[tag=WDT]? [lemma=answer | lemma=□]
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[tag=WDT]? [lemma=answer | lemma=answer]
Because you want your new shrubs to become established before the onset of hot weather , set out either bare-root or potted plants in spring as soon as the soil can be worked ; do not be afraid to plant early in the season , as even a plant that is beginning to leaf out can tolerate temperatures as cold as 19 F. At one time Southern blight was thought to be a disease problem only in warm climates . Lichen cover is virtually the only biological retardant for soil erosion and one that is easily destroyed . Dimethoate ( often sold as Cygon 2E ) was a commonly used product for iris borer management , however it was canceled in 2002 and is no longer available . The radar data ( backscatter magnitude only ) were not adequate for habitat mapping , which was accomplished with TM data . Later research failed to confirm the high rates , and suggested that the anomalies were most likely associated with water vapor variation in the troposphere . Backscatter from non-inundated sites was low , that from herbaceous inundated sites was high , and that from sites with the water table at the surface was intermediate , mirroring methane exchange rates for the region . The white or light gray powdery appearance over leaf and stem surfaces are caused by chains of fungal spores , which are rooted into the plant surface . They require acidic , well-drained soils , which are not common in most Minnesota landscape situations . For most volcanoes , even for ones that are fairly well monitored , we are a long way from answering these questions . Each of the postcaldera eruptions has produced magma that is chemically similar to that erupted during the caldera-forming event , which suggests that a large reservoir of silicic magma still exists in the upper crust beneath the caldera - - as well as the potential for another catastrophic caldera-forming eruption . Sclerotinia is a soil-inhabiting fungus that is nearly impossible to remove . Currants and gooseberries should be planted at least an inch deeper than they were in the nursery , in holes deeper and wider than their root systems . It 's amazing - - how after a long winter we can forget what we planted and exactly where it was planted . Any vertical branch competing with the central leader Dead , broken , or obviously fire blight-infected branches Suckers coming up from the roots or low on the trunk Watersprouts , which are vigorous vertical branches Downward-growing branches . Perhaps the most important example pertains to blind-thrust structures , which are difficult to recognize from surface observations , yet give rise to damaging urban earthquakes such as the 1971 San Fernando , 1985 Coalinga , 1987 Whittier Narrows , and 1994 Northridge events . This requires volcanologists to anticipate which volcanoes will become active in the near future , a task that is virtually impossible . The consensus of this group was that the ability of imaging radars to detect ecologically important characteristics of vegetated landscapes is well founded in both theory and observation . As part of the observa-tions , passes were planned to repeat the earlier April orbits at the beginning and end of the mission . Houseplants which are most often infected include pothos , African violet , begonia , pepperomia , dieffenbachia , and Chinese evergreen . Errors in the DEM contributed about 9 mm of noise to the coseismic offset estimates obtained by Massonet et al. ( 1993 ) , where rms vertical errors in the topographic data were estimated after the fact to be about + / -24 m. Systematic errors in selected areas can , of course , be much larger than this .