 (5) ◽  
pp. 2061-2068
Author(s):  
Jia-Wei Tay ◽  
Dong-Hwan Choe ◽  
Ashok Mulchandani ◽  
Michael K Rust
Keyword(s):  
Controlled Release ◽  
Pest Management ◽  
Insect Pests ◽  
Insect Pest ◽  
Management Strategies ◽  
Future Research ◽  
Insect Pest Management ◽  
Release Formulation ◽  
The Past ◽  
Minimal Environmental Impact

Abstract Here, we review the literature on the development and application of hydrogel compounds for insect pest management. Researchers have used hydrogel compounds for the past few decades to achieve the controlled release of various contact insecticides, but in recent years, hydrogel compounds have also been used to absorb and deliver targeted concentrations of toxicants within a liquid bait to manage insect pests. The highly absorbent hydrogel acts as a controlled-release formulation that keeps the liquid bait available and palatable to the target pests. This review discusses the use of various types of hydrogel compounds in pest management based on different environmental settings (e.g., agricultural, urban, and natural areas), pest systems (e.g., different taxa), and modes of insecticide delivery (e.g., spray vs bait). Due to their unique physicochemical properties, hydrogel compounds have great potential to be developed into new and efficacious pest management strategies with minimal environmental impact. We will also discuss the future research and development of hydrogels in this review.

scholarly journals Impact of climate change on the potato crop and biodiversity in its center of origin

2018 ◽  
Vol 3 (1) ◽  
pp. 273-283 ◽  
Author(s):  
Roberto Quiroz ◽  
David A. Ramírez ◽  
Jürgen Kroschel ◽  
Jorge Andrade-Piedra ◽  
Carolina Barreda ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Current Knowledge ◽  
Potato Crop ◽  
Insect Pest ◽  
Tuber Initiation ◽  
Crop Modeling ◽  
Andean Region ◽  
Impact Of Climate Change ◽  
The Impact

Abstract The Andean region is the most important center of potato diversity in the world. The global warming trend which has taken place since the 1950s, that is 2-3 times the reported global warming and the continuous presence of extreme events makes this region a live laboratory to study the impact of climate change. In this review, we first present the current knowledge on climate change in the Andes, as compared to changes in other mountain areas, and the globe in general. Then, the review describes the ecophysiological strategies to cope and adapt to changes in atmospheric CO2 levels, temperature and soil water availability. As climate change also has a significant effect on the magnitude and frequency of the incidence of pests and diseases, the current knowledge of the dynamics of vectors in the Andean region is discussed. The use of modeling techniques to describe changes in the range expansion and number of insect pest generations per year as affected by increases in temperature is also presented. Finally, the review deals with the use of crop modeling to analyze the likely impact of projected climate scenarios on potato yield and tuber initiation.

scholarly journals Farmer Knowledge of Climate Change Impacts and Adaptation Strategies in the Management of Vegetable Insect Pests in Zimbabwe

2017 ◽  
Vol 9 (12) ◽  
pp. 194
Author(s):  
Rumbidzai Debra Katsaruware-Chapoto ◽  
Paramu L. Mafongoya ◽  
Augustine Gubba
Keyword(s):  
Climate Change ◽  
Elevated Temperatures ◽  
Insect Pests ◽  
Insect Pest ◽  
Management Strategies ◽  
Climate Change Impacts ◽  
Effective Control ◽  
Vegetable Production ◽  
Farmer Knowledge ◽  
Climate Change Risk

