Equipment & Products
 

FREQUENTLY ASKED QUESTIONS

QUICK FACTS ABOUT MOSQUITOES

  • There are about 150 species of mosquitoes in the United States .
  • Mosquitoes are even found in the Arctic.
  • Mosquitoes usually stay within about 2 miles of their breeding grounds.
  • Adult mosquitoes live from a few hours to a few months.
  • All mosquitoes need water in their early stages of development.

MOSQUITO CONTROL


Why Do We Need Mosquito Control?

•  To enhance summer enjoyment. Summers are short in many parts of the country, and many people enjoy being outdoors during this time.

•  To prevent disease transmission to animals and people, especially the elderly and children, who are most at risk.

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What Can The Property Owner Do To Reduce Mosquitoes?

  • Get rid of old tires, tin cans, buckets, drums, bottles, or any water holding containers.
  • Fill in or drain any low places (puddles, ruts) in yard.
  • Keep drains, ditches, and culverts clean of weeds and trash so water will drain properly.
  • Cover trash containers to keep out rainwater.
  • Repair leaky pipes and outside faucets.
  • Empty plastic wading pool at least once a week and store it indoors when not is use.
  • Make sure your backyard pool is properly cared for while on vacation.
  • Fill in water-holding tree rot holes and hollow stumps with sand or concrete.
  • Change the water in birdbaths and plant pots, or dip trays at lease once each week.
  • Keep grass cut short and shrubbery well trimmed around the house so adult mosquitoes will not hide there.

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What Can I Do To Minimize Risk To My Employees Who Must Work Outdoors?

The National Institute for Occupational Safety and Health offers guidelines for minimizing the risk to outdoor workers. Here is a link to that information:

http://www.cdc.gov/niosh/topics/westnile/wnvfacts_outdr.html

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How Do Mosquitoes Spread Disease?

Mosquitoes spread diseases when they “bite” their victims. Although it's commonly referred to as a bite, the actual process is a piercing/sucking action. Only the female mosquito bites, piercing her victim's skin with a structure similar to a long, sharp-ended straw. She must suck her victim's blood up through the shaft; but the blood is thick. To make the blood easier to draw, she injects her saliva (which contains blood thinners) into it. This saliva is what causes irritation and itch. If her victim's blood contains disease-causing organisms, they too get drawn up into the mosquito's stomach. The organisms are maintained within the mosquito and eventually injected into the next victim's bloodstream. In this way the mosquito can spread disease from animal to animal, animal to man, or from one person to another.

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Where Can I Find Information About The Safety Of Mosquito Control Products?

Every product that Professional Mosquito Control sells or uses in their service has the Material Safety Data Sheet (MSDS) and Label available, either online (next to the corresponding product), via fax or snail mail.

For general safety questions, we have provided a link to the US Environmental Protection Agency's (EPA) webpage of frequent questions about mosquito control at http://www.epa.gov/pesticides/health/mosquitoes/mosquito_faq.htm#6.

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How effective are mosquito-catching devices?

Do bug zappers work?

Not really. Studies have shown that the majority of the bugs the zappers kill are not mosquitoes. Only 3-4% of the bugs found in the zappers are biting mosquitoes. They actually kill more of the bugs that feed on the mosquitoes.

Do carbon dioxide emitting machines work?

There has been no scientific data to prove that these machines collect enough mosquitoes to make any significant reduction in the mosquito population. Carbon dioxide is only one of the chemicals that attract female mosquitoes. They are also very sensitive to other chemicals, such as hormones and amino acids. Some people claim the carbon dioxide attracts more mosquitoes to a specific area, potentially increasing the population.

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Will Putting Up Bat Houses In My Yard Control Mosquitoes?

Many people believe that increasing the bat population will reduce the mosquito population. While bats eat a lot of insects, they do not prefer mosquitoes. A recent study found that mosquitoes made up only 0.7% of the bat's diet.

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What Are Mosquitoes Light Traps For?

We use the light traps to evaluate the effectiveness of our applications. Homeowners associations use them to evaluate the effectiveness of their programs, whether they are doing their own mosquito control or if we are providing service for them. The light traps are also used by cities that only do applications for mosquito control when the population reaches a pre-determined threshold level.

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What Is The Difference Between Thermal And ULV Fogging?

Thermal Fogging

A thermal fogger is appropriately named since it is a device that uses heat to produce a fog without degrading the active ingredient. A thermal fogger produces a range of droplet sizes including a large number of very small droplets. This makes a thermal fogger the preferred type of equipment to reach air spaces in areas highly obstructed by vegetation, or other physical obstructions such as buildings. The large number of very small droplets produced in a thermally generated fog also make the fog highly visible. This can help the operator to monitor the fog and ensure thoroughness of application.

Ultra-Low-Volume (ULV) Cold Fogging

ULV Cold Fogging

A ULV sprayer generates fog droplets by using a high volume of air at low pressure. Such a system enables droplets of a more precise size to be generated. The absence of a large number of very small droplets will limit the penetration of the fog into highly obstructed areas. ULV sprayers can dispense formulations in a more concentrated form since less diluent is required. Also, the ability to be able to calibrate the machine to produce droplets of the optimum size for the type of chemical being used make ULV spraying the method of choice whenever possible.

