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Climate Change Effects on Insects: Implications for Crop Protection and Food Security

OAR@ICRISAT

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Relation http://oar.icrisat.org/7414/
 
Title Climate Change Effects on Insects: Implications for Crop Protection and Food Security
 
Creator Sharma, H C
 
Subject Food and Nutrition
Entomology
Climate change
 
Description Global warming and climate change will trigger major changes in diversity and abundance
of arthropods, geographical distribution of insect pests, insect population dynamics, insect biotypes,
herbivore–plant interactions, activity and abundance of natural enemies, species extinction,
and efficacy of crop protection technologies. Changes in geographical range and insect
abundance will increase the extent of crop losses and, thus, will have a major bearing on crop
production and food security. Distribution of insect pests will also be influenced by the changes
in cropping patterns triggered by climate change. Major insect pests, such as cereal stem borers
(Chilo, Sesamia, and Scirpophaga), pod borers (Helicoverpa, Maruca, and Spodoptera), aphids,
and whiteflies, may move to temperate regions, leading to greater damage in cereals, grain
legumes, vegetables, and fruit crops. Host plant resistance, biopesticides, natural enemies, and
synthetic chemicals are some of the potential options for integrated pest management. However,
the relative efficacy of many of these pest control measures is likely to change as a result of
global warming. Climate change will also result in increased problems with insect-transmitted
diseases. These changes will have major implications for crop protection and food security,
particularly in developing countries where the need to increase and sustain food production
is most urgent. Long-term monitoring of population levels and insect behavior, particularly in
identifiably sensitive regions, may provide some of the first indications of a biological response
to climate change.
 
Publisher CRC Press
 
Date 2013
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/7414/1/ClimateChangeEffectS_chap12_2013.pdf
Sharma, H C (2013) Climate Change Effects on Insects: Implications for Crop Protection and Food Security. In: Combating Climate Change: An Agricultural Perspective. CRC Press, pp. 213-236.