This is even more important as bee populations are decreasing.
Moths are important plant pollinators as they fly from plant to plant to feed on nectar. Ever notice birds, mostly swallows, concentrating at intersections? The birds are feeding on miller moths that shelter in automobiles and emerge while vehicles are idling at stoplights. Maybe not to humans, but they serve as a food source for birds, bats and bears. The fewer the native plants blooming, the more moths will congregate in urban landscapes to feed on such plants as lilac, cherries, spirea, euonymus, cotoneaster, horse chestnut, raspberry and Russian olive.Ĭolorado vegetable gardening: When, what, where to plant and how to water Do miller moths serve any useful purpose? He said a second factor regarding the number of moths you see around your house is the abundance or lack of abundance of native flowers and nectar on which the moths feed. "It doesn't look like it's going to get warm enough for them to fly for a week or more, so people will be seeing them around." "The ones here will hunker down and stay put until it gets warmer at night when they can fly easier," said Cranshaw, adding he hasn't heard of any significant cutworm population increases that would increase the moth population. There is no clear population outlook for this season but a "pulse'' of miller moths made its way to the Fort Collins area several days ago when temperatures were warmer, according to Whitney Cranshaw, retired Colorado State University entomologist. What is the population outlook for miller moths in Colorado in 2023? A likely explanation for the migration is the moths follow a reliable food source of blooming flowers, which provide nectar. Exactly when the migration starts and for how long it lasts varies by year, but it generally begins in early May and lasts into early June. 
They migrate in reverse (usually in the latter half of September) in much smaller numbers because many die in summer. Miller moths, the adult stage of the army cutworm, migrate from eastern Colorado and beyond to the Front Range and eventually the mountains in spring.When and why do miller moths arrive along the Front Range?
Here are answers to frequently asked miller moth questions, according to the Colorado State University Extension Service. Some years, allergies and moths are tolerable. Like allergies, miller moths are a spring nuisance to Colorado Front Range residents and cause varying degrees of annoyance, mostly depending on the weather. Likely, you've noticed in recent days a proliferation of miller moths fluttering around the kitchen, living room and, perhaps most annoyingly, your bedroom.
Watch Video: Miller moths in Colorado: Get to know them and how to get rid of them
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