Factors affecting development and overwintering of second generation Colorado Potato Beetle (Coleoptera: Chrysomelidae) in Estonia in 2010

Hiiesaar, K.; Jõgar, Katrin; Williams, I. H.; Kruus, Eha; Metspalu, L.; Luik, Anne; Ploomi, Angela; Eremeev, Viacheslav; Karise, Reet; Mänd, Marika

doi:10.1080/09064710.2013.811536

Cited by 7 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Colorado potato beetle eggs tolerated well short exposure to sub-zero temperatures as low as −3°C … −6°C or longer exposure at −3°C for 72 h. Longterm weather data indicate that, in some years during recent decades, temperatures in Estonia fell to −6°C in May and to −2.5°C in June (Tarand et al, 2013). This coincides with the time when the Colorado potato beetle adults emerge from the soil and start to oviposit (Hiiesaar et al, 2013). Embryogenesis begins when temperatures rise to 10 … 12.5°C (Tauber et al, 1988).…”

Section: Discussionmentioning

confidence: 68%

See 1 more Smart Citation

Cold tolerance of Colorado potato beetle (Leptinotarsa decemlineata Say) adults and eggs

Hiiesaar

Karise²,

Williams³

et al. 2014

Zemdirbyste-Agriculture

Self Cite

View full text Add to dashboard Cite

The cold tolerance of different seasonal groups (pre-diapause, diapauses and post-diapause) of Colorado potato beetle (Leptinotarsa decemlineata Say) was assessed by exposing them either to a constant temperature of -3°C for 48 to 624 h, or to -3, −4, −5, −6 or −7 °C for a constant 24 h. Cold survival was affected by the length of exposure, by the temperature rates and by seasonality. The least cold-tolerant were pre-diapause beetles in August with a mean lethal temperature (Ltemp50) of −4.4°C for 24 h exposure and with a lethal time (Ltime50) of 106.8 h at −3°C. Cold tolerance was significantly higher in the diapause group in January and in the post-diapause group in March; it did not differ significantly between these groups of beetle for 24 h exposure, the lethal temperature being −5.8°C for both groups. Seasonality had a greater influence on survival of these groups after longer exposure to constant mild sub-zero temperature (−3°C); in diapause group, all the beetles survived 624 h exposure, but in post-diapause group the survival limit decreased to 216 h and lethal time was 153.9 h. Colorado potato beetle eggs tolerated 24 h exposure to sub-zero temperatures from −3°C to −5°C or longer exposure at −3°C for 72 h without a reduction in hatchability. The mean lethal time for 50% mortality of eggs was 76.5 h and mean lethal temperature was −5.8°C. Thus, we conclude that night frosts common in northern regions do not damage Colorado potato beetle adults or eggs to the extent that might threaten the survival of the population.

show abstract

Section: Discussionmentioning

confidence: 68%

“…We registered the temperatures in overwintering places of beetles in 2010-2011; the lowest temperature was −0.4°C on the soil surface and −0.2°C at a depth of 15 cm (Hiiesaar et al, 2013). This is notably higher than the diapausing or post-diapausing beetles (Hiiesaar et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Cold tolerance of Colorado potato beetle (Leptinotarsa decemlineata Say) adults and eggs

Hiiesaar

Karise²,

Williams³

et al. 2014

Zemdirbyste-Agriculture

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, whereas almost 50% of beetles survived winter in 2013, only 18% did so in 2010. In the dry summer of 2010, late blight did not spread and due to the abundant food supply the summer beetles continued to reproduce until mid-September; however, many of the resulting larvae and beetles did not complete their development before harvest (Hiiesaar et al 2013). After emerging from the soil many young beetles starved and some of these 'unprepared' beetles were picked up for overwintering in our trial.…”

Section: Discussionmentioning

confidence: 87%

“…In Estonia, the first beetles were found in 1965, and, in 2002, this pest was deleted from the list of quarantine insects, as by this time a permanent local population able to survive overwinter had developed (Hiiesaar et al 2013). The winter is the most critical time in the life of the CPB; burrowing in the soil enables it to escape severe cold and contributes to its success as a persistent pest in temperate regions (Boiteau & Coleman 1996).…”

