The Upside Of The Bitter Cold: It Kills Bugs That Kill Trees
While many of us may prefer to never again see temperatures drop below zero like they did earlier this week across the country, the deep freeze is putting warm smiles on the faces of many entomologists.
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#1 Jan 11, 2014
“Geologist [I'm Climate Change]”
Since: Mar 07
#2 Jan 13, 2014
Nice to see a cold snap caused by a polar vortex. This has been apparently linked to an El Nino in NOAA circles but nowt on TV to confirm so far.
Will not only cause a winter kill in non native pests but for the N.Americas, also a severe winter kill for native spruce, fir & pine bark beetles causing tree death in warm winters. Sad news is that the polar vortex does not appear to have hit the W. rockies & rainforest coastlines so spectacular tree browning may continue over there, but the E. conifers will fare better.
In the UK on the opposite side of the pond, we have been getting mild wet & windy weather (frosts have been very rare since the UK utilities companies attempted a 3rd year of price gouging). The floods are rather more a result of infrastructure built on floodplains during drought years rather than record breaking rainfall totals. A lot of the runoff is now flash input from paved areas that were formerly open soil with plants of varying sizes rooted in it.
The wet & windy weather did coincide on 2 occasions with high spring tides with record tide height in one case(Norfolk & E.Anglia), & a record breaking (Aberystwyth) beachfront breaking wave overwash berm event (that would have moved the berm 20m inland had the seawall not been there). In that event the berm covered the prom & a fair amount of the overwash berm was originally smaller parts of the seawall (blocks to 60 cm).
No sign of ash borer over here but now reporting Chalara which produces a rather similar dieback. May be seeing American ash replacing the boring UK version if it has more Chalara resistance.
have a nice day: Ag
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