Michael McCarthy in his book Moth Snowstorm remembers evening drives when moths filled the headlights like snowflakes in a blizzard. Memories of summer always include sounds of insect life, children happily chasing butterflies and catching lightening bugs.
Insects have undergone a severe, largely unnoticed decline over at least three decades. Scientists have now documented the decline and studied its causes. A 2017 study in Germany, revealed a shocking 76% decline in insect biomass in nature preserves. Fewer insects are present, and their ranges are restricted. A review study published this month in Biological Conservation reports that 40% of insect species worldwide are threatened with extinction. Butterflies (Lepidoptera), wasps and bees (Hymenoptera), and dung beetles (Coleoptera) are most affected. The reasons for the decline include habitat loss to intensive agriculture and urbanization, pesticides, fungicides and fertilizers; invasive species; and climate change. A few common and generalist species are increasing in number, occupying vacant ecological niches, but they are unlikely to be adequate substitutes.
Three broad categories of insects – decomposers, carnivores, and herbivores – support life on earth. Decomposers feed on dead or rotten plants, animals, and excrement clearing waste, recycling nutrients, and building humus. Carnivores prey on or parasitize other animals. We rely on insect carnivores for integrated pest management. Herbivores include pollinators and leaf-eating insects. Pollinators are necessary for plant regeneration, including many foods we eat. Leaf-eating insects and the insects that prey on them are essential diets for a wide range of birds, mammals, reptiles, and amphibians. Indeed, our nesting birds feed leaf-eating insects to their young in spring when no seeds are available. In addition to documented decreases in animal life because of fewer insects, scientists anticipate further cascading effects on animal populations. A mass extinction of insects will result in a mass extinction of animals and affect human populations, too.
What can we do to stop the insect decline?
We can increase insect habitat by:
- Planting native species. While some generalist pollinators will visit non-native plants, leaf-eating insects and specialist pollinators rely often exclusively on plants they evolved with. Without those native plants, they starve. Plant many different species in a succession of bloom times from early spring to late fall. Think shrubs and trees, not just flowers. Find some of the best native plants by visiting Doug Tallamy’s website Bringing Nature Home or the Lady Bird Johnson Wildflower Center. Look for our insect display coming soon to the Norwich Post Office.
- Do not spray with herbicides, fungicides, or pesticides, especially neonicotinoids, which are highly toxic to bees. Use the Xerces Society website to print out the names of neonicotinoids so you can avoid them. Insist on plants and seeds that are neonicotinoid-free. Use horticultural oils if you have to spray.
- Leave bare ground. Many native solitary bees are ground-nesting and require bare soil. These are not yellow jackets. They do not sting.
- Reduce your lawn and increase edge habitat. Raise your lawn mower as high as possible, mow infrequently, and leave clippings on the lawn. Leave as much ‘natural’ edge as possible.
- Reduce deer overbrowse by using repellents such as Liquid Fence, fencing, or support measures to reduce local deer populations to sustainable levels.
Support agricultural practices that benefit insects. Buy organic as much as possible. Buy from farms that use regenerative and pollinator-friendly farming practices.
Remove invasive species and avoid planting non-natives as much as possible.
Adopt practices and support policies and procedures that reduce climate change and pollution. Although insects in New England are somewhat less susceptible to climate change than those in the tropics, they are under stress from many sources. Pollution from sewer plants and farming have serious effects on insects, especially aquatic insects.
Participate in citizen science projects involving insects. Vermont Center for Ecostudies is starting a bumblebee surveying project that should include our area by 2020. You can contribute to iNaturalist Vermont and eButterfly. Details are at the Vermont Center for Ecostudies website.




Have you hiked the Gile Mountain trail to the fire tower recently? If not, you will be surprised to see the upgrades taking place along the trail. On a recent beautiful, late summer August evening, my companion and I took the drive up Turnpike Road to the trailhead, to make the short 1.4 mile round trip to the fire tower and back.
The first section of the trail is the same as I remember from my last hike on it – a wide, dirt path with numerous tree roots to dodge. It wasn’t until I passed the clearing along the power lines that the changes came into focus. We passed a pile of hardpack gravel, and then encountered an impressive stack of flat stone for building steps. Terraced steps made from landscape timbers, recently filled with the hardpack, ushered us into the woods.
Hirschler said the materials moved to the trail include large, flat stone for steps, crib stone, used to build up the sides of the trail, coarse gravel, and hardpack, both used in creating part of the walkway.
Heading back down, the change of direction gave us a different perspective on the trail work, and the step construction. Curious about the cost of the work, Hirschler told me, “We are on our third grant for work on Gile Mountain.” Grant money received through the Vermont Recreation Trails Program has totaled about $60,000, and with matching funds and in-kind labor, the project is up to about $90,000, said Hirschler.
Just in time to savor sunlight filtering through the pine woods and hear the sounds of frogs and birds from a mossy bog and a rushing brook, Norwich will soon have a new trail for walking and observing nature. Thanks to the generosity of 105 members of the community, the Norwich Conservation Commission, and the Rieser children – Abby, Tim, Len and Ken Willis – a conservation easement and designated trail is being added to the 11-acre property that borders Blood Brook, Hopson Road, and nearby Pine Tree Road.
Trust (UVLT), and they further demonstrated their commitment to conservation by purchasing and maintaining the adjacent Sample’s Woods parcel beginning in 1965.
Another feature of this special spot is the naturally contoured ski jump, known to former Ford Sayre ski jumpers like Mike Holland, Walter Malmquist, and Buff McLaughry, as Sample’s Jump. Paul Sample, the local painter of familiar scenes around the valley, owned the land prior to the Rieser family and the jump bears his name. Visitors to the woods can view the jump takeoff and landing and imagine themselves flying through the air as many young boys did during the winters of the 50’s and 60’s.

Passing in or out of Norwich this fall one could see that the rolling meadow and apple orchard and the edges of the woods east of Main Street between the school property and I-91 were being pruned, raked, mowed, cut down so that when the job was completed, the entire area had been cleared and opened. A long metal fence, impacted with invasive growth, was dug out and removed. To some, it appeared as if the area had been permanently changed. We will, in fact, have to keep this area mowed until the invasive seeds and viable root systems that are still present have stopped resprouting. When this has happened, we will be able to replant native trees and shrubs.
The 36 acres of the Milton Frye Nature Area are a treasured resource for the town of Norwich. The Marion Cross School uses the area for environmental science projects of many kinds. Dog walkers, runners, and hikers frequent the three major paths that wind through the woods and the two stone ridges that divide the area. Spring bird walks are held each year. Mink, fox, deer, raccoon, porcupine, bobcat, bear, mice and vole tracks testify to the diversity of wild life that lives in or visits the area. A Barred Owl nests in one of the hollow trees and sometimes upsets a community of crows who roost in the tall pines. Hawks and vultures soar over the woods and field. Bluebirds, Tree Swallows, Indigo Buntings, Scarlet Tanagers, Goldfinches, and at least a dozen kinds of warblers visit the apple orchard and its environs.
