01/22/1998 - Laserfiche WebLink

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C ity of Mounds View Forestry Summary 1997 0 verview A deep freeze in early April resulted in severe damage on many of the City's trees. Temperatures during this period descended as low as 10°F with wind chills well below zero. The response of many tree species was bud loss, twig die -back and lost of seed crop. Recovery was quite slow for most of the affected varieties; the effects lingered on into the growing season. Some of these trees were so stressed that, as in the case of oaks, a secondary and more serious problem would surface. Here, an insect called two -lined chestnut borer and a root fungus (Armillarea) most likely accounted for as many deaths as oak wilt. Full recovery from a severe freeze event can sometimes take more than one year. The growing season itself, once in a pattern, proceeded without incident. No major storms, rainfalls or prolonged periods of dryness occurred. The usual smattering of anthracnose fungus again caused green ash trees and bur oaks to drop leaves and leaflets. These concerns, as well as, other disease and insects problems, resulted in about 250 calls from residents during the year. There was also public interest in tree preservation and tree planting. Oak wilt disease losses doubled in Mounds View in 1997. Three (3) new infection centers were identified and contained with the use of a vibratory plow. State DNR grant money made this possible as well as a half payment on all public and private diseased oak removals. orestry Highlights 1997 Students from Pinewood School (5 classes) participated in tree planting activities at Greenfield Park and on school grounds during Arbor month. The Tree City USA award was presented by the Minnesota DNR to Mounds View for the 15th consecutive year. Christmas tree recycling resulted in 2,200 Mounds View trees (34 tons) being chipped. Additional tree and shrub planting was added as screening material to Ardan Park using Ramsey County recycling funds. Continued...