Iowa’s Forest Health Update Tivon Feeley Iowa Department of Natural Resources Forest Health Program Leader Tivon Feeley, Iowa Department of Natural Resources, Bureau of Forestry, 502 East 9th Street, Des Moines, IA 50319-0034. 515-281-4915 tivon.feeley@dnr.iowa.gov 11/24/2018 IDNR Bureau of Forestry

2010 Aerial Flight Survey Area in pink had severe hail in 2009. Tree mortality high. Many native white pine wiped out. Noted few oak wilt pockets. Salvage Cuts Aspen decline. Still not certain of cause. Nothing else suspicious.

IDNR Bureau of Forestry Henderson Islands Alerted from MN Island 135 Shared Border Henderson Islands Single Tree Quarantine in Effect Research has shown that EAB can only fly a few miles, which helps slow its natural spread. However, it is easily transported to new areas when people inadvertently move emerald ash borer larvae inside of infested firewood, ash nursery stock, and other ash items. Please do not move firewood from infested areas into non-infested areas. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Visual Survey 235 High Risk Campground 29 Active Sawmills 1,267 Trees Visually Surveyed 4 Trees suspect No trees had EAB During the 2006, 2007, 2008, and 2009 season, surveillance strategy shifted to the highest risk areas in the state, campgrounds. Sites were selected based on location near interstate highways, near tourism sites, and/or on the eastern border of Iowa. Up to 10 trees were examined in each campground for signs of EAB. The larger the campground and the greater the ash density, the more ash trees visually examined. In 2006, 417 ash trees were visually examined in 50 state and 10 county campgrounds. In 2007 EAB visual surveillance increased to 400 campgrounds (all federal, all state, all private and large campgrounds in 69 counties) involving 1102 trees. In 2008, 235 campgrounds in 55 counties were identified as high risk sites and 1,269 ash trees were inspected. In 2009, the same campgrounds were surveyed and 1,265 ash trees were inspected. No evidence of EAB was noted during visual surveillance in Iowa (2004 - 2008). A total of 235 campgrounds and all sawmills were surveyed during the 2009 detection year. The same 235 campgrounds and sawmills have been visually surveyed during 2010 and a total of 1,267 trees were inspected for signs and symptoms of EAB. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Purple Trap Survey 1,518 Traps Set Set in May on ash trees. 328 in high risk sites Serviced in July September Removal One Trap had 13 adult EAB beetles Trap was placed on infested island. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Sentinel Tree Survey Girdled Ash Trees 412 Sentinel Trees High risk areas. Setup fall 2009 Removed fall 2010 No EAB in Sentinel Trees 412 established for 2011 In 2005, 48 sentinel trees (23 standing, 25 containers) on 12 sites were also used to monitor for EAB. In 2006, 68 sentinel trees (27 standing, 41 containers) were established on 18 sites; 10 were retained for evaluation in 2007. In 2007, 237 sentinel trees (190 standing, 47 container) were established on 57 sites. In 2008, 401 sentinel trees (272 standing, 129 containers). In 2009, 423 sentinel trees were bark peeled looking for EAB. EAB was not been detected in any sentinel of the sentinel trees. An additional 412 sentinel trees were established for the 2010 season and will be bark peeled in the fall. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Gypsy Moth 2010 5,163 Traps Set 2,613 Set in STS Zone Total capture 2,260 male moths 626 male moths captured in 2008 and 82 in 2009 The Iowa Department of Natural Resources (DNR), Iowa Department Agriculture and Land Stewardship (IDALS), USDA Gypsy Moth Slow the Spread Foundation (STS), and with USDA Animal Plant Health Inspection Service Plant Protection and Quarantine (PPQ) have conducted annual male moth detection trapping programs since 1970 to determine the presence and extent of gypsy moth in Iowa. Since gypsy moth population in surrounding states began to increase; more intensive trapping efforts began Iowa in 2008 in cooperation with STS. In 2008, a total of 626 male moths were captured in Iowa. In 2009, a total of 82 male moths were captured. In 2010, a total of 2,260 male moths were captured, an alarming increase over the past years. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Gypsy Moth STS 2010 1,758 male moth captured Three traps with 10 or more male moths Traps with 10 or more moths are near natural spread line Computer algorithm helps project flight pattern, natural spread, and populations that establish in front of the natural spread line. 11/24/2018 IDNR Bureau of Forestry

IDNR Bureau of Forestry Gypsy Moth STS 2010 Data suggest establishment in Allamakee Data suggest natural spread in Jackson Plans to use pheromone flake to disrupt the mating DNR, IDALS, PPQ, STS and ISU Entomology met to discuss the gypsy moth populations in Iowa. STS, utilizing years of research on flight and population patterns, identified 4 potential problem areas. These potential problem areas could result in gypsy moth populations building to an outbreak level if not addressed. After careful review of all the options, the State of Iowa has begun working with STS to starting treating the PPA using mating disruption (pheromone flakes). 11/24/2018 IDNR Bureau of Forestry

Bur Oak Blight 2009

JAPANESE KNOTWEED AFTER 5ml RODEO INJECTION

Budget No out of state travel. Department layoffs expected. No ones knows at this time which Bureau(s) will be cut. Some legislations specific for forest health looks promising.

Questions?