And then there is this:
Gypsy moth could pose problem in 2009
Riverside could see defoliation on south side, near river
By BOB UPHUES
Editor
Riverside's forester has warned that unless the village acts to control the gypsy moth population next spring, defoliation of the village's tree stock in areas where the pest has shown up in great numbers could occur in summer 2009.
Forester Michael Collins said recently that gypsy moths infest trees across the village, particularly in the south and areas along the Des Plaines River. Traps set this year have captured high numbers of gypsy moths, Collins said, numbers well beyond what the Illinois Department of Agriculture has set for infestation.
"If you get 10 [moths] per trap the area's considered infested," Collins said. The highest count I got was 40 on the south side of town and the lowest was 20 [on the north side]."
There's been no significant defoliation this year, but Collins said he assumed there would be next year, since adults are now laying eggs that will hatch next spring.
According to the Illinois Department of Agriculture Web site the gypsy moth was imported to the United States in the 19th century for silkworm breeding. The moths ended up infesting forests on the East Coast and have been steadily moving west.
Male gypsy moths are brown with black markings with a wingspan of about 1.5 inches. Female moths, about 2 inches, are white or cream-colored but cannot fly.
Collins said that the moths prefer oak trees but will move along to other species as well. The caterpillars feed on green foliage and in large numbers can, according to information found on the University of Illinois Extension Web site, "completely defoliate host trees over a wide geographic area."
The last time Riverside did gypsy moth trapping on any large scale was in 2005, when the highest trap count in Riverside was 12, Collins said. Other infestations were found in the forest preserves on either side of First Avenue from 31st Street to Ogden Avenue.
Those numbers prompted the Illinois Department of Agriculture in May 2006 to conduct spraying mainly along the river in an effort to slow the gypsy moth population's growth.
After a temporary slow down, however, the moth population in Riverside is bigger than ever. And with the Department of Agriculture focusing on population control farther west and southwest, communities like Riverside are left to deal with the infestations by themselves, Collins said.
"The population is always going to build back up," Collins said.
If Riverside wants to do its own spraying (which is done via helicopter), it could cost as much as $70,000, according to Collins.
But, he added, "there's no funding for this. It's something the board would have to allocate."
The board has promised to allocate more money toward maintaining its tree stock in areas along the river if a tax referendum question succeeds at the polls this fall.
Village Manager Kathleen Rush said that if the referendum is successful, money earmarked for maintenance of wilderness areas would likely be allocated for gypsy moth spraying if the board deems it a high-priority item.
Meanwhile, Riverside's trees are faced with other potential threats, including the emerald ash borer, which has made appearances in the north, west and south suburbs. Last week signs of an ash borer were found on a tree in Oak Park. According to Collins, it's simply a matter of time before that pest appears in Riverside, though it has stayed away so far.
"We might as well have a big bull's eye on our heads," Collins said.
Collins also said the cool, wet spring has helped Dutch elm disease spread in 2008. After losing only some 30 trees to Dutch elm in all of 2007, Riverside has already lost around 55 in 2008 and is on pace for another year like 2005, when Riverside lost 87 elms.
Collins urged residents to help renew the tree stock by participating in the village's cooperative tree planting program, where residents and the village share the cost of planting trees in the public parkway.
"Trees are a renewable resource," Collins said. "Although invasive insects pose a threat, if we get out and plant some trees, we'll have those for future generations to enjoy."
Three weeks ago the gypsy moths were so thick in the FP at 47th and Harlem they were getting inside my shirt when I tried to eat lunch there. This makes what I wrote about above even more important. We are surrounded by Forest preserves that will harbor all these critters, We need to stop dividing our tree stock into "public" trees on the parkways, which are the only ones covered by the Cooperative Tree Planting Program, and look at all the trees of Riverside as a total village asset. Come on lawyers, help me structure a program that can attract tax-deductible contributions from all kinds of sources - public, private, corporate. We need to act now - no one else is.