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Can I Request To Have My Property Excluded From Spraying?

Yes. Professional Mosquito Control maintains a file of residents who wish to have their property excluded from spraying. Once you have requested to be excluded, that request will remain in effect until we are otherwise notified.

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Do You Service The Same Area As The Metropolitan Mosquito Control District (MMCD) In MN?

Professional Mosquito Control is not affiliated with the MMCD, but we do offer private services for homeowners and businesses located in the area covered by the MMCD. Here is a link to their site: http://www.mmcd.org/ .

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What Are Asian Lady Beetles?

Yard & Garden BriefMULTICOLORED ASIAN LADY BEETLES
Jeffrey D. Hahn
Assistant Extension Entomologist

Lady beetles are beneficial because they feed on harmful insects such as aphids, that can damage plants in gardens and landscapes. However, one lady beetle species, the multicolored Asian lady beetle, Harmonia axyridis , has become very troublesome in Minnesota . Also known as Halloween lady beetles, Japanese lady beetle, and Asian lady beetle, these insects cluster around buildings in large numbers during fall as they search for protected sites to overwinter.

History
The multicolored Asian lady beetle is a native of eastern Asia . These insects were released in California by the U.S. Department of Agriculture in 1916 and in 1964 -1965 for biological control of pecan aphids. They were also released in the late 1970's and early 1980's in Connecticut, Delaware, Georgia, Louisiana, Maine, Maryland, Mississippi, Ohio, Pennsylvania, and Washington. However, the lady beetles did not appear to become established from these releases.

Although multicolored Asian lady beetles were never released in Minnesota , they moved into the state from nearby areas. They were first sighted in Minnesota in 1995. The first report of major infestations around buildings occurred in 1998, and by 2000 the insect had generally dispersed throughout the state.

Identification
The multicolored lady beetle looks very similar to other lady beetles but is generally larger, about 1/3-inch long. Its appearance is quite variable, ranging from orange to yellow to red or even black. This beetle typically has 19 black spots on its wing covers. These spots vary from being relatively thick to being no more than faint traces of spots. Some multicolored Asian lady beetles have no spots at all. There may be fewer spots present when they are faint. There is a prominent black 'M' shape behind the head in most specimens. This 'M' can look thick, thin or even broken in appearance.

Habits
In their native Asian habitat, multicolored Asian lady beetles feed primarily on aphids and other small, soft-bodied insects found in trees. In the U.S. , they feed on insects in trees as well as pests in row crops and gardens. In Asia , these insects are usually found congregating in large numbers on white colored cliffs each fall, to overwinter. Lacking cliffs In the U.S., these lady beetles are often found on the west and south sides of tall or prominent, light-colored buildings in mid- to late October. From the exteriors of buildings they crawl under siding and roofing and into cracks and gaps in foundations and around windows, doors and other openings. They may continue to move into the living areas of homes or they may spend the winter inside the attic or wall voids. Mild, sunny winter days can wake these dormant insects. They become active and move into the home's living quarters. Once spring arrives, the remaining lady beetles wake up and attempt to move outdoors. Not all succeed and many are trapped indoors. Multicolored Asian lady beetles do not reproduce indoors.

Importance
Although multicolored Asian lady beetles can be a nuisance when they occur in large numbers, they do not damage homes or other property. These lady beetles cannot sting and they do not carry disease. They can pinch the skin and cause minor, short-lived discomfort. They can secrete a strong smelling yellowish liquid from the joints of their legs, a process called reflex bleeding. They use this to discourage predators or at other times when they are stressed. This liquid can also stain light colored surfaces. Repeated exposure to dead lady beetles can cause an allergic reaction in some individuals.

Management
Prevention is the most effective step in managing lady beetles. Check the outside of your home for spaces and cracks that may allow insects easy entry. Make any necessary repairs by the end of September.

Install tight-fitting door sweeps or thresholds at the base of all exterior entry doors. Gaps of 1/16 inch or more will permit entry of insects. Seal openings where pipes and wires enter the foundation and siding, for instance, around outdoor faucets, receptacles, gas meters, clothes dryer vents, and telephone/cable TV wires. Holes can be plugged with caulk, cement, urethane expandable foam, steel wool, copper mesh, or other suitable construction sealant. Caulk around windows, doors, chimneys and fascia boards, etc. using a high quality silicone or acrylic latex caulk. Repair gaps and tears in window and door screens. Repair screens in roof and soffit vents, and in bathroom and kitchen fans. Keep siding, eaves and soffits in good repair, replacing damaged areas if necessary, to keep the exterior walls as insect-proof as possible . Physical exclusion can be supplemented with a residual insecticide barrier. For insecticides to be effective, they must be applied before insects begin to enter buildings, which is early- to mid-October for multicolored Asian beetles.  Apply the insecticide according to label directions to siding, foundation, windowsills, and door thresholds, paying particular attention to the south and west sides where the insects are most common. You may wish to consider hiring a professional pest control service.

Remove lady beetles found indoors with a broom or vacuum. Indoor insecticide sprays are of very limited benefit. Once lady beetles move into wall voids there is no practical control to prevent them from emerging later during winter or spring. The only control is to remove them as they are seen.

University of Minnesota Extension Service

 

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