Section: Introductionmentioning

confidence: 99%

“…In the last decade, warm summers with over 700 DD enabled development of a second generation in Estonia. The abundance of second-generation beetles caused severe destruction of potato leaves in unprotected fields in 2010 (Hiiesaar et al 2013). However the overwintering success of these beetles may be at risk, as many of them may not have completed their development in favourable conditions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phenology and overwintering of the Colorado potato beetleLeptinotarsa decemlineataSay in 2008–2015 in Estonia

Hiiesaar

Jõgar

Williams

et al. 2016

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

Self Cite

View full text Add to dashboard Cite

Before its establishment in Estonia at the beginning of the twenty-first century, the Colorado potato beetle Leptinotarsa decemlineata Say was a notifiable quarantine pest for many years. In high-latitude environments it encounters strong evolutionary pressure to adapt to low temperatures due to high overwintering mortality and periodic influx of new individuals from more southern populations. Our study focused on gathering evidence for such a range shift leading to the formation of a permanent local population. The phenology and overwintering success of beetles was investigated from 2008 to 2015. Depending on weather conditions in the different years, the overwintered beetles emerged from the soil from the beginning of May to mid-June. Over 700 degree days accumulated in 2010, 2011, 2013 and 2014 exceeding the limit needed for development of two generations. However, food supply and temperature distribution in the growing period enabled development of the second complete generation only in 2010 and 2013. Survival of overwintering beetles in field conditions varied between 18% and 47% in the different years. Winter mortality was not associated with low air temperature in any year as snow cover provided the necessary protection and winter soil temperatures at the depth of 30 cm remained at around 0°C for the duration of the whole observation period, with only some records as low as −3.5°C. The survival of overwintering beetles is more likely defined by factors other than low temperature. As a result of periodic invasions of beetles with naturally lower cold resistance originating from southern regions, the structure of the overwintering population in Nordic temperate conditions is not homogeneous. Moreover, this may also be derived from cultural practices, as commercial producers regularly apply agrochemicals while organic growers avoid them. ARTICLE HISTORY

show abstract

Population structure and pattern of geographic differentiation ofColorado potato beetle,Leptinotarsa decemlineata(Coleoptera:Chrysomelidae) inTurkey

Koca

Berkcan

Alas

et al. 2021

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND: The Colorado potato beetle (CPB) is the most harmful pest of potato in potato cultivation regions globally. Although it is an economically important agricultural pest, the population structure and colonization route of this species in Turkey are uncertain. We used microsatellite and mitochondrial DNA (mtDNA) markers to obtain information about the population source, structure and bio-invasion route of CPB populations in Turkey. RESULTS:The common single mtDNA haplotype in European CPB populations was obtained in all Turkish CPB populations based on mtDNA data analysis. However, microsatellites revealed a low level of genetic variation in CPB populations. The results of microsatellite analysis [factorial correspondence analysis (FCA), Bayesian analysis of genetic population structure (BAPS), unweighted pair group method with arithmetic mean (UPGMA) dendrogram, F-statistics and Nei's distances] indicated three groups for invasive CPB: Thrace-Marmara and Aegean; Black Sea, Central Anatolia and Mediterranean; Northeastern Anatolia. Region-specific alleles have been identified in regions, where commercial potato cultivation and insecticide use are intensive.CONCLUSION: The detection of a single fixed European haplotype in all Turkish populations has proved that CPB in Turkey originated from Europe as a result of a founder event occurred in European populations. Low genetic variation was due to the short time period since the spread of CPB from America to Europe. The highest number of private alleles were found in the top commercial potato cultivation region-Central Anatolia from where the CPB populations spread to other parts of Turkey.

show abstract

Factors affecting development and overwintering of second generation Colorado Potato Beetle (Coleoptera: Chrysomelidae) in Estonia in 2010

Cited by 7 publications

References 19 publications

Cold tolerance of Colorado potato beetle (Leptinotarsa decemlineata Say) adults and eggs

Cold tolerance of Colorado potato beetle (Leptinotarsa decemlineata Say) adults and eggs

Phenology and overwintering of the Colorado potato beetleLeptinotarsa decemlineataSay in 2008–2015 in Estonia

Population structure and pattern of geographic differentiation ofColorado potato beetle,Leptinotarsa decemlineata(Coleoptera:Chrysomelidae) inTurkey

Contact Info

Product

Resources

About