Seasonal Population Dynamics of Potato Psyllid (Hemiptera: Triozidae) in the Columbia River Basin

Environmental Entomology
Abigail L CohenDavid W Crowder

Abstract

Understanding factors that affect the population dynamics of insect pest species is key for developing integrated pest management strategies in agroecosystems. Most insect pest populations are strongly regulated by abiotic factors such as temperature and precipitation, and assessing relationships between abiotic conditions and pest dynamics can aid decision-making. However, many pests are also managed with insecticides, which can confound relationships between abiotic factors and pest dynamics. Here we used data from a regional monitoring network in the Pacific Northwest United States to explore effects of abiotic factors on populations of an intensively managed potato pest, the potato psyllid (Bactericera cockerelli Šulc), which can vector Candidatus Liberibacter psyllaurus, a bacterial pathogen of potatoes. We assessed effects of temperature on psyllid populations, and show psyllid population growth followed predictable patterns within each year, but there was considerable variation across years in psyllid abundance. Examination of seasonal weather patterns suggested that in 2017, when psyllid populations were less abundant by several orders of magnitude than other years, a particularly long and cold period of winter weather ...Continue Reading

References

Dec 4, 2003·Annual Review of Entomology·Teja Tscharntke, Roland Brandl
May 7, 2009·Natural Product Research·Padma KumarNidhi Bakshi
Feb 4, 2010·Pest Management Science·Vincent P JonesWendy E Jones
Jun 7, 2011·Journal of Insect Physiology·Steven L ChownJohn S Terblanche
Apr 12, 2013·Environmental Entomology·Kylie D SwisherJames M Crosslin
Nov 5, 2014·Journal of Insect Science·Kylie D SwisherJames M Crosslin
Nov 22, 2014·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Bernhard Ronacher, Heiner Römer
Mar 1, 2009·Plant Disease·Lia W LieftingGerard R G Clover

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