The combination of plentiful rain and warmer weather mark the beginning of mosquito season. To get a head start on mosquito control around your home, farm and business, eliminate potential breeding sites that provide the quiet, non-flowing water these bothersome pests need to develop.
You can decrease mosquito populations by depriving them of places to breed. However, eliminating these sites often is easier said than done, because these locations aren’t always obvious. A neglected bird bath, clogged rain gutter or boat bottom allowed to accumulate water can produce hundreds of new mosquitoes daily. Did you know that immature mosquitoes, also known as “wigglers,” can develop into biting adults in as little as one week?
Following the steps below will keep your property from becoming a prime mosquito breeding ground:
Since used tires are a primary mosquito breeding area, remove all discarded tires.
Also, dispose of outdoor, water-holding containers such as empty tin cans, plastic containers, ceramic pots, plastic sheeting and the like. Don’t let water accumulate in flower pot drainage saucers and pet dishes more than two days.
Turn over wading pools and wheelbarrows when not using them.
Change water in birdbaths and wading pools at least once a week.
Check around faucets, air conditioner units and condensation drains, cisterns, cesspools and septic tanks for water puddles that remain for several days. Eliminate these puddles and repair any leaks to prevent future water accumulations.
Consider stocking ornamental pools with mosquito fish. You can buy these predacious minnows, or seine them from creeks or streams.
Many small fish will feed on mosquito larvae in ditches, ponds and similar locations. To enable fish to get to immature mosquitoes, control emerging vegetation and keep banks steep rather than having a gradual drop off.
Standing water in roof gutters can produce millions of mosquitoes each season; so clean clogged gutters in the spring and fall, and periodically inspect gutters to be sure they properly drain.
Remove standing water from patios, decks or flat roofs.
Clean and disinfect swimming pools, outdoor saunas and hot tubs.
Landscape gardens and lawns to prevent water accumulation. Irrigate them sufficiently for good growth, but not to the point that water stands for several days. If you have installed a rain garden, make sure that the water drains out in two days.
To prevent water accumulation in tree holes or stumps remove, or drain them.
Tremendous numbers of mosquitoes can breed in shallow, marshy or swampy locations, ditches, and other low areas. On farms, these pests can develop in standing water in hoof prints around watering troughs, seepage areas and similar locations. Draining or filling up these areas is an effective long-term solution. If it’s not possible to eliminate standing water in all these situations, consider using a mosquito-specific larvicide (insecticide to control immature mosquitoes).
Larvicides contain the active ingredient Methoprene (an insect growth regulator) or the bacterial toxin produced by Bacillus thuringiensis israeliensis. These products are essentially harmless to fish, wildlife and other non-target organisms. The easy-to-apply products come in water-soluble granules, pellets or briquettes, and usually are available from farm supply stores, and pesticide dealers, or the Internet.
Gimmicks advertised in print and electronic media generally are ineffective. These include ultrasonic devices, mosquito-repelling plants and candles or garlic. Traps that capture large numbers of mosquitoes haven’t been proven effective at eliminating pest bites, even though they might capture impressive numbers of mosquitoes.
A community-wide effort might be necessary to eliminate standing water such as swamps, marshes and ditches in public areas.
For more information, contact your Hardin County Cooperative Extension Service at 270.765.4121, www.hardinext.org or Amy.Aldenderfer@uky.edu.
Educational programs of the Kentucky Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability or national origin.
Don’t Forget about the Lincoln Trail Area Master Gardeners’ 13th Annual Plant Fair: MAY 21st from 9 a.m. – 3 p.m. at the Hardin County Extension Office, 201 Peterson Drive, Elizabethtown. Rain or Shine! (hopefully, shine.)
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