Farmer knowledge of insect pests’ risks in a changing climate is important in managing insect pests’ incidence. A total of 250 vegetable farmers from 5 wards in Zimbabwe were sampled using a semi-structured questionnaire to assess their knowledge on climate change risk, its impact on vegetable insects pests and management strategies to reduce the increased incidence of insect pests. Focus group discussions, key informant interviews and field observations were also used. Droughts and elevated temperatures were perceived to have the greatest impact on vegetable insect pests resulting in their increased incidence. Aphids, cutworms and whiteflies were identified among the major pests that have increased. The majority (53%) of the farmers cited high vegetable losses from insect pests attack. All the respondents (100%) revealed the use of chemical insecticides during production of vegetables. A higher proportion (60%) perceived effective control, 34% perceived reduced efficacy and 6% were not sure of effectiveness of chemical insecticides. Management strategies to cope with the increasing insect pests and diseases on vegetable production also included planting insect resistant cultivars, certified seeds, increased frequency of application of synthetic insecticides, insecticide mixtures, use of more hazardous chemical insecticides and increasing the rates of application resulting in insecticide overuse. There is need for government to facilitate development and adoption of Integrated Insect Pest Management (IIPM) and raise awareness on avoiding overdependence on chemical insecticides. Modelling tools that support adaptation planning needs to be developed to forecast climate change risk and the resultant incidence of insect pests.

Management of beneficial invertebrates and their potential role in integrated pest management for Australian grain systems

2008 ◽  
Vol 48 (12) ◽  
pp. 1531 ◽  
Author(s):  
Joanne C. Holloway ◽  
Michael J. Furlong ◽  
Philip I. Bowden
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Natural Enemies ◽  
Insect Pests ◽  
Cropping Systems ◽  
Insect Pest ◽  
Environmental Benefits ◽  
Pest Species ◽  
Grain Crops ◽  
The Impact

Beneficial invertebrates (predators and parasitoids) can make significant contributions to the suppression of insect pest populations in many cropping systems. In Australia, natural enemies are incorporated into integrated pest management programs in cotton and horticultural agroecosystems. They are also often key components of effective programs for the management of insect pests of grain crops in other parts of the world. However, few studies have examined the contribution of endemic natural enemies to insect pest suppression in the diverse grain agroecosystems of Australia. The potential of these organisms is assessed by reviewing the role that natural enemies play in the suppression of the major pests of Australian grain crops when they occur in overseas grain systems or other local agroecosystems. The principal methods by which the efficacy of biological control agents may be enhanced are examined and possible methods to determine the impact of natural enemies on key insect pest species are described. The financial and environmental benefits of practices that encourage the establishment and improve the efficacy of natural enemies are considered and the constraints to adoption of these practices by the Australian grains industry are discussed.

Assessing the impact of climate change on Southeast Asia’s hydropower availability

2021 ◽  
Author(s):  
Thanh Duc Dang ◽  
Jia Yi Ng ◽  
Stefano Galelli
Keyword(s):  
Climate Change ◽  
Southeast Asia ◽  
Climatic Variability ◽  
Management Strategies ◽  
Coupled Model ◽  
River Basins ◽  
Infiltration Capacity ◽  
Impact Of Climate Change ◽  
Global Circulation Models ◽  
The Impact

<p>Southeast Asia’s electricity supply largely depends on the hydropower resources of the Mekong, Chao Phraya, Irrawaddy, and Salween River Basins. Uncertain precipitation patterns, rising temperature, and other climate-driven changes are exposing these resources to unprecedented risks, prompting decision makers to re-evaluate existing reservoir management strategies through climate change risk assessments. These assessments are important in shaping the operators’ response to hydro-climatic variability and are necessary to ensure energy security in the region. In this study, we developed high-resolution, semi-distributed hydrological models to examine the potential changes of hydropower availability under projected future climate scenarios in the four largest river basins in South East Asia. Specifically, we relied on a novel variant of the Variable Infiltration Capacity (VIC) model that integrates reservoir operations into the routing scheme, warranting a more accurate representation of cascade reservoir systems. Climate change impacts were derived from the outputs of five Global Circulation Models (GCMs) forced by two Shared Socioeconomic Pathways (SSPs 2.6 and 8.5) emission scenarios in the Coupled Model Intercomparison Project Phase 6 (CMIP6). We find that hydropower generation would be altered significantly in all scenarios in terms of temporal variability and magnitude due to the changes in duration and magnitude of the summer monsoon. Our findings further stress the importance of exploring how the impact of climate change on hydropower availability propagates through water-energy systems and call for adaptive reservoir operation strategies.</p>

Sign in / Sign up

Export Citation Format

Share Document