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Mosquito Management by Trained Personnel - Purdue Extension ...

Mosquito Management by Trained Personnel - Purdue Extension ...

MOSQUITO MANAGEMENT BY

MOSQUITO MANAGEMENT BY TRAINED PERSONNEL — E-52-W 4 adult mosquitoes and provides little or no residual control. Like the thermal fog generator, the cold aerosol machine should be used during the time the adult mosquitoes are most active. This means from twilight until about midnight, when atmospheric conditions are usually best (lack of wind). ULV application is generally the preferred space treatment for adult mosquito control. The cold aerosol method has certain advantages over thermal fog generators. Less insecticide is applied, resulting in fewer pollution problems. Smaller holding tanks and consequently smaller vehicles are needed because smaller quantities of insecticide are used. There is less of a traffic hazard compared with thermal fog applications, which reduce visibility. ULV ground applications, however, are somewhat less effective than thermal fogs in heavy vegetation, because the larger ULV droplets tend to be filtered out more rapidly. Insecticides recommended for use with ULV ground equipment include: permethrin (Biomist), chlorpyrifos (Dursban, Mosquitomist), sumethrin (Anvil), malathion (Fyfanon), synergized pyrethrins, and resmethrin (Scourge). (Note that resmethrin is a restricted use insectcide.) Application by fixed-wing aircraft or helicopter for adult mosquito control is also a common practice. It is useful under emergency conditions or if areas to be controlled are too large or are inaccessible for economical treatment with ground powered equipment. Best results are obtained in areas without dense tree cover so that spray particles can penetrate the low shrub zone where the greatest mosquito activity occurs. To obtain uniform coverage of an area, careful observance of preplanned flight patterns, altitudes, and air speeds is essential. Applications should not be made over a food or feed crop area or populated areas unless the insecticide is labelled for that use. Label directions regarding application over fishbearing waters should be followed. The same insecticides for use with ground ULV equipment can be considered for aerial treatment. For proper mixing instructions, application rates, and precautions for any insecticides used, all label directions should be read and followed carefully. READ AND FOLLOW ALL LABEL INSTRUCTIONS. THIS INCLUDES DIRECTIONS FOR USE, PRECAUTIONARY STATEMENTS (HAZ- ARDS TO HUMANS, DOMESTIC ANIMALS, AND ENDANGERED SPECIES), ENVIRONMENTAL HAZARDS, RATES OF APPLICATION, NUMBER OF APPLICATIONS, REENTRY INTERVALS, HARVEST RESTRICTIONS, STORAGE AND DISPOSAL, AND ANY SPECIFIC WARNINGS AND/OR PRECAUTIONS FOR SAFE HANDLING OF THE PESTICIDE. Revised 5/2010 It is the policy of the Purdue University Cooperative Extension Service that all persons have equal opportunity and access to its educational programs, services, activities, and facilities without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. Purdue University is an Affirmative Action institution. This material may be available in alternative formats. 1-888-EXT-INFO

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