Impact of climate change on Ostrinia nubilalis (Lepidoptera: Crambidae) phenology and its implications on pest management

Abstract

1 Climate change can cause negative impacts to the agricultural sector by increasing pest damage to crops. The European corn borer (ECB) is a major insect pest of corn in North America. Its speed of development could potentially accelerate under a warmer climate, leading to an earlier development of the first generation and an increase in the number of generations per year. 2 The main objective of this study was to assess the potential impacts of climate change on ECB management for the future period 2041-2070 in Quebec, Canada, using bioclimatic modelling and climate analogues. 3 First flight of ECB moths could occur about 15 days earlier in the season in 2041-2070 compared to the reference period 1970-1999. 4 The window for insecticide interventions may be reduced under climate change by 15.6% to 27.8% for univoltine ECB and by 13.8% to 52.7% for bivoltine ECB. 5 Climate change could promote the development of an additional generation in the southern region for both races, considering temperature increases and factors inducing the overwintering diapause. 6 ECB management could become more costly both economically and environmentally under the future climate, and it should be revised according to the results of this study.

Global warming and increasing maize cultivation demand comprehensive efforts in disease and insect resistance breeding in north‐western Europe

“…The European corn borer (ECB) is an excellent example of a northward migrating insect pest. ECB is prevalent in many parts of the world (Gagnon et al, 2019), including Europe. In south-western Germany, ECB was detected in maize in the 1930s.…”

Phenological synchrony between summer maize and the Asiancorn borer

“…玉米螟幼虫可以取食全生育期的玉米 植株, 初孵幼虫主要取食玉米的心叶、雄穗、花丝, 而高龄幼虫则可钻入茎或穗轴中取食危害玉米 [15] . 目 前, 昆虫受增温的影响新陈代谢速度更快, 从而导致 其发育期缩短 [16,17] 、世代数增加 [18] , 并因此改变了昆 虫所处寄主植物生长阶段和食物的质量 [19] . 玉米和玉 米螟间存在紧密的联系, 玉米物候可以影响玉米螟的 生长发育和繁殖行为, 比如, 当玉米螟幼虫食用玉米 生长发育过程中的不同组织器官时, 幼虫的发育速率 和存活率都有差异 [20] , 而成虫则会倾向于选择特定物 候期的玉米产卵 [21] .…”

Characterizing and avoiding physical inconsistency generated by the application of univariate quantile mapping on daily minimum and maximum temperatures over Hudson Bay

“…The SPP technique used here is univariate QM. This technique is commonly used in climate services under different variants and names (e.g., Piani et al, 2010;Haerter et al, 2011;Gudmundsson et al, 2012;Räty et al, 2014;Lehtonen et al, 2016;Gagnon et al, 2019). The central idea of QM is to build one, or a set of, transfer function(s) F QM describing the quantile-specific mismatch between simulated and reference distributions during the calibration period, and then to apply F QM to the whole simulation (application period).…”